Solved papers for CET Karnataka Medical CET - Karnataka Medical Solved Paper-2014

done CET - Karnataka Medical Solved Paper-2014 Total Questions - 180

• question_answer1) A solenoid has length 0.4 cm, radius 1 cm and 400 turns of wire. If a current of 5 A is passed through this solenoid, what is the magnetic field inside the solenoid?
  A)
   \[6.28\times {{10}^{-7}}T~\]
  done clear
  B)
   \[6.28\times {{10}^{-4}}T\]
  done clear
  C)
   \[6.28\times {{10}^{-6}}T\]
  done clear
  D)
   \[6.28\times {{10}^{-3}}T\]
  done clear
  E)
   None of the Above
  done clear
  View Answer play_arrow

• question_answer2) A gyromagnetic ratio of the electron revolving in a circular orbit of hydrogen atom is\[8.8\times {{10}^{10}}C\text{ }k{{g}^{-1}}\]. What is the mass of the electron? Given charge of the electron \[=1.6\times {{10}^{-19}}C\].
  A)
   \[1.1\times {{10}^{-29}}kg\]
  done clear
  B)
   \[1\times {{10}^{-29}}kg\]
  done clear
  C)
   \[\frac{1}{11}\times {{10}^{-29}}kg\]  
  done clear
  D)
   \[0.1\times {{10}^{-29}}kg\]
  done clear
  View Answer play_arrow

• question_answer3) What is the value of shunt resistance required to convert a galvanometer of resistance \[100\Omega \] into an ammeter of range 1A? Given: Full scale deflection of the galvanometer is 5 mA.
  A)
   \[0.5\Omega \]
  done clear
  B)
   \[\frac{5}{9.95}\Omega \]
  done clear
  C)
   \[0.05\Omega \]
  done clear
  D)
   \[\frac{9.95}{5}\Omega \]
  done clear
  View Answer play_arrow

• question_answer4) A circular coil of radius 10 cm and 100 turns carries a current 1 A. What is the magnetic moment of the coil?
  A)
   \[3.142A\,{{m}^{2}}\]
  done clear
  B)
   \[3.142\times {{10}^{4}}\text{ }A\text{ }{{m}^{2}}\]
  done clear
  C)
   \[3A\,{{m}^{2}}\]
  done clear
  D)
   \[{{10}^{4}}A\,{{m}^{2}}\]
  done clear
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• question_answer5) A susceptibility of a certain magnetic material is 400. What is the class of the magnetic material?
  A)
   Ferromagnetic
  done clear
  B)
   Diamagnetic
  done clear
  C)
   Ferroelectric   
  done clear
  D)
   Paramagnetic
  done clear
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• question_answer6) A solenoid of inductance 2 H carries a current of 1 A. What is the magnetic energy stored in a solenoid?
  A)
   \[4J\]  
  done clear
  B)
   \[2J\]  
  done clear
  C)
   \[5J\]  
  done clear
  D)
   \[1J\]
  done clear
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• question_answer7)  A multimeter reads a voltage of a certain A.C. source as 100 V. What is the peak value of voltage of A.C. source?
  A)
   \[141.4V\]      
  done clear
  B)
   \[200V\]
  done clear
  C)
   \[400V\]
  done clear
  D)
   \[100V\]
  done clear
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• question_answer8) A series LCR circuit contains inductance 5 mH, capacitance \[2\mu F\] and resistance \[10\Omega \]. If a frequency A.C. source is varied, what is the frequency at which maximum power is dissipated?
  A)
   \[\frac{2}{\pi }\times {{10}^{5}}Hz\]
  done clear
  B)
   \[\frac{{{10}^{5}}}{\pi }Hz\]
  done clear
  C)
   \[\frac{5}{\pi }\times {{10}^{3}}Hz\]
  done clear
  D)
   \[\frac{{{10}^{-5}}}{\pi }Hz\]
  done clear
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• question_answer9) A step down transformer has 50 turns on secondary and 1000 turns on primary winding. If a transformer is connected to 220 V 1 A A.C. source, what is output current of the transformer?
  A)
   \[100A\]         
  done clear
  B)
   \[\frac{1}{20}A\]
  done clear
  C)
   \[2A\]            
  done clear
  D)
   \[20A\]
  done clear
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• question_answer10) The average power dissipated in A.C. circuit is 2 watt. If a current flowing through a circuit is 2 A and impedance is \[1\Omega \], what is the power factor of the A.C. circuit?
  A)
   \[0\]    
  done clear
  B)
   \[0.5\] 
  done clear
  C)
   \[\frac{1}{\sqrt{2}}\]  
  done clear
  D)
   \[1\]
  done clear
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• question_answer11) A plane electromagnetic wave of frequency 20 MHz travels through a space along x direction. If the electric field vector at a certain point in space is \[6V\text{ }{{m}^{-1}}\], what is the magnetic field vector at that point?
  A)
   \[2T\]            
  done clear
  B)
   \[2\times {{10}^{-8}}T\]
  done clear
  C)
   \[\frac{1}{2}T\]          
  done clear
  D)
   \[1\times {{10}^{-8}}T\]
  done clear
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• question_answer12) Two capacitors of 10 PF and 20 PF are connected to 200 V and 100 V sources respectively. If they are connected by the wire, what is the common potential of the capacitors?
  A)
   \[300volt\]       
  done clear
  B)
   \[133.3volt\]
  done clear
  C)
   \[400volt\]
  done clear
  D)
   \[150volt\]
  done clear
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• question_answer13) A physical quantity Q is found to depend on observables x, y and z, obeying relation \[Q=\frac{{{x}^{2}}\,{{y}^{2}}}{z}\]. The percentage error in the measurements of x, y and z are 1%, 2% and 4% respectively. What is percentage error in the quantity Q?
  A)
   \[11%\]
  done clear
  B)
   \[4%\]  
  done clear
  C)
   \[1%\]
  done clear
  D)
   \[3%\]
  done clear
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• question_answer14) Which of the following is not a vector quantity?
  A)
   Momentum   
  done clear
  B)
   Weight
  done clear
  C)
   Potential energy
  done clear
  D)
   Nuclear spin
  done clear
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• question_answer15) A car moves from A to B with a speed of 30 kmph and from B to A with a speed of 20 km ph. What is the average speed of the car?
  A)
   \[50kmph\]      
  done clear
  B)
   \[25kmph\]
  done clear
  C)
   \[10kmph\]      
  done clear
  D)
   \[24kmph\]
  done clear
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• question_answer16) A body starts from rest and moves with constant acceleration for t s. It travels a. distance \[{{x}_{1}}\] in first half of time and \[{{x}_{2}}\] in next half of time, then
  A)
   \[{{x}_{2}}=3{{x}_{1}}\]       
  done clear
  B)
   \[{{x}_{2}}={{x}_{1}}\]
  done clear
  C)
   \[{{x}_{2}}=4{{x}_{1}}\]       
  done clear
  D)
   \[{{x}_{2}}=2{{x}_{1}}\]
  done clear
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• question_answer17) A person is driving a vehicle at uniform speed of  \[5m\text{ }{{s}^{-1}}\]on a level curved track of radius 5 m. The coefficient of static friction between tyres and road is 0.1. Will the person slip while taking the turn with the same speed? Take \[g=10m{{s}^{-2}}\] Choose the correct statement.
  A)
   A person will slip if \[{{v}^{2}}<5m\,{{s}^{-1}}\].
  done clear
  B)
   A person will slip if  \[{{v}^{2}}=5m\,{{s}^{-1}}\].
  done clear
  C)
   A person will not slip if  \[{{v}^{2}}>10\,m\,{{s}^{-1}}\].
  done clear
  D)
   A person will slip if \[{{v}^{2}}>5\text{ }m\text{ }{{s}^{-1}}\].
  done clear
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• question_answer18) A stone is thrown vertically at a speed of \[30m{{s}^{-1}}\]making an angle of \[{{45}^{o}}\] with the horizontal. What is the maximum height reached by the stone? Take \[g=10m\,{{s}^{-2}}\]
  A)
   \[15m\]
  done clear
  B)
   \[30m\]
  done clear
  C)
   \[10m\]
  done clear
  D)
   \[22.5m\]
  done clear
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• question_answer19) A force \[\overrightarrow{F}=5\hat{i}+2\hat{j}-5\hat{k}\]acts on a particle whose position vector is \[\overrightarrow{r}=\hat{i}-2\hat{j}+\hat{k}\]. What is the torque about the origin?
  A)
   \[8\hat{i}-10\hat{j}-8\hat{k}\]
  done clear
  B)
    \[8\hat{i}+10\hat{j}+12\hat{k}\]
  done clear
  C)
   \[10\hat{i}-10\hat{j}-\hat{k}\]
  done clear
  D)
   \[8\hat{i}+10\hat{j}-12\hat{k}\]
  done clear
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• question_answer20) What is a period of revolution of earth satellite? Ignore the height of satellite above the surface of earth. Given:

  (1) The value of gravitational acceleration\[g=10\,m\,{{s}^{-2}}\].

  (2) Radius of earth \[{{R}_{E}}=6400\text{ }km\]. Take \[\pi =3.14\].

