Solved papers for DUMET Medical DUMET Medical Solved Paper-2005

done DUMET Medical Solved Paper-2005 Total Questions - 200

• question_answer1) SI unit of magnetic flux is:
  A)
   tesla            
  done clear
  B)
   oersted
  done clear
  C)
   weber        
  done clear
  D)
   Gauss
  done clear
  View Answer play_arrow

• question_answer2) A body of mass m is moving towards east and another body of equal mass is moving towards north. If after collision both stick together, their speed after collision would be:
  A)
   \[v\]                
  done clear
  B)
   \[v/2\]
  done clear
  C)
   \[\sqrt{2}v\]         
  done clear
  D)
   \[v/2\sqrt{2}\]
  done clear
  View Answer play_arrow

• question_answer3) A body of mass 1 kg is moving in a vertical circular path of radius 1 m. The difference between the kinetic energies at its highest and lowest position is :
  A)
   20 J         
  done clear
  B)
   10 J
  done clear
  C)
   \[4\sqrt{5}J\]       
  done clear
  D)
   10\[(\sqrt{5}-1)J\]
  done clear
  View Answer play_arrow

• question_answer4) Across each of two capacitors of capacitance \[1\mu F,\]a potential difference of 10 V is applied. Then positive plate of one is connected to the negative plate of the other, and negative plate of one is connected to the positive plate of the other. After contact:
  A)
   charge on each is zero
  done clear
  B)
   charge on each is same but non-zero
  done clear
  C)
   charge on each is different but non-zero
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer5) Magnification of a compound microscope is 30. Focal length of eyepiece is 5 cm and the image is formed at a distance of distinct vision 25 cm. The magnification of the objective lens is :
  A)
   6               
  done clear
  B)
   5
  done clear
  C)
   7.5            
  done clear
  D)
   10
  done clear
  View Answer play_arrow

• question_answer6) Kirchhoffs law of junction, \[\sum I=0,\] is based on:
  A)
   conservation of energy
  done clear
  B)
   conservation of charge
  done clear
  C)
   conservation of energy as well as charge
  done clear
  D)
   conservation of momentum
  done clear
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• question_answer7) Calculate the amount of heat (in calories) required to convert 5 g of ice at \[{{0}^{o}}C\] to steam at \[{{100}^{o}}C\].
  A)
   3100         
  done clear
  B)
   3200
  done clear
  C)
   3600         
  done clear
  D)
   4200
  done clear
  View Answer play_arrow

• question_answer8) A transverse wave is expressed as, \[y={{y}_{0}}\sin \,2\pi \,ft\]. For what value of \[\lambda .\] maximum particle velocity equals to 4 times the wave velocity?
  A)
   \[{{y}_{0}}\pi /2\]
  done clear
  B)
   \[2{{y}_{0}}\pi \]
  done clear
  C)
   \[{{y}_{0}}\pi \]  
  done clear
  D)
   \[{{y}_{0}}\pi /4\]
  done clear
  View Answer play_arrow

• question_answer9) Two bodies are thrown up at angles of \[{{40}^{o}}\] and \[{{60}^{o}}\] respectively, with the horizontal, if both bodies attain same vertical height, then ratio of velocities with which these are thrown is :
  A)
   \[\sqrt{2/3}\]        
  done clear
  B)
   \[2/\sqrt{3}\]
  done clear
  C)
   \[\sqrt{3}/2\]         
  done clear
  D)
   \[\sqrt{3}/2\]
  done clear
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• question_answer10) Charges 4 Q, q and Q are placed along x-axis at position \[x=o,x=l/2\] and\[x=l,\] respectively. Find the value of q, so that force on charge Q is zero.
  A)
   \[Q\]               
  done clear
  B)
   \[\frac{Q}{2}\]
  done clear
  C)
   \[-\frac{Q}{2}\]             
  done clear
  D)
   \[-Q\]
  done clear
  View Answer play_arrow

• question_answer11) A ray falls on a prism ABC.(AB = BC) and travels as shown in figure. The least value of refractive index of material of the prism, should be:
  A)
   1.5            
  done clear
  B)
   \[\sqrt{2}\]
  done clear
  C)
   1.33           
  done clear
  D)
   \[\sqrt{3}\]
  done clear
  View Answer play_arrow

• question_answer12) Escape velocity from a planet is \[{{V}_{e}}\]. If its mass is increased to 8 times and its radius is increased to 2 times, then the new escape velocity would be:
  A)
   \[{{V}_{e}}\]          
  done clear
  B)
   \[\sqrt{2}{{v}_{e}}\]
  done clear
  C)
   \[2{{v}_{e}}\]          
  done clear
  D)
   \[2\sqrt{2}{{v}_{e}}\]
  done clear
  View Answer play_arrow

• question_answer13) A body takes time t to reach the bottom of an inclined plane of angle \[\theta \] with the horizontal. If the plane is made rough, time taken now is it. The coefficient of friction of the rough surface is:
  A)
   \[\frac{3}{4}\tan \theta \]
  done clear
  B)
   \[\frac{2}{3}\tan \theta \]
  done clear
  C)
   \[\frac{1}{4}\tan \theta \]
  done clear
  D)
   \[\frac{1}{2}\tan \theta \]
  done clear
  View Answer play_arrow

• question_answer14)   Two small charged spheres A and B have charges \[10\,\mu \,C\] and \[40\,\mu \,C\], respectively and are held at a separation of 90 cm from each other At what distance from A, electric intensity would be zero?
  A)
   22.5cm      
  done clear
  B)
   18cm
  done clear
  C)
   36 cm       
  done clear
  D)
   30 cm
  done clear
  View Answer play_arrow

• question_answer15)  50 tuning forks are arranged in increasing order of their frequencies such that each gives 4 beats/s with its previous tuning fork. If the frequency of the last fork is octave of the First, then the frequency of the first tuning fork is :
  A)
   200 Hz       
  done clear
  B)
   204 Hz
  done clear
  C)
   196 Hz       
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer16) In a cyclotron, if a deuteron can gain an energy of 40MeV, then a proton can gain an  energy of:
  A)
   40MeV      
  done clear
  B)
   80MeV
  done clear
  C)
   20MeV      
  done clear
  D)
   60MeV
  done clear
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• question_answer17) Graph between velocity and displacement of a panicle, executing SHM is :
  A)
   a straight line  
  done clear
  B)
   a parabola
  done clear
  C)
   a hyperbola    
  done clear
  D)
   an ellipse
  done clear
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• question_answer18) In the nuclear reaction, \[_{72}{{X}^{180}}\xrightarrow{-\alpha }Y\xrightarrow{-\beta }Z\xrightarrow{-\alpha }A\xrightarrow{-\gamma }p\]the atomic mass and atomic number of P are, respectively :
  A)
   170, 69       
  done clear
  B)
   172, 69
  done clear
  C)
   172,70       
  done clear
  D)
   170,70
  done clear
  View Answer play_arrow

• question_answer19) A radioactive substance has activity 64 times higher than the required normal level. If \[{{T}_{1}}_{/2}=2h,\] then the time after which it should be possible to work with it, is :
  A)
   16 h           
  done clear
  B)
   6h
  done clear
  C)
   10 h           
  done clear
  D)
   12 h
  done clear
  View Answer play_arrow

• question_answer20) An electron, moving in a uniform magnetic field of induction of intensity B, has its radius directly proportional to :
  A)
   its charge      
  done clear
  B)
   magnetic field
  done clear
  C)
   speed         
  done clear
  D)
   none of these
  done clear
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• question_answer21) The apparent frequency in Dopplers effect does not depend upon :
  A)
   speed of the observer
  done clear
  B)
   distance between observer and source
  done clear
  C)
   speed of the source
  done clear
  D)
   frequency from the source
  done clear
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• question_answer22) Two simple pendulums whose lengths are 100 cm and 121 cm are suspended side by side. Their bobs are pulled together and the released. After how many minimum oscillations of the longer pendulum, will the two be in phase again?
  A)
   11            
  done clear
  B)
   10
  done clear
  C)
   21            
  done clear
  D)
   20
  done clear
  View Answer play_arrow