  A)
   \[83.73\text{ }minutes~\]
  done clear
  B)
   \[85\text{ }minutes\]
  done clear
  C)
   \[90minutes\]
  done clear
  D)
   \[156\text{ }minutes\]
  done clear
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• question_answer21) A period of geostationary satellite is
  A)
   \[30h\]
  done clear
  B)
   \[24h\] 
  done clear
  C)
   \[48h\]
  done clear
  D)
   \[12h\]
  done clear
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• question_answer22) What is the source temperature of the Carnot engine required to get 70% efficiency? Given sink temperature \[={{27}^{o}}C\]
  A)
   \[{{270}^{o}}C\]        
  done clear
  B)
   \[{{1000}^{o}}C\]
  done clear
  C)
   \[{{727}^{o}}C\]
  done clear
  D)
    \[{{90}^{o}}C\]
  done clear
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• question_answer23) A 10 kg metal block is attached to a spring of spring constant\[1000N\text{ }{{m}^{-1}}\]. A block is displaced from equilibrium position by 10 cm and released. The maximum acceleration of the block is
  A)
   \[200m{{s}^{-2}}\]      
  done clear
  B)
   \[10m{{s}^{-2}}\]
  done clear
  C)
   \[0.1m\text{ }{{s}^{-2}}\]       
  done clear
  D)
   \[100m\text{ }{{s}^{-2}}\]
  done clear
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• question_answer24) A metallic wire of 1 m length has a mass of \[10\times {{10}^{-3}}kg\]. If a tension of 100 N is applied to a wire, what is the speed of transverse wave.
  A)
   \[200m{{s}^{-1}}\]      
  done clear
  B)
   \[100m{{s}^{-1}}\]
  done clear
  C)
   \[0.1m\text{ }{{s}^{-1}}\]
  done clear
  D)
   \[10m\text{ }{{s}^{-1}}\]
  done clear
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• question_answer25) A train is approaching towards a platform with a speed of \[10m\text{ }{{s}^{-1}}\]while blowing a whistle of frequency 340 Hz. What is the frequency of whistle heard by a stationary observer on the platform? Given speed of sound \[=340m\text{ }{{s}^{-1}}\].
  A)
   \[340Hz\]       
  done clear
  B)
   \[330Hz\]
  done clear
  C)
   \[360Hz\]        
  done clear
  D)
   \[350Hz\]
  done clear
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• question_answer26) A rotating wheel changes angular speed from 1800 rpm to 3000 rpm in 20 s. What is the angular acceleration assuming to be uniform?
  A)
   \[2\pi \text{ }rad\text{ }{{s}^{-2}}\]
  done clear
  B)
   \[60\pi \text{ }rad\text{ }{{s}^{-2}}\]
  done clear
  C)
   \[40\pi \text{ }rad\text{ }{{s}^{-2}}\]
  done clear
  D)
   \[90\pi \text{ }rad\text{ }{{s}^{-2}}\]
  done clear
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• question_answer27)  A flow of liquid is streamline if the Reynold number is
  A)
   between 2000 to 3000
  done clear
  B)
   less than 1000
  done clear
  C)
   between 4000 to 5000
  done clear
  D)
   greater than 1000
  done clear
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• question_answer28) A pipe of 30 cm long and open at both the ends produces harmonics. Which harmonic mode of pipe resonates a 1.1 kHz source? Given speed of sound in air \[=330m\text{ }{{s}^{-1}}\].
  A)
   Third harmonic
  done clear
  B)
   Fifth harmonic
  done clear
  C)
   Second harmonic
  done clear
  D)
   Fourth harmonic
  done clear
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• question_answer29) In anomalous expansion of water, at what temperature, the density of water is maximum?
  A)
   \[>{{4}^{o}}C\]         
  done clear
  B)
   \[{{4}^{o}}C\]
  done clear
  C)
   \[{{10}^{o}}C\]          
  done clear
  D)
   \[<{{4}^{o}}C\]
  done clear
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• question_answer30) An aero plane executes a horizontal loop at a speed of 720 km ph with its wings banked at\[{{45}^{o}}\]. What is the radius of the loop? Take \[g=10m{{s}^{-2}}\].
  A)
   \[7.2km\]       
  done clear
  B)
   \[4km\]
  done clear
  C)
   \[2km\]         
  done clear
  D)
   \[4.5km\]
  done clear
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• question_answer31) A body having a moment of inertia about its axis of rotation equal to \[3kg\text{ }{{m}^{2}}\]is rotating with angular velocity of\[3\text{ }rad\text{ }{{s}^{-1}}\]. Kinetic energy of this rotating body is same as that of a body of mass 27 kg moving with velocity v. The value of r is
  A)
   \[2m\text{ }{{s}^{-1}}\]         
  done clear
  B)
   \[1m\text{ }{{s}^{-1}}\]
  done clear
  C)
   \[1.5m{{s}^{-1}}\]       
  done clear
  D)
   \[0.5m{{s}^{-1}}\]
  done clear
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• question_answer32) A cycle tyre bursts suddenly. What is the type of this process?
  A)
   Isochoric      
  done clear
  B)
   Isothermal
  done clear
  C)
   Isobaric       
  done clear
  D)
   Adiabatic
  done clear
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• question_answer33) An object is placed at 20 cm in front of a concave mirror produces three times magnified real image. What is focal length of the concave mirror?
  A)
   \[10cm\]        
  done clear
  B)
   \[15cm\]
  done clear
  C)
   \[7.5cm\]        
  done clear
  D)
   \[6.6cm\]
  done clear
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• question_answer34)  A focal length of a lens is 10 cm. What is power of a lens in dioptre?
  A)
   \[15D\]
  done clear
  B)
   \[0.1D\]
  done clear
  C)
   \[20D\]
  done clear
  D)
   \[10D\]
  done clear
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• question_answer35) A microscope is having objective of focal length 1 cm and eyepiece of focal length 6 cm. If tube length is 30 cm and image is formed at the least distance of distinct vision, what is the magnification produced by the microscope? Take \[D=25\text{ }cm\].
  A)
   \[25\]  
  done clear
  B)
   \[6\]    
  done clear
  C)
   \[6\]
  done clear
  D)
   \[150\]
  done clear
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• question_answer36)  A -fringe width of a certain interference pattern is \[\beta =0.002cm\]. What is the distance of 5th dark fringe from centre?
  A)
   \[1.1\times {{10}^{-2}}cm\]
  done clear
  B)
   \[1\times {{10}^{-2}}cm\]
  done clear
  C)
   \[3.28\times {{10}^{6}}cm\]
  done clear
  D)
   \[11\times {{10}^{-2}}cm\]
  done clear
  E)
   None of the Above
  done clear
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• question_answer37) Diameter of the objective of a telescope is 200 cm. What is the resolving power of a telescope? Take wavelength of light =\[\text{5000}\overset{\text{o}}{\mathop{\text{A}}}\,\].
  A)
   \[1\times {{10}^{6}}\]
  done clear
  B)
   \[6.56\times {{10}^{6}}\]
  done clear
  C)
   \[3.28\times {{10}^{6}}\]
  done clear
  D)
   \[3.28\times {{10}^{5}}\]
  done clear
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• question_answer38) A polarized light of intensity \[{{I}_{0}}\] is passed through another polarizer whose pass axis makes an angle of \[{{60}^{o}}\] with the pass axis of the former. What is the intensity of emergent polarized light from second polarizer?
  A)
   \[I={{I}_{0}}/5\]        
  done clear
  B)
   \[I={{I}_{0}}\]
  done clear
  C)
   \[{{I}_{0}}/4\] 
  done clear
  D)
   \[I={{I}_{0}}/6\]
  done clear
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• question_answer39) What is the de Broglie wavelength of the electron accelerated through a potential difference of 100 volt?
  A)
   \[0.1227\overset{\text{o}}{\mathop{\text{A}}}\,\]     
  done clear
  B)
   \[12.27\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  C)
   \[0.001227\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  D)
   \[1.227\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
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• question_answer40) The maximum kinetic energy of the photoelectrons depends only on
  A)
   incident angle 
  done clear
  B)
   potential
  done clear
  C)
   pressure       
  done clear
  D)
   frequency
  done clear
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• question_answer41) Which of the following spectral series of hydrogen atom is lying in visible range of electromagnetic wave?
  A)
   Lyman series  
  done clear
  B)
   Paschen series
  done clear
  C)
   Balmer series  
  done clear
  D)
   Pfund series
  done clear
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• question_answer42) What is the energy of the electron revolving in third orbit expressed in eV?
  A)
   \[4.53eV\]        
  done clear
  B)
   \[1.51eV\]
  done clear
  C)
   \[4eV\]          
  done clear
  D)
   \[3.4eV\]
  done clear
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• question_answer43) The relation between half-life (T) and decay constant \[(\lambda )\] is
  A)
   \[\lambda T={{\log }_{e}}2\]     
  done clear
  B)
   \[\lambda T=1\]
  done clear
  C)
   \[\lambda =\log 2T\]    
  done clear
  D)
   \[\lambda T=\frac{1}{2}\]
  done clear
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• question_answer44) A force between two protons is same as the force between proton and neutron. The nature of the force is
  A)
   electrical force
  done clear
  B)
   weak nuclear force
  done clear
  C)
   gravitational force
  done clear
  D)
   strong nuclear force
  done clear
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• question_answer45) In n type semiconductor, electrons are majority charge carriers but it does not show any negative charge. The reason is
  A)
   mobility of electrons is extremely small
  done clear
  B)
   electrons are stationary
  done clear
  C)
   atom is electrically neutral
  done clear
  D)
   electrons neutralize with holes
  done clear
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• question_answer46) For the given digital circuit, write the truth table and identify the logic gate it represents
  A)
   NAND gate
  done clear
  B)
   OR gate      
  done clear
  C)
   AND gate     
  done clear
  D)
   NOR gate  
  done clear
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• question_answer47) If \[\alpha \]-current gain of a transistor is 0.98. What is the value of R-current gain of the transistor?
  A)
   \[4.9\]              
  done clear
  B)
   \[0.49\]
  done clear
  C)
   \[5\]               
  done clear
  D)
   \[49\]
  done clear
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• question_answer48) A tuned amplifier circuit is used to generate a carrier frequency of 2 MHz for the amplitude modulation. The value of \[\sqrt{LC}\] is           
  A)
   \[\frac{1}{3\pi \times {{10}^{6}}}\]          
  done clear
  B)
   \[\frac{1}{2\pi \times {{10}^{6}}}\]
  done clear
  C)
   \[\frac{1}{4\pi \times {{10}^{6}}}\]
  done clear
  D)
   \[\frac{1}{2\times {{10}^{6}}}\]
  done clear
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• question_answer49) If a charge on the body is\[1\text{ }nC\], then how many electrons are present on the body?
  A)
   \[6.25\times {{10}^{27}}\]
  done clear
  B)
   \[1.6\times {{10}^{19}}\]
  done clear
  C)
   \[6.25\times {{10}^{28}}\]
  done clear
  D)
   \[6.25\times {{10}^{9}}\]
  done clear
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• question_answer50) Two equal and opposite charges of masses \[{{m}_{1}}\] and \[{{m}_{2}}\] are accelerated in an uniform electric field through the same distance. What is the ratio of their accelerations if their ratio of masses is \[\frac{{{m}_{1}}}{{{m}_{2}}}=0.5\]?
  A)
   \[\frac{{{a}_{1}}}{{{a}_{2}}}=2\]         
  done clear
  B)
   \[\frac{{{a}_{1}}}{{{a}_{2}}}=0.5\]
  done clear
  C)
   \[\frac{{{a}_{1}}}{{{a}_{2}}}=3\]        
  done clear
  D)
   \[\frac{{{a}_{1}}}{{{a}_{2}}}=1\]
  done clear
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• question_answer51) What is the nature of Gaussian surface involved in Gauss law of electrostatic?
  A)
   Magnetic      
  done clear
  B)
   Scalar
  done clear
  C)
   Vector         
  done clear
  D)
   Electrical
  done clear
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• question_answer52) What is the electric potential at a distance of 9 cm from 3 nC?
  A)
   \[300V\]
  done clear
  B)
   \[270V\]
  done clear
  C)
   \[30V\]
  done clear
  D)
   \[3V\]
  done clear
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• question_answer53) A voltmeter reads 4 V when connected to a parallel plate capacitor with air as a dielectric. When a dielectric slab is introduced between plates for the same configuration, voltmeter reads 2 V. What is the dielectric constant of the material?
  A)
   \[8\]   
  done clear
  B)
   \[0.5\]   
  done clear
  C)
   \[10\]  
  done clear
  D)
   \[2\]
  done clear
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• question_answer54) A spherical conductor of radius 2 cm is uniformly charged with 3 nC. What is the electric field at a distance of 3 cm from the centre of the sphere?
  A)
   \[3\times {{10}^{4}}V{{m}^{-1}}~\]
  done clear
  B)
   \[3\times {{10}^{6}}V{{m}^{-1}}\]
  done clear
  C)
   \[3\times {{10}^{-4}}V{{m}^{-1}}\]
  done clear
  D)
   \[3V{{m}^{-1}}\]
  done clear
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• question_answer55) A carbon film resistor has colour code Green Black Violet Gold. The value of the resistor is
  A)
   \[500\pm 5%\text{ }M\Omega \]
  done clear
  B)
   \[50M\Omega \]
  done clear
  C)
   \[-500\pm 10%M\Omega \]
  done clear
  D)
   \[500M\Omega \]
  done clear
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• question_answer56) Two resistors of resistances\[2\Omega \]. and \[6\Omega \]. Are connected in parallel. This combination is then connected to a battery of emf 2 V and internal resistance\[0.5\Omega \]. What is the current flowing through the battery?
  A)
   \[\frac{4}{17}A\]
  done clear
  B)
   \[4A\] 
  done clear
  C)
   \[1A\]
  done clear
  D)
   \[\frac{4}{3}A\]
  done clear
  View Answer play_arrow

• question_answer57) The equivalent resistance of two resistors connected in series is \[6\Omega \] and their parallel equivalent resistance is\[\frac{4}{3}\Omega \]. What are the values of resistances?
  A)
   \[4\Omega ,\,2\Omega \]      
  done clear
  B)
   \[4\Omega ,\,6\Omega \]
  done clear
  C)
   \[6\Omega ,\,2\Omega \]      
  done clear
  D)
   \[8\Omega ,\,1\Omega \]
  done clear
  View Answer play_arrow

• question_answer58) In a potentiometer experiment of a cell of emf 1.25 V gives balancing length of 30 cm. If the cell is replaced by another cell, balancing length is found to be 40 cm. What is the emf of second cell?
  A)
   \[\simeq 1.47V\]       
  done clear
  B)
   \[\simeq 1.57V\]
  done clear
  C)
   \[\simeq 1.37V\]       
  done clear
  D)
   \[\simeq 1.67V\]
  done clear
  View Answer play_arrow

• question_answer59) A charged particle experiences magnetic force in the presence of magnetic field. Which of the following statement is correct?
  A)
   The particle is stationary and magnetic field is perpendicular.
  done clear
  B)
   The particle is moving and magnetic field is perpendicular to the velocity.
  done clear
  C)
   The particle is stationary and magnetic field is parallel.
  done clear
  D)
   The particle is moving and magnetic field is parallel to velocity.
  done clear
  View Answer play_arrow

• question_answer60) If a velocity has both perpendicular and parallel field, what is the path followed by a charged particle?
  A)
   Linear
  done clear
  B)
   Circular
  done clear
  C)
   Helical
  done clear
  D)
   Elliptical
  done clear
  View Answer play_arrow

• question_answer61)  The IUPAC name of B is
  A)
   3-methylbutan-2-ol
  done clear
  B)
   2-methylbutan-3-ol
  done clear
  C)
   2-methylbutan-2-ol
  done clear
  D)
  , pentan-2-ol.
  done clear
  View Answer play_arrow

• question_answer62) For Freundlich isotherm a graph of \[\log \frac{x}{m}\] is plotted against log P. The slope of the line and its y-axis intercept, respectively corresponds to
  A)
   \[\frac{1}{n},k\]       
  done clear
  B)
   \[\log \frac{1}{n},k\]
  done clear
  C)
   \[\frac{1}{n},logk\]
  done clear
  D)
   \[\log \frac{1}{n},\,\log k\]
  done clear
  View Answer play_arrow

• question_answer63) A plot of \[\frac{1}{T}\]vs k for a reaction gives the slope\[-1\times {{10}^{4}}K\]. The energy of activation for the reaction is (Given: \[R=8.314\text{ }J\text{ }{{K}^{-1}}mo{{l}^{-1}}\])
  A)
   \[8314\text{ }J\text{ }mo{{l}^{-1}}\]
  done clear
  B)
   \[1.202kJ\text{ }mo{{l}^{-1}}\]
  done clear
  C)
   \[12.02\text{ }J\text{ }mo{{l}^{-1}}\]
  done clear
  D)
   \[83.14\text{ }kJ\text{ }mo{{l}^{-1}}\]
  done clear
  E)
   None of the Above
  done clear
  View Answer play_arrow

• question_answer64) The IUPAC name of the complex ion formed when gold dissolves in aqua regia is
  A)
   Tetrachloridoaurate (III)
  done clear
  B)
   Tetrachloridoaurate (I)
  done clear
  C)
   Tetrachloridoaurate (II)
  done clear
  D)
   Dichloridoaurate (III).
  done clear
  View Answer play_arrow

• question_answer65) The correct sequence of reactions to be performed  to  convert  benzene  into m-bromoaniline is
  A)
   nitration, reduction, bromination
  done clear
  B)
   bromination, nitration, reduction
  done clear
  C)
   nitration, bromination, reduction
  done clear
  D)
   reduction, nitration, bromination.
  done clear
  View Answer play_arrow

• question_answer66)   Y is
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer67) \[{{A}_{(g)}}\xrightarrow{\Delta }{{P}_{(g)}}+{{Q}_{(g)}}+{{R}_{(g)}}\], follows first order kinetics with a half-life of \[69.3s\]at\[{{500}^{o}}C\]. Starting from the gas A enclosed in a container at \[{{500}^{o}}C\] and at a pressure of\[0.4atm\], the total pressure of the system after \[230s\]will be
  A)
   \[1.15atm\]       
  done clear
  B)
   \[1.32atm\]
  done clear
  C)
   \[1.22atm\] 
  done clear
  D)
   \[1.12atm\]
  done clear
  View Answer play_arrow

• question_answer68) \[Mn{{O}_{2}}+HCl\xrightarrow{\Delta }{{A}_{(g)}}\] \[{{A}_{(g)}}+{{F}_{2(excess)}}\xrightarrow{573K}{{B}_{(g)}}\] \[{{B}_{(l)}}+{{U}_{(s)}}\xrightarrow{{}}{{C}_{(g)}}+{{D}_{(g)}}\] The gases A, B, C and D are respectively
  A)
   \[C{{l}_{2}},ClF,U{{F}_{6}},Cl{{F}_{3}}\]
  done clear
  B)
   \[C{{l}_{2}},Cl{{F}_{3}},U{{F}_{6}},ClF\]
  done clear
  C)
   \[{{O}_{2}},O{{F}_{2}},{{U}_{2}}{{O}_{3}},{{O}_{2}}{{F}_{2}}\]
  done clear
  D)
   \[{{O}_{2}},{{O}_{2}}{{F}_{2}},{{U}_{2}}{{O}_{3}},O{{F}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer69) Acetophenone cannot be prepared easily starting from
  A)
   \[{{C}_{6}}{{H}_{5}}CH(OH)C{{H}_{3}}\]
  done clear
  B)
   \[{{C}_{6}}{{H}_{5}}C{{H}_{3}}\]
  done clear
  C)
   \[{{C}_{6}}{{H}_{5}}C\equiv CH\]
  done clear
  D)
   \[{{C}_{6}}{{H}_{6}}\]
  done clear
  View Answer play_arrow

• question_answer70) One mole of ammonia was completely absorbed in one litre solution each of (1)\[1M\text{ }HCl\], (2) \[1M\text{ }C{{H}_{3}}COOH\]and (3) \[1M\text{ }{{H}_{2}}S{{O}_{4}}\]at 298 K. The decreasing order for the pH of the resulting solutions is          (Given: \[{{K}_{b}}(N{{H}_{3}})=4.74\])
  A)
   \[2>3>1\]
  done clear
  B)
   \[1>2>3\]
  done clear
  C)
   \[2>1>3\]
  done clear
  D)
   \[3>2>1\]
  done clear
  View Answer play_arrow