• question_answer23) If percentage change in current through resistor is 1%, then the change in power through it would be :
  A)
   1%          
  done clear
  B)
   2%
  done clear
  C)
   1.7%         
  done clear
  D)
   0.5%
  done clear
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• question_answer24) Three identical bulbs are connected in series and these together dissipate a power P. If now the bulbs are connected in parallel, then a power dissipated will be :
  A)
   P/3          
  done clear
  B)
   3P
  done clear
  C)
   9P          
  done clear
  D)
   P/9
  done clear
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• question_answer25) Acceleration due to gravity:
  A)
   decreases from equator to poles
  done clear
  B)
   decreases from poles to equator
  done clear
  C)
   is maximum at the centre of the earth
  done clear
  D)
   is maximum at the equator
  done clear
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• question_answer26) Two bodies having masses \[{{m}_{1}}=40\,g\] and \[{{m}_{2}}=60\,g\] are attached to the ends of a string of negligible mass and suspended from massless pulley. The acceleration of the bodies is:
  A)
   \[1\,m/{{s}^{2}}\]         
  done clear
  B)
   \[2\,\,m/{{s}^{2}}\]
  done clear
  C)
   \[0.4\,\,m/{{s}^{2}}\]       
  done clear
  D)
   \[4\,\,m/{{s}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer27) A block is moving up an inclined plane of inclination \[{{60}^{o}}\] with velocity of 20 m/s and stops after 2s. If \[g=10\,m/{{s}^{2}}\], then the approximate value of coefficient of friction is
  A)
   3             
  done clear
  B)
   3.3
  done clear
  C)
   0.27          
  done clear
  D)
   0.33
  done clear
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• question_answer28) A coin placed on a rotating turntable just slips, if it is placed at a distance of 8 cm from the centre. If angular speed of the turntable is doubled, it will just slip at a distance of:   
  A)
   1 cm          
  done clear
  B)
   2 cm
  done clear
  C)
   4 cm          
  done clear
  D)
   8 cm
  done clear
  View Answer play_arrow

• question_answer29) When a man increases his speed by 2 m/s, he finds that his kinetic energy is doubled, the original speed of the man is :
  A)
   \[(2\sqrt{2}-1)m/s\]
  done clear
  B)
   \[(2\sqrt{2}+1)m/s\]
  done clear
  C)
   \[4.5\,m/s\]       
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer30) A ball falling freely from a height of 4.9 m/s hits a horizontal surface. If \[e\frac{3}{4},\] then the ball will hit the surface second time after :
  A)
   0.5 s           
  done clear
  B)
   1.5 s
  done clear
  C)
   3.5 s          
  done clear
  D)
   3.4 s
  done clear
  View Answer play_arrow

• question_answer31) The distance between the sun and the earth be r, then the angular momentum of the earth around the sun is proportional to :
  A)
   \[\sqrt{r}\]  
  done clear
  B)
   \[{{r}^{3/2}}\]
  done clear
  C)
  \[r\]              
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer32) A body executing SHM has its velocity 10 cm/s and 7 cm/s, when its displacements from the mean position are 3 cm and 4 cm, respectively The length of path is :
  A)
   10cm       
  done clear
  B)
   9.5cm
  done clear
  C)
   4cm        
  done clear
  D)
   11.36cm
  done clear
  View Answer play_arrow

• question_answer33) A 700 g solid cube having an edge of length 10 cm floats in water. The volume of cube outside water is:
  A)
   \[2.4\,c{{m}^{3}}\]  
  done clear
  B)
   \[4.8\,c{{m}^{3}}\]
  done clear
  C)
   \[300\,c{{m}^{3}}\]
  done clear
  D)
   \[500\,c{{m}^{3}}\]
  done clear
  View Answer play_arrow

• question_answer34) A 1m long steel wire of cross-sectional area \[1\,m{{m}^{2}}\] is extended by 1 mm. If\[Y=2\times {{10}^{11}}N/{{m}^{2}}\], then the work done is :
  A)
   0.1 J           
  done clear
  B)
   0.2 J
  done clear
  C)
   0.3 J            
  done clear
  D)
   0.4 J
  done clear
  View Answer play_arrow

• question_answer35) The slit width, when a light of wavelength \[6500\overset{\text{o}}{\mathop{\text{A}}}\,\] is incident on a slit, if first minima for red light is at \[{{30}^{o}}\], is:
  A)
   \[1\times {{10}^{-6}}\,m\]    
  done clear
  B)
   \[5.2\times {{10}^{-6}}\,m\]
  done clear
  C)
   \[1.3\times {{10}^{-6}}\,m\] 
  done clear
  D)
   \[2.6\times {{10}^{-6}}\,m\]
  done clear
  View Answer play_arrow

• question_answer36) A light source approaches the observer with velocity 0.5c. Dopplers shift for light of wavelength \[5500\,\overset{o}{\mathop{A}}\,\] is :
  A)
   \[616\,\overset{o}{\mathop{A}}\,\]
  done clear
  B)
   \[616\,\overset{o}{\mathop{A}}\,\]
  done clear
  C)
   \[5500\,\overset{o}{\mathop{A}}\,\]
  done clear
  D)
   \[6160\,\overset{o}{\mathop{A}}\,\]
  done clear
  View Answer play_arrow

• question_answer37) A charged particle moves in an electric field from A to B then from B to A :
  A)
   If \[{{W}_{AB}}>{{W}_{BA,}}\] then the field is conservative
  done clear
  B)
   If \[{{W}_{AB}}+{{W}_{BA}}=0\], then the field is conservative
  done clear
  C)
   If \[{{W}_{AB}}+{{W}_{BA}}>0\], then the field is conservative
  done clear
  D)
   If \[{{W}_{AB}}={{W}_{BA}}\], then the field is conservative
  done clear
  View Answer play_arrow

• question_answer38) A solid metal sphere of radius 50 cm carries a charge\[25\times {{10}^{-10}}C\]. The electrostatic potential at a distance of 20 cm from the centre will be:
  A)
   25V          
  done clear
  B)
   15V
  done clear
  C)
   35V          
  done clear
  D)
   45V
  done clear
  View Answer play_arrow

• question_answer39) Two plates (area = S) charged to \[+{{q}_{1}}\] and \[+{{q}_{2}}({{q}_{2}}<{{q}_{1}})\] brought closer to form a capacitor of capacitance C. The potential difference across the plates is:
  A)
   \[\frac{{{q}_{1}}-{{q}_{2}}}{2C}\]
  done clear
  B)
   \[\frac{{{q}_{1}}-{{q}_{2}}}{C}\]
  done clear
  C)
   \[\frac{{{q}_{1}}-{{q}_{2}}}{4C}\]
  done clear
  D)
   \[\frac{2({{q}_{1}}-{{q}_{2}})}{C}\]
  done clear
  View Answer play_arrow

• question_answer40) What is the drift velocity of electrons, if the current flowing through a copper wire of 1 mm diameter is 1.1A? Assume that each atom of copper contributes one electron. (Given, density of \[Cu=9\,\,g/c{{m}^{3}}\] and atomic weight of \[Cu=63\])
  A)
   0.3mm/s      
  done clear
  B)
   0.Smm/s
  done clear
  C)
   0.lmm/s      
  done clear
  D)
   0.2mm/s
  done clear
  View Answer play_arrow

• question_answer41) A uniform magnetic field is at right angle to the direction of motion of proton. As a result, the proton describes a circular path of radius 2.5 cm. If the speed of proton is doubled, then the radius of the circular path will be :
  A)
   0.5cm       
  done clear
  B)
   2.5cm
  done clear
  C)
   5.0cm       
  done clear
  D)
   7.5cm
  done clear
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• question_answer42) An electron accelerated through a potential difference enters into a uniform transverse magnetic field and experiences a force F. If the accelerating potential is increased to 2 V, the electron in the same magnetic field will experience a force :
  A)
   \[F\]             
  done clear
  B)
   \[F/2\]
  done clear
  C)
   \[\sqrt{2}F\]           
  done clear
  D)
   \[2F\]
  done clear
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• question_answer43) The certain amount of current when flowing in a properly set tangent galvanometer, produces a deflection of \[{{45}^{o}}\]. The current be reduced by a factor of \[\sqrt{3}\], the deflection would :
  A)
   decrease by \[{{30}^{o}}\]
  done clear
  B)
   decrease by \[{{15}^{o}}\]
  done clear
  C)
   increase by \[{{15}^{o}}\]
  done clear
  D)
   increase by \[{{30}^{o}}\]
  done clear
  View Answer play_arrow

• question_answer44) If a current of 3 A flowing in the primary coil is reduced to zero in 0.01 s, then the induced emf in the secondary coil is 1500 V. The mutual inductance between the two coils is :
  A)
   0.5 H           
  done clear
  B)
   5H
  done clear
  C)
   1.5H            
  done clear
  D)
   10 H
  done clear
  View Answer play_arrow

• question_answer45) In order to obtain time constant of 10 s in an R - C circuit containing a resistance of \[{{10}^{3}}\,\Omega \]the capacity of the condenser should be :
  A)
   \[10\mu F\]         
  done clear
  B)
   \[100\mu F\]
  done clear
  C)
   \[1000\mu F\]       
  done clear
  D)
   \[10000\mu F\]
  done clear
  View Answer play_arrow

• question_answer46) An a-particle when accelerated through a potential difference of V volt has a wavelength \[\lambda \] associated with it. In order to have same \[\lambda \]  by what potential difference a proton must be accelerated?
  A)
   8V            
  done clear
  B)
   6V
  done clear
  C)
   4V            
  done clear
  D)
   12V
  done clear
  View Answer play_arrow

• question_answer47) Hailstone at \[{{0}^{o}}C\] falls from a height of 1 km on an insulating surface converting whole of its kinetic energy into heat. What part of it will melt? \[(g=10\,m/{{s}^{2}})\] (Latent heat of ice \[=3.34\times {{10}^{5}}J/kg\])
  A)
   \[\frac{1}{33}\]
  done clear
  B)
   \[\frac{1}{18}\]
  done clear
  C)
   \[\frac{3}{3}\times {{10}^{-4}}\]       
  done clear
  D)
   All of it will melt
  done clear
  View Answer play_arrow

• question_answer48) At \[{{27}^{o}}C\], a motor car tyre has pressure of 2 atm. The temperature at which the tyre suddenly burst will be : (Given, \[{{\gamma }_{air}}=1.4\])
  A)
   246.1K       
  done clear
  B)
   250 K
  done clear
  C)
   290K         
  done clear
  D)
   248 K
  done clear
  View Answer play_arrow

• question_answer49) A flat mirror revolves at a constant angular velocity making 2rev/s. With what velocity will a light spot move along a spherical screen with a radius of 10 m, if the mirror is at a centre of curvature of the screen?
  A)
   251.2 m/s    
  done clear
  B)
   261.2m/s
  done clear
  C)
   .271.2m/s    
  done clear
  D)
   241.2m/s
  done clear
  View Answer play_arrow

• question_answer50) A vessel consists of two plane mirrors at right angle (as shown in figure). The vessel is filled with water. The total deviation in incident ray  
  A)
   \[{{0}^{o}}\]              
  done clear
  B)
   \[{{90}^{o}}\]
  done clear
  C)
   \[{{180}^{o}}\]          
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer51) Which of the following is not an actinide?
  A)
   Curium       
  done clear
  B)
   Californium
  done clear
  C)
   Uranium      
  done clear
  D)
   Terbium
  done clear
  View Answer play_arrow

• question_answer52) Europium is :
  A)
   s-block element
  done clear
  B)
   p-block element
  done clear
  C)
   d-block element
  done clear
  D)
   \[f\]-block element
  done clear
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• question_answer53) For an electron, if the uncertainty in velocity is Av, the uncertainty in its position \[\Delta v\], the uncertainty in its position \[(\Delta x)\] is given by :
  A)
   \[\frac{hm}{4\pi \Delta v}\]
  done clear
  B)
   \[\frac{4\pi }{hm\Delta v}\]
  done clear
  C)
   \[\frac{h}{4\pi m\Delta v}\]
  done clear
  D)
   \[\frac{h\pi m}{h\Delta v}\]  
  done clear
  View Answer play_arrow

• question_answer54) The reagent in Friedel-Crafts reaction is :
  A)
   pyridine      
  done clear
  B)
   \[RCOCl\]
  done clear
  C)
   \[RCOOH\]
  done clear
  D)
   \[HCl\]
  done clear
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• question_answer55) The \[{{K}_{sp}}\] of \[Mg{{(OH)}_{2}}\] is \[1\times {{10}^{-12}}.0.001\,Mg\]\[{{(OH)}_{2}}\]  will precipitate at the limited pH :
  A)
   3              
  done clear
  B)
   9
  done clear
  C)
   5               
  done clear
  D)
   8
  done clear
  View Answer play_arrow

• question_answer56) Equation of Boyles law is :
  A)
   \[\frac{dP}{P}=-\frac{dV}{V}\]    
  done clear
  B)
   \[\frac{dP}{P}=+\frac{dV}{V}\]
  done clear
  C)
   \[\frac{{{d}^{2}}P}{P}=-\frac{dV}{dT}\]
  done clear
  D)
   \[\frac{{{d}^{2}}P}{P}=+\frac{{{d}^{2}}V}{dT}\]
  done clear
  View Answer play_arrow

• question_answer57) A radioactive sample is emitting 64 times radiations than non-hazardous limit. If its half life is 2h, after what time it becomes non-hazardous?
  A)
   16 h           
  done clear
  B)
   12 h
  done clear
  C)
   8h            
  done clear
  D)
   4h
  done clear
  View Answer play_arrow

• question_answer58) A metal surface is exposed to solar radiations:
  A)
   the emitted electrons have energy less than a maximum value of energy depending upon frequency of incident radiations
  done clear
  B)
   the emitted electrons have energy less than maximum value of energy depending . upon intensity of incident radiations
  done clear
  C)
   the emitted electrons have zero energy
  done clear
  D)
   the emitted electrons have energy equal to energy of photons of incident light
  done clear
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• question_answer59) Which of the following transitions have minimum wavelengths?
  A)
   \[{{n}_{4}}\to {{n}_{1}}\]         
  done clear
  B)
   \[{{n}_{2}}\to {{n}_{1}}\]
  done clear
  C)
   \[{{n}_{4}}\to {{n}_{2}}\]         
  done clear
  D)
   \[{{n}_{3}}\to {{n}_{1}}\]
  done clear
  View Answer play_arrow

• question_answer60) Orbital is :
  A)
   circular path around the nucleus in which the electrons revolves
  done clear
  B)
   space around the nucleus where the probablity of finding the electron is maximum
  done clear
  C)
   amplitude of electron wave
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer61) Number of unpaired electrons in \[M{{n}^{4+}}\] is :
  A)
   3               
  done clear
  B)
   5
  done clear
  C)
   6               
  done clear
  D)
   4
  done clear
  View Answer play_arrow

• question_answer62) Which of the following sequence is correct as per aufbau principle?
  A)
   \[3s<3d<4s<4p\]
  done clear
  B)
   \[1s<2p<4s<3d\]
  done clear
  C)
   \[2s<5s<4p<5d\]
  done clear
  D)
   \[2s<2p<3d<3p\]
  done clear
  View Answer play_arrow