• question_answer71) \[5.5\text{ }mg\]of nitrogen gas dissolves in \[180g\]of  water at \[273K\]and one atm pressure due to nitrogen gas. The mole fraction of nitrogen in \[180g\]of water at 5 atm nitrogen pressure is approximately
  A)
   \[1\times {{10}^{-6}}\]
  done clear
  B)
   \[1\times {{10}^{-5}}\]
  done clear
  C)
   \[1\times {{10}^{-3}}\]
  done clear
  D)
   \[1\times {{10}^{-4}}\]
  done clear
  View Answer play_arrow

• question_answer72) \[50c{{m}^{3}}\]of \[0.04M\text{ }{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]in acidic medium oxidizes a sample of \[{{H}_{2}}S\] gas to sulphur. Volume of \[0.03M\text{ }KMn{{O}_{4}}\]required to oxidize the same amount of \[{{H}_{2}}S\] gas to sulphur, in acidic medium is
  A)
   \[60c{{m}^{3}}\]    
  done clear
  B)
   \[80c{{m}^{3}}\]        
  done clear
  C)
   \[90c{{m}^{3}}\]        
  done clear
  D)
   \[120c{{m}^{3}}\]
  done clear
  View Answer play_arrow

• question_answer73) The compound that reacts the fastest with sodium meth oxide is
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer74) The pair of compounds having identical shapes for their molecules is
  A)
   \[C{{H}_{4}},S{{F}_{4}}\]
  done clear
  B)
   \[BC{{l}_{2}},Cl{{F}_{3}}\]
  done clear
  C)
   \[Xe{{F}_{2}},ZnC{{l}_{2}}\]  
  done clear
  D)
   \[S{{O}_{2}},C{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer75) Conductivity of a saturated solution of a sparingly soluble salt AB at 298 K is \[1.85\times {{10}^{-5}}S\,{{m}^{-1}}\]. Solubility product of the salt AB at 298 K is Given:  \[\wedge _{m}^{o}(AB)=140\times {{10}^{-4}}S\,{{m}^{2}}\,mo{{l}^{-1}}\]
  A)
   \[5.7\times {{10}^{-12}}\]     
  done clear
  B)
   \[1.32\times {{10}^{-12}}\]
  done clear
  C)
   \[7.5\times {{10}^{-12}}\]
  done clear
  D)
   \[1.74\times {{10}^{-12}}\]
  done clear
  View Answer play_arrow

• question_answer76) An incorrect statement with respect to \[{{S}_{N}}1\] and \[{{S}_{N}}2\] mechanisms for alkyi halide is a strong nucleophile in an aprotic
  A)
   Solvent increases the rate or favours \[{{S}_{N}}2\] Reaction
  done clear
  B)
   Competing reaction for an \[{{S}_{N}}2\] reaction is rearrangement
  done clear
  C)
   \[{{S}_{N}}1\] Reactions can be catalysed by some Lewis acids
  done clear
  D)
   a weak nucleophile and a protic solvent increases the rate or favours \[{{S}_{N}}1\] reaction.
  done clear
  View Answer play_arrow

• question_answer77) Butylated hydroxy toluene as a food additive acts as
  A)
   Antioxidant    
  done clear
  B)
   Flavouring agent
  done clear
  C)
   Colouring agent
  done clear
  D)
   Emulsifier.
  done clear
  View Answer play_arrow

• question_answer78) Terylene is NOT a
  A)
   Copolymer
  done clear
  B)
   Polyester fibre
  done clear
  C)
   Chain growth polymer
  done clear
  D)
   Step growth polymer.
  done clear
  View Answer play_arrow

• question_answer79) The correct statement is
  A)
   cyclohexadiene and cyclohexene cannot be isolated with ease during controlled hydrogenation of benzene
  done clear
  B)
   One mole each of benzene and hydrogen when reacted gives 1/3 mole of cyclohexane and 2/3 mole unreacted hydrogen
  done clear
  C)
   Hydrogenation of benzene to cyclohexane is an endothermic process
  done clear
  D)
   It is easier to hydrogenate benzene when compared to cyclohexene.
  done clear
  View Answer play_arrow

• question_answer80) Among the elements from atomic number 1 to 36, the number of elements which have an unpaired electron in their s-subshell is
  A)
  \[4\]   
  done clear
  B)
  \[7\] 
  done clear
  C)
  \[6\]   
  done clear
  D)
  \[9\]
  done clear
  View Answer play_arrow

• question_answer81) The statement that is NOT correct is
  A)
   Compressibility factor measures the deviation of real gas from ideal behavior
  done clear
  B)
   van der Waals constant a measures extent of intermolecular attractive forces for real gases
  done clear
  C)
   Critical temperature is the lowest temperature at which liquefaction of a gas first occurs
  done clear
  D)
   Boyle point depends on the nature of real gas.
  done clear
  View Answer play_arrow

• question_answer82) The correct arrangement for the ions in the increasing order of their radii is
  A)
   \[N{{a}^{+}},C{{l}^{-}},C{{a}^{2+}}\]
  done clear
  B)
   \[C{{a}^{2+}},{{K}^{+}},{{S}^{2-}}\]
  done clear
  C)
   \[N{{a}^{+}},A{{l}^{3+}},B{{e}^{2+}}\]
  done clear
  D)
   \[C{{l}^{-}},{{F}^{-}},{{S}^{2-}}\]
  done clear
  View Answer play_arrow

• question_answer83) The correct arrangement of the species in the decreasing order of the bond length between carbon and oxygen in them is
  A)
   \[CO,C{{O}_{2}},HCO_{2}^{-},CO_{3}^{2-}\]
  done clear
  B)
   \[C{{O}_{2}},HCO_{2}^{-},CO,CO_{3}^{2-}\]
  done clear
  C)
   \[CO_{3}^{2-},HCO_{2}^{-},C{{O}_{2}},CO\]
  done clear
  D)
   \[CO,CO_{3}^{2-},C{{O}_{2}},HCO_{2}^{-}\]
  done clear
  View Answer play_arrow

• question_answer84) The species that is not hydrolysed in water is
  A)
   \[{{P}_{4}}{{O}_{10}}\]           
  done clear
  B)
   \[Ba{{O}_{2}}\]
  done clear
  C)
   \[M{{g}_{3}}{{N}_{2}}\]          
  done clear
  D)
   \[Ca{{C}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer85) For the properties mentioned, the correct trend for the different species is in
  A)
   strength as Lewis acid - \[BC{{l}_{3}}>AlC{{l}_{3}}>GaC{{l}_{3}}\]
  done clear
  B)
   inert pair effect \[-Al>Ga>In\]
  done clear
  C)
   oxidising property \[-A{{l}^{3+}}>I{{n}^{3+}}>T{{l}^{3+}}\]
  done clear
  D)
   first ionization enthalpy \[-B>Al>Tl\]
  done clear
  View Answer play_arrow

• question_answer86) A correct statement is
  A)
   \[{{[Co{{(N{{H}_{3}})}_{6}}]}^{2+}}\] is paramagnetic
  done clear
  B)
   \[{{[MnB{{r}_{4}}]}^{2-}}\] is tetrahedral
  done clear
  C)
   \[{{[CoB{{r}_{2}}{{(en)}_{2}}]}^{-}}\] exhibits linkage isomerism
  done clear
  D)
   \[{{[Ni{{(N{{H}_{3}})}_{6}}]}^{2+}}\] is an inner orbital complex.
  done clear
  View Answer play_arrow

• question_answer87) lodoform reaction is answered by all, except
  A)
   \[C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-COOH\]
  done clear
  B)
   \[C{{H}_{3}}CHO\]
  done clear
  C)
   \[C{{H}_{3}}-C{{H}_{2}}-OH\]
  done clear
  D)
   \[C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}OH\]
  done clear
  View Answer play_arrow

• question_answer88) A crystalline solid \[X{{Y}_{3}}\] has ccp arrangement for its element Y. X occupies
  A)
   66% of tetrahedral voids
  done clear
  B)
   33% of tetrahedral voids
  done clear
  C)
   66% of octahedral voids
  done clear
  D)
   33% of octahedral voids.
  done clear
  View Answer play_arrow

• question_answer89) \[{{C}_{6}}{{H}_{5}}COOH\xrightarrow[2.\,\Delta ]{1.\,N{{H}_{3}}}P\xrightarrow{NaOBr}Q\] \[\xrightarrow[2.\,heart\,460K]{1.\,Conc\,{{H}_{2}}S{{O}_{4}}}R\]. R is
  A)
   o-bromosulphanilic acid
  done clear
  B)
   sulphanilamide
  done clear
  C)
   sulphanilic acid
  done clear
  D)
   p-bromosulphanilamide.
  done clear
  View Answer play_arrow

• question_answer90) The statement that is NOT correct is
  A)
   aldose or ketose sugars in alkaline medium do not isomerise
  done clear
  B)
   carbohydrates are optically acitve
  done clear
  C)
   penta acetate of glucose does not react with hydroxylamine
  done clear
  D)
   lactose has glycosidic linkage between \[{{C}_{4}}\] of glucose and \[{{C}_{1}}\] of galactose unit.
  done clear
  View Answer play_arrow

• question_answer91) Match the reactant in column-I with the reaction in column-II.