• question_answer63) Ionic compounds are formed most easily with:
  A)
   low electron affinity, high ionisation energy
  done clear
  B)
   high electron affinity, low ionisation energy
  done clear
  C)
   low electron affinity, low ionisation energy
  done clear
  D)
   high electron affinity, high ionisation energy
  done clear
  View Answer play_arrow

• question_answer64) The enthalpy change \[(\Delta H)\] for the neutralisation of \[M\,\,HCl\] by caustic potash in dilute solution at 298 K is :
  A)
   68 kJ          
  done clear
  B)
   65 kJ
  done clear
  C)
   57.3 kJ        
  done clear
  D)
   50 kJ
  done clear
  View Answer play_arrow

• question_answer65) Which of the following is not hydrolysed?
  A)
   \[AsC{{l}_{3}}\]         
  done clear
  B)
   \[P{{F}_{3}}\]
  done clear
  C)
   \[SbC{{l}_{3}}\]
  done clear
  D)
   \[N{{F}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer66) Which of the following gas is linear?
  A)
   \[C{{O}_{2}}\]
  done clear
  B)
   \[S{{O}_{2}}\]
  done clear
  C)
   \[N{{O}_{2}}\]
  done clear
  D)
   \[S{{O}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer67) \[N{{H}_{4}}COON{{H}_{2}}(s)2N{{H}_{3}}(g)+C{{O}_{2}}(g)\]   if equilibrium pressure is 3 aim for the above reaction. \[{{K}_{p}}\] for the reaction is:
  A)
   4             
  done clear
  B)
   27
  done clear
  C)
   4/27          
  done clear
  D)
   1/27
  done clear
  View Answer play_arrow

• question_answer68) Number of isomeric primary amines obtained from \[{{C}_{4}}{{H}_{11}}N\] are :
  A)
   3               
  done clear
  B)
   4
  done clear
  C)
   5              
  done clear
  D)
   6
  done clear
  View Answer play_arrow

• question_answer69) If hydrogen electrode dipped in 2 solution of \[pH=3\] and\[pH=6\] and salt bridge is connected the emf of resulting cell is:
  A)
   0,177V        
  done clear
  B)
  - 0.3V
  done clear
  C)
   0.052V        
  done clear
  D)
   0.104V
  done clear
  View Answer play_arrow

• question_answer70) A radioactive nucleus will not emit:
  A)
   alpha and beta rays simultaneously
  done clear
  B)
   beta and gamma rays simultaneously
  done clear
  C)
   gamma and alpha rays
  done clear
  D)
   gamma rays only
  done clear
  View Answer play_arrow

• question_answer71) In face centred cubic unit cell edge length is:
  A)
   \[\frac{4}{\sqrt{3}}r\]
  done clear
  B)
   \[\frac{4}{\sqrt{2}}r\]
  done clear
  C)
   \[2\,r\]
  done clear
  D)
   \[\frac{\sqrt{3}}{2}\,r\]
  done clear
  View Answer play_arrow

• question_answer72) If the \[Z{{n}^{2+}}/Zn\] electrode is diluted to 100 times than the change in emf:
  A)
   increase of 59 mV
  done clear
  B)
   decrease of 59 mV
  done clear
  C)
   increase of 29.5 mV
  done clear
  D)
   decrease of 29.5 mV
  done clear
  View Answer play_arrow

• question_answer73) Which of the following reactions end infinite time?
  A)
   Zero order    
  done clear
  B)
   1st order
  done clear
  C)
   2nd order     
  done clear
  D)
   3rd order
  done clear
  View Answer play_arrow

• question_answer74) If equivalent conductance of 1M benzoic acid is \[12.8\,oh{{m}^{-1}}c{{m}^{2}}\] and if the conductance of benzoate ion and \[{{H}^{+}}\] ion are 42 and \[288.42\,oh{{m}^{-1}}c{{m}^{2}}\] respectively. Its degree of dissociation is :
  A)
   39%          
  done clear
  B)
   3.9%
  done clear
  C)
   0.35%        
  done clear
  D)
   0.039%
  done clear
  View Answer play_arrow

• question_answer75) In which of the following reactions carbon-carbon bond formation takes place?
  A)
   Cannizaro reaction
  done clear
  B)
   Reimer-Tiemann reaction
  done clear
  C)
   HVZ reaction
  done clear
  D)
   Schmidt reaction
  done clear
  View Answer play_arrow

• question_answer76) Which gives only mono-substituted product?
  A)
   o-dinitrobenzene
  done clear
  B)
   m-dinitrobenzene
  done clear
  C)
   p-dinitrobenzene
  done clear
  D)
   Nitrobenzene
  done clear
  View Answer play_arrow

• question_answer77) Which of the following is most polarized?
  A)
   Kr            
  done clear
  B)
   He
  done clear
  C)
   Ar            
  done clear
  D)
   Xe
  done clear
  View Answer play_arrow

• question_answer78) Order of boiling point is :
  A)
   \[HF>HI>HBr>HCl\]
  done clear
  B)
   \[HF>HBr>HI>HCl\]
  done clear
  C)
   \[HCl>HBr>HI>HF\]
  done clear
  D)
   \[HCl>HI>HBr>HF\]
  done clear
  View Answer play_arrow

• question_answer79) If two substance A and B have \[{{P}_{{{A}^{o}}}}:{{P}_{{{B}^{o}}}}=1:2\]and have mole fraction in solution 1 : 2 then mol fraction of A in vapours :
  A)
   0.33           
  done clear
  B)
   0.25
  done clear
  C)
   0.52           
  done clear
  D)
   0.2
  done clear
  View Answer play_arrow

• question_answer80) Order of hydrolysis for the following : (I) \[RCOCl\] (II) \[RCOOR\] (III) \[RCON{{H}_{2}}\] (IV) \[{{(RCO)}_{2}}O\]
  A)
   \[1>IV>II>III\]
  done clear
  B)
   \[1>II>III>IV\]
  done clear
  C)
   \[1>III>II>IV\]
  done clear
  D)
   \[1V>III>II>I\]
  done clear
  View Answer play_arrow

• question_answer81) If an aqueous solution of glucose is allowed to freeze than crystal of which will be separated out first?
  A)
   glucose        
  done clear
  B)
   Water
  done clear
  C)
   Both [a] & [b]
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer82) \[CH\equiv CH\xrightarrow[{{H}_{2}}S{{O}_{4}}]{HgS{{O}_{4}}}A\xrightarrow[{{H}_{2}}O]{C{{H}_{3}}MgBr}B\]\[\xrightarrow{P/B{{r}_{2}}}C\]Here C is:
  A)
   \[C{{H}_{3}}CH(Br)C{{H}_{3}}\]
  done clear
  B)
   \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}Br\]
  done clear
  C)
   \[C{{H}_{2}}=CH-Br\]
  done clear
  D)
   \[BrCH=CH-C{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer83) Number of bonds in benzene :
  A)
   \[6\,\sigma \] and \[3\,\pi \]    
  done clear
  B)
   \[12\,\sigma \] and \[3\,\pi \]
  done clear
  C)
   \[3\,\sigma \] and \[12\,\pi \]   
  done clear
  D)
   \[6\,\sigma \] and \[6\,\pi \]
  done clear
  View Answer play_arrow

• question_answer84) If the \[{{V}_{rms}}\] is \[30\,{{R}^{1/2}}\] at \[{{27}^{o}}C\] then calculate the molar mass of gas in kilogram :
  A)
   1              
  done clear
  B)
   2
  done clear
  C)
   4              
  done clear
  D)
   0.001
  done clear
  View Answer play_arrow

• question_answer85) If the enolate ion combines with carbonyl group of ester, we get:
  A)
   aldol
  done clear
  B)
   \[\alpha ,\beta \]-unsaturated ester
  done clear
  C)
   \[\beta \]-keto ester
  done clear
  D)
   acid
  done clear
  View Answer play_arrow