  	Column-I		Column-II
  (i)	Acetic acid	[A]	Stephen
  (ii)	Sodium phenate	[B]	Friedel-Crafts
  (iii)	Methyl cyanide	[C]	HVZ
  (iv)	Toluene	[D]	Kolbes

  A)
   \[i-C,ii-A,iii-D,iv-B\]
  done clear
  B)
   \[i-D,ii-B,iii-C,iv-A\]
  done clear
  C)
   \[i-B,ii-C,iii-A,iv-D\]
  done clear
  D)
   \[i-C,ii-D,iii-A,iv-B\]
  done clear
  View Answer play_arrow

• question_answer92) The statement that is NOT correct is
  A)
   hypo phosphorous acid reduces silver nitrate to silver
  done clear
  B)
   in solid state \[PC{{l}_{5}}\] exists as \[{{[PC{{l}_{4}}]}^{+}}{{[PC{{l}_{6}}]}^{-}}\]
  done clear
  C)
   pure phosphine is non-inflammable
  done clear
  D)
   phosphorous acid on heating disproport- ionates to give met phosphoric acid and phosphine.
  done clear
  View Answer play_arrow

• question_answer93) In which one of the pairs of ion given, there is an ion that forms a co-ordination compound with both aqueous sodium hydroxide and ammonia and an other ion that forms a co-ordination compound only with aqueous sodium hydroxide?
  A)
   \[P{{b}^{2+}},C{{u}^{2+}}\]
  done clear
  B)
   \[Z{{n}^{2+}},A{{l}^{3+}}\]
  done clear
  C)
   \[C{{u}^{2+}},Z{{n}^{2+}}\]
  done clear
  D)
   \[A{{l}^{3+}},C{{u}^{2+}}\]
  done clear
  View Answer play_arrow

• question_answer94) A crystalline solid X reacts with dil. \[HCl\] to liberate a gas Y. Y decolourises acidified \[KMn{{O}_{4}}\]. When a gas Z is slowly passed into an aqueous solution of Y, colloidal sulphur is obtained. X and Z could be, respectively
  A)
    \[N{{a}_{2}}S,S{{O}_{3}}\]
  done clear
  B)
   \[N{{a}_{2}}S{{O}_{4}},{{H}_{2}}S\]
  done clear
  C)
   \[N{{a}_{2}}S{{O}_{3}},{{H}_{2}}S\]
  done clear
  D)
   \[N{{a}_{2}}S{{O}_{4}},S{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer95) An aromatic compound A \[({{C}_{7}}{{H}_{9}}N)\] on reacting with \[NaN{{O}_{2}}/HCl\] at \[{{0}^{o}}C\] forms benzyl alcohol and nitrogen gas. The number of isomers possible for the compound A is
  A)
   \[5\]   
  done clear
  B)
   \[7\]    
  done clear
  C)
   \[3\]   
  done clear
  D)
   \[6\]
  done clear
  View Answer play_arrow

• question_answer96) The statement that is NOT correct is
  A)
   a furnace lined with Haematite is used to convert cast iron to wrought, iron.
  done clear
  B)
   collectors enhance the wettability of mineral particles during froth flotation.
  done clear
  C)
   in vapour phase refining, metal should form a volatile compound.          
  done clear
  D)
   copper from its low grade ores is extracted  by hydrometallurgy                
  done clear
  View Answer play_arrow

• question_answer97) A solution of \[1.25g\]of P in \[50g\]of water lowers freezing point by \[{{0.3}^{o}}C\]. Molar mass of P is \[{{K}_{f(water)}}=1.86K\,kg\,mo{{l}^{-1}}\]. The degree  of association of Pin water is              
  A)
   \[80%\]
  done clear
  B)
   \[60%\]
  done clear
  C)
    \[65%\]
  done clear
  D)
   \[75%\]
  done clear
  View Answer play_arrow

• question_answer98) Volume occupied by single \[CsCl\] ion pair in a crystal is \[7.014\times {{10}^{-23}}\text{ }c{{m}^{3}}\]. The smallest \[Cs-Cs\]internuclear distance is equal to length of the side of the cube corresponding to volume of one \[CsCl\] ion pair. The smallest \[Cs\] to \[Cs\] internuclear distance is nearly
  A)
   \[4.4\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  B)
   \[4.3\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  C)
   \[4\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  D)
   \[4.5\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer99) For \[C{{r}_{2}}O_{7}^{2-}+14{{H}^{+}}+6{{e}^{-}}\to 2C{{r}^{3+}}+7{{H}_{2}}O,\] \[{{E}^{o}}=1.33V\] At  \[[C{{r}_{2}}O_{7}^{2-}]=4.5\]mill mole,  \[[C{{r}^{3+}}]=15\]milli mole, E is\[1.067V\]. The pH of the solution is nearly equal to
  A)
   \[2\]    
  done clear
  B)
   \[3\]     
  done clear
  C)
   \[5\]    
  done clear
  D)
   \[4\]
  done clear
  View Answer play_arrow

• question_answer100) \[1.78g\]of an optically active L-amino acid  is treated with \[NaN{{O}_{2}}/HCl\]at \[{{0}^{o}}C\]. \[448\text{ }c{{m}^{3}}\] of nitrogen gas at STP is evolved. A sample of protein has \[0.25%\]of this amino acid by mass. The molar mass of the protein is
  A)
   \[36,500g\text{ }mo{{l}^{-1}}\]
  done clear
  B)
   \[34,500g\text{ }mo{{l}^{-1}}\]
  done clear
  C)
   \[35,400g\text{ }mo{{l}^{-1}}\]
  done clear
  D)
   \[35,600g\text{ }mo{{l}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer101) \[10g\]of a mixture of \[BaO\]and \[CaO\]requires \[100c{{m}^{3}}\]of \[2.5M\text{ }HCl\]to react completely The percentage of calcium oxide in the mixture is approximately (Given: molar mass of\[BaO=153\])
  A)
   \[52.6\]
  done clear
  B)
   \[55.1\]
  done clear
  C)
   \[44.9\]
  done clear
  D)
   \[47.4\]
  done clear
  View Answer play_arrow

• question_answer102) The ratio of heats liberated at 298 K from the combustion of one kg of coke and by burning water gas obtained from kg of coke is (Assume coke to be 100% carbon) (Given : enthalpies of combustion of  \[C{{O}_{2}},CO\]and \[{{H}_{2}}\] as \[393.5kJ\], \[285kJ\], \[285kJ\] respectively all at\[298K\]).
  A)
   \[0.79:1\]          
  done clear
  B)
   \[0.69:1\]
  done clear
  C)
   \[0.86:1\]         
  done clear
  D)
   \[0.96:1\]
  done clear
  View Answer play_arrow

• question_answer103) Impure copper containing \[Fe\], \[Au\], \[Ag\] as impurities is electrolytic ally refined. A current of \[140A\]for \[482.5s\] decreased the mass of the anode by \[22.26g\]and increased the mass of cathode by\[22.011g\]. Percentage of iron in impure copper is (Given : molar mass\[Fe=55.5g\text{ }mo{{l}^{-1}}\], molar mass\[Cu=63.54g\text{ }mo{{l}^{-1}}\])
  A)
   \[0.95\]
  done clear
  B)
   \[0.85\]
  done clear
  C)
   \[0.97\]
  done clear
  D)
   \[0.90\]
  done clear
  View Answer play_arrow

• question_answer104) \[25c{{m}^{3}}\]of oxalic acid completely neutralised \[0.064g\]of sodium hydroxide. Molarity of the oxalic acid solution is
  A)
   \[0.064\]         
  done clear
  B)
   \[0.045\]
  done clear
  C)
   \[0.015\]
  done clear
  D)
   \[0.032\]
  done clear
  View Answer play_arrow

• question_answer105) The statement that is NOT correct is
  A)
   angular quantum number signifies the shape of the orbital.
  done clear
  B)
   energies of stationary states in hydrogen like atoms is inversely proportional to the square of the principal quantum number.
  done clear
  C)
   total number of nodes for 3s orbital is three.
  done clear
  D)
   the radius of the first orbit of He+ is half that of the first orbit of hydrogen atom.
  done clear
  View Answer play_arrow

• question_answer106) For the equilibrium : \[CaC{{O}_{3(s)}}Ca{{O}_{(s)}}+C{{O}_{2(g)}};\,{{K}_{p}}=1.64atm\] at \[1000K\] \[50g\]of \[CaC{{O}_{3}}\]in a 10 litre closed vessel is heated to 1000 K. Percentage of \[CaC{{O}_{3}}\] that remains unreacted at equilibrium is (Given:\[R=0.082L\text{ }atm\text{ }{{K}^{-1}}\text{ }mo{{l}^{-1}}\])
  A)
     
  done clear
  B)
     
  done clear
  C)
     
  done clear
  D)
   \[20\]
  done clear
  View Answer play_arrow

• question_answer107) Conversion of oxygen into ozone is non- spontaneous at
  A)
   all temperatures
  done clear
  B)
   high temperature
  done clear
  C)
   room temperature
  done clear
  D)
   low temperature.
  done clear
  View Answer play_arrow

• question_answer108) Density of carbon monoxide is maximum at
  A)
   \[2atm\]and \[600K\]
  done clear
  B)
   \[0.5atm\]and \[273K\]
  done clear
  C)
   \[6atm\]and \[1092K\]
  done clear
  D)
   \[4atm\]and \[500K\].
  done clear
  View Answer play_arrow

• question_answer109) The acid strength of active methylene group in (i) \[C{{H}_{3}}COC{{H}_{2}}COO{{C}_{2}}{{H}_{5}}\] (ii) \[C{{H}_{3}}COC{{H}_{2}}C{{H}_{3}}\] (iii) \[{{C}_{2}}{{H}_{5}}OOCC{{H}_{2}}COO{{C}_{2}}{{H}_{5}}\] decreases as
  A)
   \[i>iii>ii\]      
  done clear
  B)
   \[i>ii>iii\]
  done clear
  C)
  \[ii>i>iii\]     
  done clear
  D)
   \[iii>i>ii\]
  done clear
  View Answer play_arrow

• question_answer110) A metallic oxide reacts with water to form its hydroxide, hydrogen peroxide and also liberates oxygen. The metallic oxide could be
  A)
   \[CaO\]
  done clear
  B)
   \[K{{O}_{2}}\]
  done clear
  C)
   \[Li{{O}_{2}}\]
  done clear
  D)
   \[N{{a}_{2}}{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer111) \[X\xrightarrow[\text{(Reductive)}]{Ozonolysis}Y+Z\] Y can be obtained by Etards reaction. Z undergoes disproportionation reaction with concentrated alkali. X could be
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer112) Gold sol is not
  A)
   a macromolecular colloid
  done clear
  B)
   a lyophobic colloid
  done clear
  C)
   a multimolecular colloid
  done clear
  D)
   negatively charged colloid.
  done clear
  View Answer play_arrow

• question_answer113) Carbocation as an intermediate is likely to be formed in the reaction:
  A)
   \[\text{Propene}+C{{l}_{2}}\xrightarrow{hv}2-chloropropane\]
  done clear
  B)
   \[Acetone+HCN\xrightarrow{-OH}\] \[acetonecyanohydrin\]
  done clear
  C)
   \[Ethyl\,bromide+Aq.\,KOH\xrightarrow{\Delta }\] \[ethyl\,alcohol\]
  done clear
  D)
   \[Hexane\xrightarrow{Anhy.AlC{{l}_{3}}/HCl}\]\[\text{2-methylpentane}\]
  done clear
  View Answer play_arrow

• question_answer114) For an ideal binary liquid mixture
  A)
   \[\Delta {{S}_{(mix)}}=0;\,\Delta {{G}_{(mix)}}=0\]
  done clear
  B)
   \[\Delta {{H}_{(mix)}}=0;\,\Delta {{S}_{(mix)}}<0\]
  done clear
  C)
   \[\Delta {{V}_{(mix)}}=0;\,\Delta {{G}_{(mix)}}>0\]
  done clear
  D)
   \[\Delta {{S}_{(mix)}}=0;\,\Delta {{G}_{(mix)}}<0\]
  done clear
  View Answer play_arrow

• question_answer115) For hydrogen - oxygen fuel cell at one atm and 298 K \[{{H}_{2(g)}}+\frac{1}{2}{{O}_{2(g)}}\to {{H}_{2}}{{O}_{(l)}};\,\,\Delta {{G}^{o}}=-240kJ\] \[{{E}^{o}}\] for the cell is approximately, (Given: \[F=96,500C\])
  A)
   \[2.48V\]        
  done clear
  B)
   \[1.24V\]
  done clear
  C)
   \[2.5V\]  
  done clear
  D)
   \[1.26V\]
  done clear
  View Answer play_arrow

• question_answer116) Which one of these is not known?
  A)
   \[CuC{{l}_{2}}\]         
  done clear
  B)
   \[Cu{{I}_{2}}\]
  done clear
  C)
   \[Cu{{F}_{2}}\]         
  done clear
  D)
   \[CuB{{r}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer117) The correct statement is
  A)
   the earlier members of lanthanoid series resemble calcium in their chemical properties.
  done clear
  B)
   the extent of actinoid contraction is almost the same as lanthanoid contraction.
  done clear
  C)
   in general, lanthanoids and actinoids do not show variable oxidation states.
  done clear
  D)
   \[C{{e}^{4+}}\] in aqueous solution is not known.
  done clear
  View Answer play_arrow

• question_answer118) \[P\xrightarrow[2.\,{{H}_{3}}{{O}^{+}}]{1.C{{H}_{3}}MgBr}R\xrightarrow[2.\,\Delta ]{1.\,dil\,NaOH}\] 4-methylpent-3-en-2-one P is
  A)
   Propanone    
  done clear
  B)
   Ethan amine
  done clear
  C)
   Ethane nitrile   
  done clear
  D)
   Ethanal.
  done clear
  View Answer play_arrow

• question_answer119) When \[C{{H}_{2}}=CH-O-C{{H}_{2}}-C{{H}_{3}}\]reacts with one mole of \[HI\], one of the products formed is
  A)
   ethane        
  done clear
  B)
   Ethanol
  done clear
  C)
   iodoethene    
  done clear
  D)
   ethanal.
  done clear
  View Answer play_arrow

• question_answer120) \[0.44g\]of a monohydric alcohol when added to methyl magnesium iodide in ether liberates at S.T.P., \[112c{{m}^{3}}\]of methane. With PCC the same alcohol forms a carbonyl compound that answers silver mirror test. The monohydnc alcohol is
  A)
   \[C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-C{{H}_{3}}\]
  done clear
  B)
   \[{{(C{{H}_{3}})}_{3}}C-C{{H}_{2}}OH\]
  done clear
  C)
   \[C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}\]
  done clear
  D)
   \[{{(C{{H}_{3}})}_{2}}CH-C{{H}_{2}}OH\]
  done clear
  View Answer play_arrow

• question_answer121) Floc is__
  A)
   a mesh-like structure formed by the association of bacteria and fungal filaments in sewage treatment
  done clear
  B)
   the primary sludge produced in sewage treatment
  done clear
  C)
   the effluent in primary treatment tank obtained during sewage treatment
  done clear
  D)
   a type of bio fortified food.
  done clear
  View Answer play_arrow

• question_answer122) ADA deficiency results in
  A)
   chromosomal disorders
  done clear
  B)
   increased risk of infertility
  done clear
  C)
   decrease in the yield of crop plants
  done clear
  D)
   inability of the immune system to function normally
  done clear
  View Answer play_arrow

• question_answer123) Parbhani kranti, a variety of bhindi (lady finger), is resistant to
  A)
   black rot
  done clear
  B)
   bacterial blight
  done clear
  C)
   leaf curl
  done clear
  D)
   yellow mosaic virus.
  done clear
  View Answer play_arrow

• question_answer124) The globular head of myosin contains
  A)
   ATPase enzyme
  done clear
  B)
   calcium ions in large quantities
  done clear
  C)
   ATP
  done clear
  D)
   troponin.
  done clear
  View Answer play_arrow

• question_answer125) EcoRI is
  A)
   used to join two DNA fragments
  done clear
  B)
   a restriction enzyme
  done clear
  C)
   the abbreviation for bacterium Escherichia coli    
  done clear
  D)
   a plasmid.
  done clear
  View Answer play_arrow

• question_answer126) Roquefort cheese is ripened by using a
  A)
   bacterium     
  done clear
  B)
   type of yeast
  done clear
  C)
   cyanobacteria  
  done clear
  D)
   fungus.
  done clear
  View Answer play_arrow

• question_answer127) In this diagram showing the L.S. of an embryo of grass, identify the answer having the correct combination of alphabets with the right part.
  A)

  A - Epiblast,

  B - Scutellum,

  C - Coleoptile

  D - Radicle,

  E - Coleorhiza,

  F - Shoot apex

  done clear
  B)

  A - Root cap,

  B - Coleoptile,

  C - Scutellum,

  D - Coleorhiza,

  E - Epiblast,

  F - Shoot apex

  done clear
  C)

  A - Epiblast,

  B - Radicle,

  C - Coleoptile,

  D - ScuteUum,

  E - Coleorhiza,

  F - Shoot apex

  done clear
  D)

  A - Shoot apex,

  B - Epiblast,

  C - Coleorhiza,

  D - Scutellum,

  E - Coleoptile,

  F - Radicle

  done clear
  View Answer play_arrow

• question_answer128) Mating of two varieties of a cattle breed like Red Dane which have no common ancestors on either side of their pedigree up to 4 - 6 generations is an example for
  A)
   out crossing
  done clear
  B)
   inbreeding
  done clear
  C)
   inter-specific hybridization
  done clear
  D)
   cross breeding.
  done clear
  View Answer play_arrow

• question_answer129) Identify the hormones A, B and C that are labelled in the given flow chart.
  A)
   \[A-GnRH,B-PRL,C-ICSH\]
  done clear
  B)
   \[A-GnRH,B-PRL,C-ICSH\]
  done clear
  C)
   \[A-GnRH,\text{ }B-ICSH,\text{ }C-ISH\]
  done clear
  D)
   \[A-GH,~~B-FSH,\text{ }C-LH\]
  done clear
  View Answer play_arrow

• question_answer130) Statement A: Photorespiration decreases photosynthetic output. Statement B: In photo respiratory pathway, neither ATP nor NADPH is produced.
  A)
   Statement A is correct and statement B is wrong.
  done clear
  B)
   Both the statements A and B are correct.
  done clear
  C)
   Statement B is correct and statement A is wrong.
  done clear
  D)
   Both statements A and B are wrong.
  done clear
  View Answer play_arrow

• question_answer131) Identify the incorrect statement from the following.       
  A)
   Atmospheric inputs of phosphorous through rainfall are much smaller than carbon inputs.
  done clear
  B)
   The reservoir pool for phosphorous cycle is earths crust whereas atmosphere is the reservoir pool for carbon cycle.
  done clear
  C)
   Gaseous exchanges of phosphorous between organism and environment are negligible.
  done clear
  D)
   During carbon cycle and phosphorous cycle, there is very little respiratory release of carbon and phosphorous respectively.
  done clear
  View Answer play_arrow

• question_answer132) The result of which of the following reaction experiments carried out by Avery et al. on Streptococcus pneumoniae has proved conclusively that DNA is the genetic material?
  A)
   Live R strain \[+\] DNA from S strain \[+\] RNA ase
  done clear
  B)
   Live R strain \[+\] DNA from S strain \[+\]DNA ase
  done clear
  C)
   Live R strain \[+\] Denatured DNA of S strain \[+\] protease
  done clear
  D)
   Heat killed R strain \[+\] DNA from S strain \[+\] DNAase
  done clear
  View Answer play_arrow

• question_answer133) Match the storage products listed under Column-1 with the organisms given under Column-11. Choose the appropriate option from the given choices.

  Column-I	Column-II
  A. Glycogen	p.  Sargassum
  B. Pyrenoids	q.  Nostoc
  C. Laminarin and mannitol	r.   Polysiphonia
  D. Floridean starch	s.   Spirogyra
  	t.   Agaricus

  A)
   \[A-t;\text{ }B-s;\text{ }C-p;\text{ }D-r\]
  done clear
  B)
   \[A-r;\text{ }B-s;\text{ }C-p;\text{ }D-t\]
  done clear
  C)
   \[A-q;\text{ }B-p;\text{ }C-s;\text{ }D-r\]
  done clear
  D)
   \[A-s;\text{ }B-r;\text{ }C-t;\text{ }D-q\]
  done clear
  View Answer play_arrow

• question_answer134) Identify the desirable characteristics for a plasmid used in r DNA technology from the following.