• question_answer86)  (I) and (II) are:
  A)
   enantiomers
  done clear
  B)
   diastereomers
  done clear
  C)
   meso compound
  done clear
  D)
   identical
  done clear
  View Answer play_arrow

• question_answer87) The standard molar heat of formation of ethane. \[C{{O}_{2}}\] and water are respectively -21.1, -94.1 and-68.3 kcal. The standard molar heat of combustion of ethane will be:
  A)
   - 372 kcal
  done clear
  B)
   162 kcal
  done clear
  C)
   -240 kcal     
  done clear
  D)
   183.5 kcal
  done clear
  View Answer play_arrow

• question_answer88) \[_{72}{{X}^{180}}\xrightarrow{2\alpha }\xrightarrow{\beta }{{\xrightarrow{\gamma }}_{z}}{{X}^{A}},Z,A\] are:
  A)
   69, 172       
  done clear
  B)
   172, 69
  done clear
  C)
   180, 70        
  done clear
  D)
   182, 68
  done clear
  View Answer play_arrow

• question_answer89) \[A+2B\xrightarrow{{}}C+D\], if \[-\xrightarrow[dt]{d[A]}=5\times {{10}^{-4}}\] \[mol\,{{L}^{-1}}{{s}^{-1}}\], then \[-\frac{d[B]}{dt}\] is:
  A)
   \[2.5\times {{10}^{-4}}mol\,{{L}^{-1}}{{s}^{-1}}\]
  done clear
  B)
   \[5.0\times {{10}^{-4}}mol\,{{L}^{-1}}{{s}^{-1}}\]
  done clear
  C)
   \[2.5\times {{10}^{-3}}mol\,{{L}^{-1}}{{s}^{-1}}\]
  done clear
  D)
   \[1.0\times {{10}^{-3}}mol\,{{L}^{-1}}{{s}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer90) Which of the following is paramagnetic?
  A)
   \[{{N}_{2}}\]           
  done clear
  B)
   \[{{C}_{2}}\]
  done clear
  C)
   \[{{C}_{2}}^{+}\]          
  done clear
  D)
   \[{{O}_{2}}^{2-}\]
  done clear
  View Answer play_arrow

• question_answer91) Which of the following compounds will react with \[NaHC{{O}_{3}}\] solution to give sodium salt and carbon dioxide?
  A)
   Acetic acid     
  done clear
  B)
   n-hexanol
  done clear
  C)
   Phenol        
  done clear
  D)
   Both [b] and [c]
  done clear
  View Answer play_arrow

• question_answer92) Which will give chiral molecule?
  A)
   \[C{{H}_{3}}COCl\xrightarrow{LiAl{{H}_{4}}}\]
  done clear
  B)
   \[{{C}_{2}}{{H}_{5}}CHO\xrightarrow[{{H}^{+}}/{{H}_{2}}O]{C{{H}_{3}}MgBr}\]
  done clear
  C)
   \[{{(C{{H}_{3}})}_{2}}CH{{C}_{2}}{{H}_{5}}\xrightarrow{Cu}\]
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer93) Which is not a polymer?
  A)
   Sucrose       
  done clear
  B)
   Enzyme
  done clear
  C)
   Starch        
  done clear
  D)
   Teflon
  done clear
  View Answer play_arrow

• question_answer94) Which statement is wrong for NO?
  A)
   It is anhydride of nitrous acid
  done clear
  B)
   Its dipole moment is 0.22 D
  done clear
  C)
   It forms dimer
  done clear
  D)
   It is paramagnetic
  done clear
  View Answer play_arrow

• question_answer95) Which of the following reactions will not give propane?
  A)
   \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}Cl\xrightarrow[{{H}_{2}}O]{Mg/ether}\]
  done clear
  B)
   \[C{{H}_{3}}COCl\xrightarrow[{{H}_{2}}O]{C{{H}_{3}}MgX}\]
  done clear
  C)
   \[C{{H}_{3}}CH=C{{H}_{2}}\xrightarrow[C{{H}_{3}}COOH]{{{B}_{2}}{{H}_{6}}}\]
  done clear
  D)
   \[C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{3}}\xrightarrow{P/HI}\]
  done clear
  View Answer play_arrow

• question_answer96) A compound \[A\to {{C}_{5}}{{H}_{10}}C{{l}_{2}}\] on hydrolysis gives \[{{C}_{5}}{{H}_{10}}O\] which reacts with \[N{{H}_{2}}OH\], forms iodoform, but does not give Fehling test. A is :
  A)
   \[C{{H}_{3}}-\overset{\begin{smallmatrix}  Cl \\  | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix}  | \\  Cl \end{smallmatrix}}{\mathop{C}}\,}}\,-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}\]
  done clear
  B)
   \[C{{H}_{3}}-C{{H}_{2}}-\overset{\begin{smallmatrix}  Cl \\  | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix}  | \\  Cl \end{smallmatrix}}{\mathop{C}}\,}}\,-C{{H}_{2}}-C{{H}_{3}}\]
  done clear
  C)
   \[C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-\overset{\begin{smallmatrix}  Cl \\  | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix}  | \\  Cl \end{smallmatrix}}{\mathop{CH}}\,}}\,\]
  done clear
  D)
   \[C{{H}_{3}}-\overset{\begin{smallmatrix}  Cl \\  | \end{smallmatrix}}{\mathop{C}}\,H-\overset{\begin{smallmatrix}  Cl \\  | \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{2}}-C{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer97) In photography, sodium thiosulphate is used as:
  A)
   complexing agent
  done clear
  B)
   oxidising agent
  done clear
  C)
   reducing agent
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer98) 
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
    
  done clear
  View Answer play_arrow

• question_answer99) There is no S?S bond in:
  A)
   \[{{s}_{2}}O_{4}^{2-}\]         
  done clear
  B)
   \[{{s}_{2}}O_{5}^{2-}\]
  done clear
  C)
   \[{{s}_{2}}O_{3}^{2-}\]         
  done clear
  D)
   \[{{s}_{2}}O_{7}^{2-}\]
  done clear
  View Answer play_arrow

• question_answer100) Which of the following is not a broad spectrum antibiotic?
  A)
   Tetracycline   
  done clear
  B)
   Chloromycetin
  done clear
  C)
   Penicillin
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer101) Amoeba is a/an:
  A)
   unicellular animal 
  done clear
  B)
   octacellular animal
  done clear
  C)
   multicellular animal
  done clear
  D)
   all of the above
  done clear
  View Answer play_arrow

• question_answer102) Butterfly belongs to:
  A)
   Homoptera    
  done clear
  B)
   Procoptera
  done clear
  C)
   Hemiptera     
  done clear
  D)
   Lepidoptera
  done clear
  View Answer play_arrow

• question_answer103) Coverstone of theory of Darwin was :
  A)
   natural selection
  done clear
  B)
   inheritance of acquired characters
  done clear
  C)
   omnis cellula e cellula
  done clear
  D)
   higher productivity
  done clear
  View Answer play_arrow

• question_answer104) Enzyme present in saliva is:
  A)
   maltase        
  done clear
  B)
   ptyalin
  done clear
  C)
   sucrase         
  done clear
  D)
   invertase
  done clear
  View Answer play_arrow

• question_answer105) The pH of blood is :
  A)
   between 7-8   
  done clear
  B)
   between 2-4
  done clear
  C)
   between 12-14
  done clear
  D)
   between 2-5
  done clear
  View Answer play_arrow

• question_answer106) Fungi in a forest ecosystem is :
  A)
   producer      
  done clear
  B)
   decomposer
  done clear
  C)
   top consumer  
  done clear
  D)
   autotroph
  done clear
  View Answer play_arrow

• question_answer107) Energy enters in a food chain through:
  A)
   producers
  done clear
  B)
   primary consumers
  done clear
  C)
   secondary consumers
  done clear
  D)
   tertiary consumers
  done clear
  View Answer play_arrow