  A. Ability to multiply and express outside the host in a bioreactor

  B. A highly active promoter

  C. A site at which replication can be initiated

  D. One or more identifiable marker genes

  E. One or more unique restriction sites

  A)
   A, C, D and E only
  done clear
  B)
   A, C and E only
  done clear
  C)
   B, C, D and E only
  done clear
  D)
  B, C and E only
  done clear
  View Answer play_arrow

• question_answer135) Which compounds were used by Miller in his experiment for obtaining amino acids and other organic substances?
  A)
   Ammonia, methane, hydrogen and water vapour
  done clear
  B)
   Carbon dioxide, water vapour and methane
  done clear
  C)
   Ammonia, methane and carbon dioxide
  done clear
  D)
   Methane, ammonia, water vapour and hydrogen cyanide
  done clear
  View Answer play_arrow

• question_answer136) Which of the following is true for eutrophicated water body?
  A)
   Rich species diversity
  done clear
  B)
   High mineral content
  done clear
  C)
   Low organic content
  done clear
  D)
   High oxygen content
  done clear
  View Answer play_arrow

• question_answer137) lUDs which are used by females.
  A)
   are implanted under the skin and the release progestogen and estrogen
  done clear
  B)
   act as spermicidal jellies
  done clear
  C)
   release copper ions in the uterus that increase phagocytosis of sperm
  done clear
  D)
  block the entry of sperms into vagina.
  done clear
  View Answer play_arrow

• question_answer138) Which of the following hormones are secreted in large quantities during pregnancy in women?
  A)
   LH, estrogen and estradiol
  done clear
  B)
   hCG, progesterone, estradiol and FSH
  done clear
  C)
   hCG and hPL
  done clear
  D)
   hCG, hPL, progesterone, estrogen and LH
  done clear
  View Answer play_arrow

• question_answer139) The kind of coelom represented in the diagram given below is characteristic of
  A)
   round worm  
  done clear
  B)
   earthworm
  done clear
  C)
   tapeworm    
  done clear
  D)
   cockroach.
  done clear
  View Answer play_arrow

• question_answer140) With respect to angiosperms, identify the incorrect pair from the following.
  A)
   Primary endosperm nucleus - 3n
  done clear
  B)
   Antipodals - 2n
  done clear
  C)
   Cells of nucellus of ovule - 2n
  done clear
  D)
   Vegetative cell of male gametophyte - n
  done clear
  View Answer play_arrow

• question_answer141) Statement A: For a particular character in an individual, each gamete gets only one allele. Statement B: Chromatids of a chromosome split (separate) and move towards opposite poles during anaphase of mitosis.
  A)
   Statement A is correct and statement B is wrong.
  done clear
  B)
   Both the statements are correct and B is the reason for A.
  done clear
  C)
   Statement B is correct and statement A is wrong.
  done clear
  D)
   Both the statements are correct and B is not the reason for A.
  done clear
  View Answer play_arrow

• question_answer142) Internal bleeding, muscular pain, blockage of the intestinal passage and anaemia are some of the symptoms caused due to infection by
  A)
   Ascaris        
  done clear
  B)
   Wuchereria
  done clear
  C)
   Plasmodium
  done clear
  D)
   Trichophyton.
  done clear
  View Answer play_arrow

• question_answer143) RNA interference which is employed in making tobacco plantresistant to Meloidogyne incognita is essentially involved in
  A)
   preventing the process of replication of DNA
  done clear
  B)
   preventing the process of translation of mRNA
  done clear
  C)
   preventing the process of splicing of hnRNA
  done clear
  D)
   preventing the process of transcription.
  done clear
  View Answer play_arrow

• question_answer144) The success of mammals on earth is largely because
  A)
   they have the ability to maintain constant body temperature
  done clear
  B)
   they can conform to the changes in the environment
  done clear
  C)
   they can take care of their young ones as they have mammary glands to suckle them
  done clear
  D)
   they can reduce metabolic activity and go into a state of dormancy during unfavourable conditions in the environment.
  done clear
  View Answer play_arrow

• question_answer145) Which one of the following hormones also produces anti-inflammatory reactions in man and suppresses the immune response in addition to its primary functions?
  A)
   Thyrocalcitonin
  done clear
  B)
   Cortisol
  done clear
  C)
   Erythropoietin
  done clear
  D)
   Thymosin
  done clear
  View Answer play_arrow

• question_answer146) Match the microbial products listed under Column-1 with the related microbes given under Column-11. Choose the appropriate option from the given choices.

  Column-I	Column-II
  A. Citric acid	p.  Methanobacterium
  B. Cyclosporin	q.  Monascuspurpureus
  C. Statin	r.   Aspergillus niger
  D. Gobar gas	s.   Trichoderma polysporum
  	t.   Clostridium butylicum

  A)
   \[A-q;B-s;C-t;D-r\]
  done clear
  B)
   \[A-r;B-s;C-t;D-p\]
  done clear
  C)
   \[A-r;B-s;C-q;D-t\]
  done clear
  D)
   \[A-t;B-q;C-s;D-r\]
  done clear
  View Answer play_arrow

• question_answer147) Marchantia is considered as a heterothallic plant because it is
  A)
   monoecious   
  done clear
  B)
   heterogametic
  done clear
  C)
   dioecious      
  done clear
  D)
   bisexual.
  done clear
  View Answer play_arrow

• question_answer148) Identify the set of characteristics related to plants belonging to family Fabaceae from the following.
  A)
   Papilionaceous, corolla, axile placentation and leguminous fruit.
  done clear
  B)
   Actinomorphic flower, syncarpous ovary and marginal placentation.
  done clear
  C)
   Vexillaryaestivation of corolla, diadelphous stamens and monocarpellary, unilocular ovary.
  done clear
  D)
   Persistent calyx, epipetalous stamens and leguminous fruit.
  done clear
  View Answer play_arrow

• question_answer149) One of the following statements is incorrect with reference to biodiversity. Identify it.
  A)
   The richest reservoirs of animal and plant life (high species richness) with few or no threatened species are called biodiversity hotspots.
  done clear
  B)
   Biodiversity increases from higher altitudes to lower altitudes.
  done clear
  C)
   Biodiversity decreases from the equator to polar regions.
  done clear
  D)
   Depletion in genetic diversity of crop plants is niainly due to the introduction of better varieties with high yield, disease resistance, etc.
  done clear
  View Answer play_arrow

• question_answer150) In castor and maize plant ____.
  A)
   male and female flowers are borne by different plants
  done clear
  B)
   autogamy is prevented but not geitonogamy
  done clear
  C)
   the anthers and stigma are placed at different positions to encourage cross pollination
  done clear
  D)
   both autogamy and geitonogamy are prevented
  done clear
  View Answer play_arrow

• question_answer151) In garden pea, round shape of seeds is dominant over wrinkled shape. A pea plant heterozygous for round shape of seed is selfed and 1600 seeds produced during the cross are subsequently germinated. How many seedlings would have the parental phenotype?
  A)
   \[400\]
  done clear
  B)
   \[1600\]
  done clear
  C)
   \[1200\]
  done clear
  D)
   \[800\]
  done clear
  View Answer play_arrow

• question_answer152) Which of the following events would occur in Lac operon of E. coli when the growth medium has high concentration of lactose?
  A)
   The represser protein attaches to the promoter sequence and derepresses the operator.
  done clear
  B)
   The structural genes fail to produce polycistronic mRNA.
  done clear
  C)
   The inducer molecule binds to represser protein and RNA polymerase binds to promoter sequence.
  done clear
  D)
   The represser protein binds to RNA polymerase and prevents translation.
  done clear
  View Answer play_arrow

• question_answer153) The mature infective stages of malarial parasite which are transferred from mosquito to man are
  A)
   trophozoites   
  done clear
  B)
   sporozoites
  done clear
  C)
   gametocytes   
  done clear
  D)
   merozoites.
  done clear
  View Answer play_arrow

• question_answer154) Which one of the following refers to Aliens rule.
  A)
   An organism can move from a stressful habitat to a more hospitable area and return when the stressful period is over.
  done clear
  B)
   If the stressful conditions are localized or remain only for a short duration, an organism either migrates or suspends itself.
  done clear
  C)
   Low atmospheric pressure in higher altitudes results in altitude sickness.
  done clear
  D)
   Mammals from colder climates have shorter ears and limbs to minimize heat loss.
  done clear
  View Answer play_arrow

• question_answer155) Identify the DNA segment which is not a palindromic sequence.
  A)
   \[5GGATCC3\text{ }3GGTACC\text{ }5\]
  done clear
  B)
   \[5GAATTC\text{ }3\text{ }3\text{ }CTTAAG\text{ }5\]
  done clear
  C)
   \[5GCGGCCGCy\text{ }3GGCCGGCG5\]
  done clear
  D)
   \[5CCCGGG\text{ }3~~3GGGCCC\text{ }5\]
  done clear
  View Answer play_arrow

• question_answer156) During somatic hybridization in plants.
  A)
   the cell walls and the middle lamella are digested before fusing the cells
  done clear
  B)
   somaclones are produced in large numbers
  done clear
  C)
   crop plants with higher levels of vitamins, proteins and minerals are hybridised
  done clear
  D)
   the apical meristems are cultured to get virus-free plants.
  done clear
  View Answer play_arrow

• question_answer157) Statement A: The secretion of collaterial gland forms the egg case in cockroach. Statement B: The development in cockroach is hemimetabolous.
  A)
   Statement A is correct and statement B is wrong.
  done clear
  B)
   Both the statements A and B are correct and B is the reason for A.
  done clear
  C)
   Statement B is correct and statement A is wrong.
  done clear
  D)
   Both the statements A and B are correct and B is not the reason for A.
  done clear
  View Answer play_arrow

• question_answer158) If a plant produces flowers when exposed only to alternating periods of 5 hours light and 3 F hours dark, in a 24-hour cycle, then the plant should be a
  A)
   short-long day plant
  done clear
  B)
   short day plant
  done clear
  C)
   day neutral plant
  done clear
  D)
   long day plant.
  done clear
  View Answer play_arrow

• question_answer159) If there was no carbon dioxide in the earths atmosphere, the temperature of the earths surface would be
  A)
   less than the present level
  done clear
  B)
   same as the present level
  done clear
  C)
   dependent on the oxygen content in the atmosphere
  done clear
  D)
   more than the present level.
  done clear
  View Answer play_arrow

• question_answer160) Which one of the following is incorrect about cancer cells?
  A)
  They exhibit mass proliferation.
  done clear
  B)
   They exhibit the property of contact inhibition.
  done clear
  C)
   They are produced when cellular oncogenes of normal cells are activated.
  done clear
  D)
   They are metastatic.
  done clear
  View Answer play_arrow

• question_answer161) The centrosome duplicates during the
  A)
   G2 - phase of cell cycle
  done clear
  B)
   S -phase of cell cycle
  done clear
  C)
   Prophase of cell cycle
  done clear
  D)
   Gi - phase of cell cycle.
  done clear
  View Answer play_arrow

• question_answer162) Match the items listed under Column-1 with those given under Column-11. Choose the appropriate option from the given choices.