• question_answer108)   Cyanobacteria is an:
  A)
   algae having blue-green pigment
  done clear
  B)
   algae having red pigment
  done clear
  C)
   algae having brown pigment
  done clear
  D)
   algae having yellow-brown pigment
  done clear
  View Answer play_arrow

• question_answer109) Cu is present in :
  A)
   plasmalemma  
  done clear
  B)
   plastoquinone
  done clear
  C)
   plastocyanin   
  done clear
  D)
   ferredoxin
  done clear
  View Answer play_arrow

• question_answer110) In which of the following, oxygen does not evolve during photosynthesis?
  A)
   Photosynthetic red algae
  done clear
  B)
   Photosynthetic green algae
  done clear
  C)
   Photosynthetic blue-green algae
  done clear
  D)
   Photosynthetic bacteria
  done clear
  View Answer play_arrow

• question_answer111) The largest phylum in respect of number of species is :
  A)
   Coelenterata   
  done clear
  B)
   Arthropoda
  done clear
  C)
   Protozoa    
  done clear
  D)
   Porifera
  done clear
  View Answer play_arrow

• question_answer112) Chronical disturbance in hormone secretion of thyroid gland causes :
  A)
   goitre
  done clear
  B)
   diabetes
  done clear
  C)
   Addisons disease
  done clear
  D)
   colourblindness
  done clear
  View Answer play_arrow

• question_answer113) The formation of egg and sperm is affected by:
  A)
   LH           
  done clear
  B)
   MH
  done clear
  C)
   TSH          
  done clear
  D)
  ( d) FSH
  done clear
  View Answer play_arrow

• question_answer114) ACTH is secreted by :
  A)
   thyroid gland  
  done clear
  B)
   thymus gland
  done clear
  C)
   pituitary gland
  done clear
  D)
  isletsof Langerhans
  done clear
  View Answer play_arrow

• question_answer115) Juvenile hormone is secreted by :
  A)
   thyroid gland  
  done clear
  B)
   thymus gland
  done clear
  C)
   adrenal gland  
  done clear
  D)
   corpora allata
  done clear
  View Answer play_arrow

• question_answer116) Enzymes of electron transport system are present in :
  A)
   inner mitochondrial membrane
  done clear
  B)
   matrix
  done clear
  C)
   intermembranous space
  done clear
  D)
   endoplasmic reticulum
  done clear
  View Answer play_arrow

• question_answer117) Ozone hole results in :
  A)
   UV radiation reaches the earth
  done clear
  B)
   cataract
  done clear
  C)
   increase in skin cancer
  done clear
  D)
   all of the above
  done clear
  View Answer play_arrow

• question_answer118) Green-house effect is due to the increased concentration of:
  A)
   \[C{{O}_{2}}\]          
  done clear
  B)
   Ne
  done clear
  C)
   \[S{{O}_{2}}\]          
  done clear
  D)
   \[N{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer119) Soil erosion is prevented by :
  A)
   deforestation
  done clear
  B)
   afforestation
  done clear
  C)
   reduction of CFCs production
  done clear
  D)
   use of CNG in all transports
  done clear
  View Answer play_arrow

• question_answer120) Humus is present in :
  A)
   horizon-A      
  done clear
  B)
   horizon-0
  done clear
  C)
   horizon-B      
  done clear
  D)
   horizon-C
  done clear
  View Answer play_arrow

• question_answer121) Which of the following metal is present in vitamin \[{{B}_{12}}\]?
  A)
   Cobalt        
  done clear
  B)
   Copper
  done clear
  C)
   Zinc          
  done clear
  D)
   Magnesium
  done clear
  View Answer play_arrow

• question_answer122) Primary blood cells are formed in :
  A)
   plasma        
  done clear
  B)
   bone marrow
  done clear
  C)
   liver          
  done clear
  D)
   spleen
  done clear
  View Answer play_arrow

• question_answer123) Secondary host of Schistosoma is:
  A)
   Hydra         
  done clear
  B)
   Euglena
  done clear
  C)
   Snail          
  done clear
  D)
   Pheretima
  done clear
  View Answer play_arrow

• question_answer124) Nerve cells are the part of:
  A)
   epithelial tissue
  done clear
  B)
   connective tissue
  done clear
  C)
   muscles tissue  
  done clear
  D)
   nervous tissue
  done clear
  View Answer play_arrow

• question_answer125) Sertoli cells help in :
  A)
   maturation of eggs
  done clear
  B)
   maturation of sperms
  done clear
  C)
   enzyme production
  done clear
  D)
   ovulation
  done clear
  View Answer play_arrow

• question_answer126) Opium is extracted from :
  A)
   Atropa belladona
  done clear
  B)
   Papaver somniferum
  done clear
  C)
   Vinca rosea   
  done clear
  D)
   Azadirachta indica
  done clear
  View Answer play_arrow

• question_answer127) Quinine is obtained from :
  A)
   bark of Cinchona
  done clear
  B)
   root of Cinchona
  done clear
  C)
   wood of Cinchona
  done clear
  D)
   leaves of Cinchona
  done clear
  View Answer play_arrow

• question_answer128) Angiosperms differ from gymnosperms in :
  A)
   seeds
  done clear
  B)
   fruits
  done clear
  C)
   male gametophyte
  done clear
  D)
   female gametophyte
  done clear
  View Answer play_arrow

• question_answer129) When Ronald Ross found malaria parasite infection, in mosquito?
  A)
   1897         
  done clear
  B)
   1850
  done clear
  C)
   1835         
  done clear
  D)
   1859
  done clear
  View Answer play_arrow

• question_answer130) Genes are present on :
  A)
   chromosomes   
  done clear
  B)
   lamellae
  done clear
  C)
   plasma membrane
  done clear
  D)
   mesosomes
  done clear
  View Answer play_arrow

• question_answer131) In the process of photosynthesis :
  A)
   \[{{O}_{2}}\] is taken and \[C{{O}_{2}}\] is evolved
  done clear
  B)
   \[{{O}_{2}}\] is taken but \[C{{O}_{2}}\] is not evolved
  done clear
  C)
   \[C{{O}_{2}}\] is taken and \[{{O}_{2}}\] is evolved
  done clear
  D)
   \[C{{O}_{2}}\] is taken and \[N{{O}_{2}}\] is evolved
  done clear
  View Answer play_arrow

• question_answer132) Bacteria do not have :
  A)
   ribosome
  done clear
  B)
   protein synthesizing apparatus
  done clear
  C)
   mitochondria
  done clear
  D)
   cell wall
  done clear
  View Answer play_arrow

• question_answer133) Which of the following plant hormone if extracted from fungus?
  A)
   Auxin         
  done clear
  B)
   Gibberellin
  done clear
  C)
   Cytokinin       
  done clear
  D)
   2, 4-D
  done clear
  View Answer play_arrow

• question_answer134) Highest concentration of auxin is found in :
  A)
   root and shoot tips
  done clear
  B)
   leaves and fruits
  done clear
  C)
  midstem portion
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer135) Ethylene is used for :
  A)
   decrease the senescence
  done clear
  B)
   increase the height of stem
  done clear
  C)
   ripening of fruits
  done clear
  D)
   prevention of leaf fall
  done clear
  View Answer play_arrow

• question_answer136) Meristematic tissues are:
  A)
   premature having ability of division
  done clear
  B)
   mature does not have ability of division
  done clear
  C)
   premature not having ability of division
  done clear
  D)
   complex differentiating in xylem, phloem and cambium
  done clear
  View Answer play_arrow

• question_answer137) The function of polymerase chain reaction (PCR) is :
  A)
   translation
  done clear
  B)
   transduction
  done clear
  C)
   DNA amplification
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer138) A codon is made up of:
  A)
   single nucleotide
  done clear
  B)
   two nucleotides
  done clear
  C)
   three nucleotides
  done clear
  D)
   four nucleotides
  done clear
  View Answer play_arrow

• question_answer139) Protein in silk thread is :
  A)
   fibroin         
  done clear
  B)
   keratin
  done clear
  C)
   albumin       
  done clear
  D)
   globulin
  done clear
  View Answer play_arrow

• question_answer140) Histamine is secreted by:
  A)
   goblet cell     
  done clear
  B)
   nerve cell
  done clear
  C)
   Kupffer cell    
  done clear
  D)
   mast cell
  done clear
  View Answer play_arrow

• question_answer141) Which of the following hormones are secreted by a pancreas?
  A)
   Insulin and glucagon
  done clear
  B)
   Epinephrin and nor-epinephrin
  done clear
  C)
   Thyroxine and melanin
  done clear
  D)
   Lactocin and oxytocin
  done clear
  View Answer play_arrow

• question_answer142) Starfish belongs to phylum :
  A)
   Porifera       
  done clear
  B)
   Coelenterata
  done clear
  C)
   Echinodermata
  done clear
  D)
   Arthropoda
  done clear
  View Answer play_arrow

• question_answer143) Yeast belongs to :
  A)
   Zygomycetes  
  done clear
  B)
   Basidiomycetes
  done clear
  C)
   Ascomycetes   
  done clear
  D)
   Phycomycetes
  done clear
  View Answer play_arrow

• question_answer144) Mycorrhiza helps in :
  A)
   nutrition uptaking
  done clear
  B)
   food manufacturing
  done clear
  C)
   disease resistance
  done clear
  D)
   disease prevention
  done clear
  View Answer play_arrow

• question_answer145) The conversion of \[N{{O}_{3}}\] to \[{{N}_{2}}\] is called :
  A)
   nitrification    
  done clear
  B)
   denitrification
  done clear
  C)
   ammonification
  done clear
  D)
   nitrogen fixation
  done clear
  View Answer play_arrow

• question_answer146)  Luscuta is a :
  A)
   parasitic plant 
  done clear
  B)
   symbiotic plant
  done clear
  C)
   predator       
  done clear
  D)
   decomposer
  done clear
  View Answer play_arrow

• question_answer147) Binary fission is a mode of:
  A)
   micropropagation
  done clear
  B)
   vegetative propagation
  done clear
  C)
   macropropagation
  done clear
  D)
   sexual reproduction
  done clear
  View Answer play_arrow

• question_answer148) Humidity in atmosphere decreases rate of:
  A)
   transpiration   
  done clear
  B)
   photosynthesis
  done clear
  C)
   glycolysis      
  done clear
  D)
   growth
  done clear
  View Answer play_arrow

• question_answer149) In osmosis, there is movement of:
  A)
   solute only
  done clear
  B)
   solvent only
  done clear
  C)
   both [a] and [b]
  done clear
  D)
   neither solute nor solvent
  done clear
  View Answer play_arrow

• question_answer150) Jumping genes in maize were discovered by :
  A)
   Hugo de Vries
  done clear
  B)
   T. H. Morgan
  done clear
  C)
    Barbara McClintock
  done clear
  D)
   Mendel
  done clear
  View Answer play_arrow

• question_answer151) Sea horse belongs to :
  A)
   Mammals     
  done clear
  B)
   Amphibia
  done clear
  C)
   Aves          
  done clear
  D)
   Pisces
  done clear
  View Answer play_arrow

• question_answer152) Kupffer cells are present in :
  A)
   liver           
  done clear
  B)
   pancreas
  done clear
  C)
   small intestine  
  done clear
  D)
   large intestine
  done clear
  View Answer play_arrow

• question_answer153) Ontogeny repeats phylogeny is a part of:
  A)
   Recapitulation theory
  done clear
  B)
   Darwins evolution theory
  done clear
  C)
   Lamarcks evolution theory
  done clear
  D)
   Weismanns theory
  done clear
  View Answer play_arrow

• question_answer154) Who gave theory about embryonic evolution?
  A)
   Darwin       
  done clear
  B)
   Lamarck
  done clear
  C)
   Haeckel       
  done clear
  D)
   Dabzansky
  done clear
  View Answer play_arrow

• question_answer155) Primitive man was originated during :
  A)
   Miocene       
  done clear
  B)
   Holocene
  done clear
  C)
   Pleistocene   
  done clear
  D)
   Pliocene
  done clear
  View Answer play_arrow

• question_answer156) Universal blood recipient is :
  A)
   blood group-O 
  done clear
  B)
   blood group-AB
  done clear
  C)
   blood group-A 
  done clear
  D)
   blood group-B
  done clear
  View Answer play_arrow

• question_answer157) Plant like nutrition is present in :
  A)
   Amoeba       
  done clear
  B)
   Paramedum
  done clear
  C)
   Euglena       
  done clear
  D)
   Plasmodium
  done clear
  View Answer play_arrow

• question_answer158) Which of the following is connecting link between reptiles and birds?
  A)
   Archaeopteryx  
  done clear
  B)
   Euglena
  done clear
  C)
   Neopilina      
  done clear
  D)
   Latimeria
  done clear
  View Answer play_arrow

• question_answer159) Which of the following connects glycolysis to Krebs cycle?
  A)
   Acetyl Co-A
  done clear
  B)
   Ribozyme
  done clear
  C)
   Cytochrome oxidase
  done clear
  D)
   N-acetyl glucosamine
  done clear
  View Answer play_arrow

• question_answer160) Pyruvic acid is the end product of:
  A)
   Krebs cycle
  done clear
  B)
   electron transport system
  done clear
  C)
   photosynthesis
  done clear
  D)
   glycolysis
  done clear
  View Answer play_arrow

• question_answer161) Which of the following law was discovered first by Mendel?
  A)
   Law of dominance
  done clear
  B)
   Law of segregation
  done clear
  C)
   Law of independent assortment
  done clear
  D)
   Law of sex determination
  done clear
  View Answer play_arrow

• question_answer162) Which of the following accepts terminal electron?
  A)
   Molecular\[{{O}_{2}}\]
  done clear
  B)
   Molecular \[{{H}_{2}}\]
  done clear
  C)
   Molecular \[C{{O}_{2}}\]
  done clear
  D)
   \[NADP{{H}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer163) Which of the following is a viral disease?
  A)
   Typhoid       
  done clear
  B)
   Polio
  done clear
  C)
   T.B.           
  done clear
  D)
   Leprosy
  done clear
  View Answer play_arrow

• question_answer164) Which one is a sex linked disease ?
  A)
   Colourblindness
  done clear
  B)
   Haemophilia
  done clear
  C)
   Syphilis
  done clear
  D)
   Both [a] and [b]
  done clear
  View Answer play_arrow

• question_answer165) Metamorphosis in frog is hastened by :
  A)
   thyroxine      
  done clear
  B)
   insulin
  done clear
  C)
   glucagon      
  done clear
  D)
   adrenalin
  done clear
  View Answer play_arrow

• question_answer166) Which have no specific organ for respiration but respire?
  A)
   Rabbit        
  done clear
  B)
   Cockroach
  done clear
  C)
   Earthworm    
  done clear
  D)
   Frog
  done clear
  View Answer play_arrow

• question_answer167) The study of reptiles is called :
  A)
   Herpetology   
  done clear
  B)
   Dermatology
  done clear
  C)
   Angiology     
  done clear
  D)
   Parazoology
  done clear
  View Answer play_arrow

• question_answer168) Tendons and ligaments are :
  A)
   epithelial tissue
  done clear
  B)
   fibrous connective tissue
  done clear
  C)
   nerve tissue
  done clear
  D)
   muscular tissue
  done clear
  View Answer play_arrow

• question_answer169) Mushroom belongs to:
  A)
   Ascomycetes   
  done clear
  B)
   Basidiomycetes
  done clear
  C)
   Phycomycetes  
  done clear
  D)
   Zygomycetes
  done clear
  View Answer play_arrow