  Column-I	Column-II
  A. Residual	p. 4000 ml - 4600 ml volume (RV)
  B. Inspiratory Reserve Volume (IRV)	q. 1100 ml -1200 ml
  C. Vital capacity (VC)	r.   1000 ml - 1100 ml
  D. Expiratory Reserve Volume (ERV)	s.  3000 ml - 3500 ml
  E. Inspiratory	t.   2500 ml - 3000 ml capacity (1C)

  A)
   A-t   B-q   C-s D- r E-p
  done clear
  B)
   A-q B-r   C-s  D- t  E-p
  done clear
  C)
   A- q  B-t    C-p D- r  E- s
  done clear
  D)
   A-r  B-t   C-p   D-q E-s
  done clear
  View Answer play_arrow

• question_answer163) Which of the following statements is correct?
  A)
   The core of cilium or flagellum is the basal body.
  done clear
  B)
   Elaioplasts store starch whereas aleuroplasts store proteins.
  done clear
  C)
   Membranous extensions into the cytoplasm in cyanobacteria which contain pigments are called chromatophores.
  done clear
  D)
   Acrocentric chromosomes have only one arm.
  done clear
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• question_answer164) Sickle cell anaemia is caused due to the substitution of
  A)
   valine at the 6th position of beta globin chain by glutamine
  done clear
  B)
   valine at the 6th position of alpha globin chain by glutamic acid
  done clear
  C)
   glycine at the 6th position of alpha globin chain by glutamic acid
  done clear
  D)
   glutamic acid at the 6th position of beta globin chain by valine.
  done clear
  View Answer play_arrow

• question_answer165) Statement A: The primary transcript produced in eukaryotes is translated without undergoing any modification or processing. Statement B: The hnRNA in humans has exons and introns.
  A)
   Statement B is correct and statement A is wrong.
  done clear
  B)
   Both the statements A and B are correct.
  done clear
  C)
   Statement A is correct and statement B is wrong.
  done clear
  D)
   Both the statements A and B are wrong.
  done clear
  View Answer play_arrow

• question_answer166) Knee joint is an example for
  A)
   pivot joint
  done clear
  B)
   ball and socket joint
  done clear
  C)
   gliding joint   
  done clear
  D)
   hinge joint.
  done clear
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• question_answer167) Carefully read the following reactions carried out by nitrogen fixing bacteria. Identify the statement about these equations which is not true. \[2N{{H}_{3}}+3{{O}_{2}}+2NO_{2}^{-}+2{{H}^{+}}2{{H}_{2}}O\] ...[A] \[2NO_{2}^{-}+{{O}_{2}}\to 2NO_{3}^{-}\]...[B]
  A)
   Both the steps [A] and [B] can be called nitrification.
  done clear
  B)
   Step [A] is carried out by Nitrosomonas or Nitrococcus.
  done clear
  C)
   Both the steps occur only in photoauto- trophs.
  done clear
  D)
   Step [B] is carried out by Nitrobacter.
  done clear
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• question_answer168) Match the vegetative propagules listed under Column-1 with the plants given under Column-11 choose the appropriate option from the given choices.

  Column-I	Column-II
  A. Rhizome	p.  Agave
  B. Offset	q. Bryophyllum
  C. Sucker	r.   Ginger
  D. Leaf buds	s.  Chrysanthemum
  	t.   Eichhornia

  A)
  \[A-r;\text{ }B-t;\text{ }C-s;\text{ }D-q\]
  done clear
  B)
  \[A-r;B-s;\text{ }C-p;\text{ }D-q\]
  done clear
  C)
  \[A-q;\text{ }B-p;\text{ }C-t;\text{ }D-s\]
  done clear
  D)
  \[A-s;B-t;\text{ }C-q;\text{ }D-r\]
  done clear
  View Answer play_arrow

• question_answer169) Which one of the following causes population explosion?
  A)
   Decrease in infant mortality rate and increase in death rate.                
  done clear
  B)
   Decrease in death rate, maternal mortality rate and infant mortality rate.
  done clear
  C)
   Decrease in infant mortality rate and decrease in the number of people in reproductive age.
  done clear
  D)
   Decrease in death rate and increase in maternal mortality rate.
  done clear
  View Answer play_arrow

• question_answer170) ___ are the most abundant proteins in the living world.
  A)
   PEPcase of plants and keratin of animals
  done clear
  B)
   Ribozyme of plants and collagen of animals
  done clear
  C)
   Alcohol dehydrogenase of plants and melanin of animals
  done clear
  D)
   RuB is CO of plants and collagen of animals
  done clear
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• question_answer171) One of the chief reasons among the following for the depletion in the number of species making it endangered is
  A)
   over-hunting and poaching
  done clear
  B)
   greenhouse effect
  done clear
  C)
   competition and predatioh      
  done clear
  D)
   habitat destruction.
  done clear
  View Answer play_arrow

• question_answer172) In humans, what is the ratio of number of gametes produced from one male primary sex cell to the number of gametes produced from one female primarysex cell?
  A)
   \[1:4\]
  done clear
  B)
   \[1:1\]
  done clear
  C)
   \[4:1\]
  done clear
  D)
   \[1:3\]
  done clear
  View Answer play_arrow

• question_answer173) Identify the incorrect statement from the following.
  A)
   Pyramid of biomass in sea is generally inverted as the biomass of fish far exceeds that of phytoplanktons.
  done clear
  B)
   Pyramid of energy is mostly upright, but sometimes it may be inverted.
  done clear
  C)
   Food chains are generally short with few trophic levels as only 10% of the energy is transferred to each trophic level from the lower trophic level.
  done clear
  D)
   Pyramids of number and biomass may be either upright or inverted.
  done clear
  View Answer play_arrow

• question_answer174) Match the organic compounds listed under Column-1 with the explanation given under Column-11. Choose the appropriate option from the given choices.

  Column-I	Column-II
  A. Phosphoenol pyruvate (PEP)	p. 6-carbon compound
  B. Ribulose biphosphate (RuBP)	q. 2-carbon compound
  C. Oxaloacetic acid (OAA)	r.  4-carbon compound
  D. Acetyl co-enzyme-A	s. 5-carbon compound
  	t.  3-carbon compound

  A)
   \[A-t;\text{ }B-s;\text{ }C-r;\text{ }D-q\]
  done clear
  B)
   \[A-r;\text{ }B-s;\text{ }C-t;\text{ }D-p\]
  done clear
  C)
   \[A-t;\text{ }B-p;\text{ }C-q;\text{ }D-r\]
  done clear
  D)
   \[A-q;\text{ }B-r;\text{ }C-s;\text{ }D-t\]
  done clear
  View Answer play_arrow

• question_answer175) Downs syndrome is an example for
  A)
   syndrome caused due to gene mutation
  done clear
  B)
   aneuploidy of sex chromosome
  done clear
  C)
   loss of one sex - chromosome from the diploid set
  done clear
  D)
   aneuploidy of autosome.
  done clear
  View Answer play_arrow

• question_answer176) The interaction between the organisms of one of the following pairs is an example for commensalism.
  A)
   Cattle or sheep and grass
  done clear
  B)
   Wasps and fig tree
  done clear
  C)
   Orchid and mango tree
  done clear
  D)
   Cuckoo and crow
  done clear
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• question_answer177) The germ pores in the pollen grain are the regions
  A)
   which are made upoflignin and suberin
  done clear
  B)
   that can withstand high temperature and strong acids and alkalies
  done clear
  C)
   which lack sporopollenin
  done clear
  D)
   through which sperms are released into the female gametophyte.
  done clear
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• question_answer178) Heroin is
  A)
   commonly called coke or crack
  done clear
  B)
   a cannabinoid
  done clear
  C)
   used to treat mental illnesses like depression and insomnia
  done clear
  D)
   diacetylmorphine (chemically).
  done clear
  View Answer play_arrow

• question_answer179) Thorns of Bougainvillea and tendrils of Cucurbita are examples for
  A)
   adaptive radiation                 
  done clear
  B)
   convergent evolution
  done clear
  C)
   co-evolution
  done clear
  D)
   divergent evolution.
  done clear
  View Answer play_arrow

• question_answer180) Some of the steps of DNA fingerprinting are given below. Identify the correct sequence from the options given.

  A. Electrophoresis of DNA fragments

  B. Hybridization with DNA probe

  C. Digestion of DNA by RENs

  D. Autoradiography

  E. Blotting of DNA fragments to nitrocellulose membrane

  A)
   \[C-A-B-E-D\]
  done clear
  B)
   \[C-A-E-B-D\]
  done clear
  C)
   \[A-E-C-B-D\]
  done clear
  D)
   \[A-C-E-D-B\]
  done clear
  View Answer play_arrow