• question_answer170) The wall of bacteria consists of :
  A)
   N-acetyl glucosamine
  done clear
  B)
   N-acetyl muramic acid
  done clear
  C)
   both [a] and [b]
  done clear
  D)
   cellulose
  done clear
  View Answer play_arrow

• question_answer171) The movement of pollen tube is called :
  A)
  chemotropism 
  done clear
  B)
   thermotaxis
  done clear
  C)
   thermonastic  
  done clear
  D)
   hydrotropism
  done clear
  View Answer play_arrow

• question_answer172) What will be the gametic chromosome number of a cell, if somatic cell have 40 chromosomes?
  A)
   10           
  done clear
  B)
   20
  done clear
  C)
   30            
  done clear
  D)
   40
  done clear
  View Answer play_arrow

• question_answer173) Who coined the term cell?
  A)
   Purkinje      
  done clear
  B)
   Robert Brown
  done clear
  C)
   Robert Hooke  
  done clear
  D)
   Hugo von Mohl
  done clear
  View Answer play_arrow

• question_answer174) Which of the following animals is mostly used in genetics experiments ?
  A)
   Butterfly      
  done clear
  B)
   Fruitfly
  done clear
  C)
   Housefly      
  done clear
  D)
   Dragonfly
  done clear
  View Answer play_arrow

• question_answer175) In which of the following stage chromosomes are arranged at equatorial plate?
  A)
   Anaphase     
  done clear
  B)
   Metaphase
  done clear
  C)
   Prophase      
  done clear
  D)
   Telophase
  done clear
  View Answer play_arrow

• question_answer176) Which of the following is called as Age of Reptiles?
  A)
   Coenozoic era  
  done clear
  B)
   Azoic era
  done clear
  C)
   Mesozoic era   
  done clear
  D)
   Precambrian era
  done clear
  View Answer play_arrow

• question_answer177) Who first conducted experiment on evolution to prove biochemical origin of life?
  A)
   Miller and Urey
  done clear
  B)
   Darwin
  done clear
  C)
   Lamarck      
  done clear
  D)
   Weismann
  done clear
  View Answer play_arrow

• question_answer178) Maturation of sperm before penetration is called:
  A)
   spermatogenesis
  done clear
  B)
   spermiogenesis
  done clear
  C)
   capacitation   
  done clear
  D)
   spermatid
  done clear
  View Answer play_arrow

• question_answer179) Echolocation is. found in :
  A)
   bat            
  done clear
  B)
   cat
  done clear
  C)
   dog           
  done clear
  D)
   horse
  done clear
  View Answer play_arrow

• question_answer180) Life span of RBC is :
  A)
   50 days
  done clear
  B)
   70 days
  done clear
  C)
   120 days
  done clear
  D)
   220 days
  done clear
  View Answer play_arrow

• question_answer181) During mitosis number of chromosomes gets :
  A)
   change
  done clear
  B)
   no change
  done clear
  C)
   may be change if cell is mature
  done clear
  D)
   may be change if cell is immature
  done clear
  View Answer play_arrow

• question_answer182) Which of the following enzyme is used in DNA multiplication?
  A)
   RNA pplymerase
  done clear
  B)
   DNA endonuclease
  done clear
  C)
   Exonuclease
  done clear
  D)
   DNA polymerase
  done clear
  View Answer play_arrow

• question_answer183) The back bone of RNA consists of which of the following sugar ?
  A)
   Deoxyribose  
  done clear
  B)
   Ribose
  done clear
  C)
   Sucrose       
  done clear
  D)
   Maltose
  done clear
  View Answer play_arrow

• question_answer184) Phytotron is:
  A)
   a controlled condition chamber for tissue culture
  done clear
  B)
   leaf culture process
  done clear
  C)
   special culture of plants
  done clear
  D)
   root culture process
  done clear
  View Answer play_arrow

• question_answer185) Phloem conducts food by :
  A)
   perforated sieve plates
  done clear
  B)
   bast fibres
  done clear
  C)
   xylem parenchyma
  done clear
  D)
   xylem fibres
  done clear
  View Answer play_arrow

• question_answer186) The purpose of crop rotation is to :
  A)
   increase the fertility of soil
  done clear
  B)
   decrease the fertility of soil
  done clear
  C)
   prevent soil erosin
  done clear
  D)
   prevent water erosion
  done clear
  View Answer play_arrow

• question_answer187) Which of the following is a nitrogen fixing organism?
  A)
   BGA          
  done clear
  B)
   Rhizobium
  done clear
  C)
   Both [a] and [b]
  done clear
  D)
   Aspergillus
  done clear
  View Answer play_arrow

• question_answer188) To maintain constant body temperature is called:
  A)
   homeothermic
  done clear
  B)
   poikilothermic
  done clear
  C)
   homozygous
  done clear
  D)
   heterozygous
  done clear
  View Answer play_arrow

• question_answer189) African sleeping sickness is caused by :
  A)
   Trypanosoma  
  done clear
  B)
   Leishmania
  done clear
  C)
   Latimeria      
  done clear
  D)
   Plasmodium
  done clear
  View Answer play_arrow

• question_answer190) Natural pearl belongs to :
  A)
   Arthropoda    
  done clear
  B)
   Protozoa
  done clear
  C)
   Mollusca      
  done clear
  D)
   Echinodermata
  done clear
  View Answer play_arrow

• question_answer191) During blood clotting which of the following is used?
  A)
   Co            
  done clear
  B)
   \[C{{a}^{2+}}\]
  done clear
  C)
   \[N{{a}^{+}}\]          
  done clear
  D)
   \[C{{l}^{-}}\]
  done clear
  View Answer play_arrow

• question_answer192) The chromosome showing L-shaped structure by the presence of centromere is termed as:
  A)
   acentric
  done clear
  B)
   metacentric
  done clear
  C)
   sub-metacentric
  done clear
  D)
   telocentric
  done clear
  View Answer play_arrow

• question_answer193) The infected stage of malarial parasite is :
  A)
   sporozoites stage
  done clear
  B)
   schizozoites stage
  done clear
  C)
   merozoites stage
  done clear
  D)
   metacryptozoites stage
  done clear
  View Answer play_arrow

• question_answer194) Haemoglobin contains:
  A)
   \[F{{e}^{2+}}\]         
  done clear
  B)
   \[M{{g}^{2+}}\]
  done clear
  C)
   \[N{{a}^{2+}}\]        
  done clear
  D)
   \[C{{a}^{2+}}\]
  done clear
  View Answer play_arrow

• question_answer195) Chromosomes can be seen best during :
  A)
   prophase      
  done clear
  B)
   metaphase
  done clear
  C)
   anaphase      
  done clear
  D)
   telophase
  done clear
  View Answer play_arrow

• question_answer196) Which of the following is concerned with \[C{{O}_{2}}\]fixation?
  A)
   Krebs cycle     
  done clear
  B)
   Calvin cycle
  done clear
  C)
   Omithine cycle
  done clear
  D)
   Glycolysis
  done clear
  View Answer play_arrow

• question_answer197) In photosynthesis there is:
  A)
   reduction of \[{{H}_{2}}O\]
  done clear
  B)
   oxidation of \[{{H}_{2}}O\]
  done clear
  C)
   oxidation of \[C{{O}_{2}}\]
  done clear
  D)
   oxidation of \[N{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer198) Pigment present in cyanobacteria is :
  A)
   r-phycocyanin
  done clear
  B)
   r-phycoerythrin
  done clear
  C)
   c-phycocyanin
  done clear
  D)
   anthocyanin
  done clear
  View Answer play_arrow

• question_answer199) Multiplication of DNA is called :
  A)
   transcription   
  done clear
  B)
   translation
  done clear
  C)
   replication     
  done clear
  D)
   transduction
  done clear
  View Answer play_arrow

• question_answer200) ELISA test is used for detection of:
  A)
   antibodies      
  done clear
  B)
   viral disease
  done clear
  C)
   AIDS           
  done clear
  D)
   all of these
  done clear
  View Answer play_arrow