Solved papers for Haryana PMT Haryana PMT Solved Paper-2011

done Haryana PMT Solved Paper-2011

  • question_answer1) If 100 kWh of energy is consumed at 33 V in a copper voltameter, what is the mass of copper liberated? (Take ECE for copper as \[0.33\times {{10}^{-}}^{6}kg/C\])

    A) 1 mg

    B) 1 kg

    C) 3.6kg

    D) 3.3kg

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  • question_answer2) A thin rectangular magnet suspended freely has a period of oscillation of 4 s. If it is broken into two equal halves, the period of oscillation of each half will be

    A) 4 s

    B) 2 s

    C) 0.5 s

    D) 0.25 s

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  • question_answer3) The thermo emf of a thermocouple is given by\[e=2164r-6.2{{t}^{2}},\] the neutral temperature and a temperature of inversion are

    A) 349, 174.5

    B) 174.5, 349

    C) 349, 698

    D) 698, 349

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  • question_answer4) 125 cm of potentiometer wire balances the emf of a cell and 100 cm of the wire is required to balance the poles of a cell which are joined by a 20 resistor. The internal resistance of the cell is

    A) 0.250

    B) 0.500

    C) 0.750

    D) 1.250

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  • question_answer5) A steel wire is 1 m long and has \[1\text{ }m{{m}^{2}}\]area of cross-section. If it takes 200 N to stretch thin wire by 1 mm, how much force will be required to stretch a wire of same material and diameter from its normal length of 10 m to a length of 10.02 m?

    A) 1000 N

    B) 200 N

    C) 2000 N

    D) 400 N

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  • question_answer6) A metal sphere cools at the rate of \[3{}^\circ C/min\] when its temperature is \[50{}^\circ C\]. Its rate of cooling when its temperature is \[40{}^\circ C\] and the temperature of surrounding is \[25{}^\circ C\] is

    A) \[1.3{}^\circ C/min\]

    B) \[1.4{}^\circ C/min\]

    C) \[1.5{}^\circ C/min\]

    D) \[1.8{}^\circ C/min\]

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  • question_answer7) When the rate of emission of radiant heat from a body is less than the rate of absorption of radiant heat from surrounding then the temperature of body will

    A) increase and then decrease

    B) remain constant

    C) decrease

    D) increase

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  • question_answer8) The limbs of a U-tube are vertical and have internal diameters 0.5 cm and 1 cm respectively. If the tube contains water, what will be the difference in the surface level in the limbs? (Surface tension of water = 72 dyne/cm)

    A) 0.2938cm

    B) 0.8938cm

    C) 0.6938cm

    D) None of these

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  • question_answer9) A large number of liquid drops each of radius a coalesce to form a single spherical drop of radius b. The energy released in the process is converted into the kinetic energy of the big drop formed, the speed of the big drop is

    A) \[\sqrt{\frac{4T}{\rho }\left( \frac{1}{a}-\frac{1}{b} \right)}\]

    B) \[\sqrt{\frac{2T}{\rho }\left( \frac{1}{a}-\frac{1}{b} \right)}\]

    C) \[\sqrt{\frac{T}{\rho }\left( \frac{1}{a}-\frac{1}{b} \right)}\]

    D) \[\sqrt{\frac{6T}{\rho }\left( \frac{1}{a}-\frac{1}{b} \right)}\]

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  • question_answer10) The distance between the sun and the earth be r, then the angular momentum of the earth around the sun is proportional to

    A) \[\sqrt{r}\]

    B) r3/2

    C) r

    D) None of these

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  • question_answer11) The root mean square velocity of the molecules in a sample of helium is \[\frac{5}{7}\]th that of the molecules in a simple of hydrogen. If the temperature of hydrogen sample is \[0{}^\circ C\] then that of helium sample is about

    A) \[100{}^\circ C\]

    B) \[273{}^\circ C\]

    C) \[173\text{ }K\]

    D) \[0{}^\circ C\]

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  • question_answer12) When a number of thermocouple are joined in series, the thermo emf

    A) is decreased

    B) is increased

    C) becomes zero

    D) remains same

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  • question_answer13) To cool the car engineers in radiators, water is used because it is having

    A) high value of specific heat

    B) high density

    C) low surface tension

    D) low density

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  • question_answer14) An SHM is given by y = 5 [sin (3\[\pi \]t) + \[\sqrt{3}\]cos (3\[\pi \]t)] What is the amplitude of the motion of y in metre?

    A) 10

    B) 20

    C) 1

    D) 5

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  • question_answer15) When cathode rays are suddenly stopped by metal target such as tungsten, then

    A) X-rays are produced

    B) \[\beta -\]rays are produced

    C) Neither nor

    D) Both (a) and (b)

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  • question_answer16) Photons of energy 6 eV are incident on a potassium surface of work function 2.1 eV. The stopping potential will be

    A) -8.1V

    B) -3.9V

    C) -6V

    D) -2.1V

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  • question_answer17) A ray of light is incident on the surface of a medium with the velocity of light at angle of \[45{}^\circ \] and refracted in medium at an angle of \[30{}^\circ \]. What will be the velocity of light in the medium?

    A) \[1.96\times {{10}^{8}}m/s\]

    B) \[2.12\times {{10}^{8}}m/s\]

    C) \[3.18\times {{10}^{8}}m/s\]

    D) \[3.33\times {{10}^{8}}m/s\]

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  • question_answer18) The type of bonding in a silicon crystal is

    A) van der Waals

    B) covalent

    C) metallic

    D) ionic

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  • question_answer19) The Rydberg constant for hydrogen is 10967700/m. The shortest and longest   wavelength limit in its Lyman series will be   respectively

    A) \[911\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1215\overset{\text{o}}{\mathop{\text{A}}}\,\]

    B) \[1011\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1515\overset{\text{o}}{\mathop{\text{A}}}\,\]

    C) \[711\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }575\overset{\text{o}}{\mathop{\text{A}}}\,\]

    D) None of these

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  • question_answer20) The quality factor (Q value) of the circuit, when a series resonant circuit contains \[\text{L=}\frac{\text{5}}{\text{ }\!\!\pi\!\!\text{ }}\text{mH,}\,\text{C=}\frac{\text{200}}{\text{ }\!\!\pi\!\!\text{ }}\text{ }\!\!\mu\!\!\text{ F}\]and R= 100 \[\Omega \], will be (source of emf e =200 sin 100 \[\pi \]t is applied to the circuit)

    A) \[5\times {{10}^{-2}}\]

    B) \[5\times {{10}^{-5}}\]

    C) \[\left( \frac{5}{\pi } \right){{10}^{-5}}\]

    D) \[\left( \frac{5}{\pi } \right){{10}^{-2}}\]

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  • question_answer21) A ferromagnetic material is placed in an external magnetic field. The magnetic

    A) domains may

    B) increase in size

    C) decrease in size

    D) increase or decrease in size

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  • question_answer22) Have no relation with the field five capacitors of 10 \[\mu \]F capacity each are connected to a DC potential difference of 100 V as shown in the figure. The equivalent capacitance between the point A and B will be equal to

    A) 40 \[\mu F\]

    B) 20 \[\mu F\]

    C) 30 \[\mu F\]

    D) 10 \[\mu F\]

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  • question_answer23) An electric wire of area of cross-section a and length \[l\] has resistance R. Another wire of same material and same length has cross-sectional area 4a, then the resistance of another wire is

    A) 4R

    B) \[\frac{R}{4}\]

    C) \[\frac{R}{16}\]

    D) 16R

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  • question_answer24) The temperature coefficient of resistance of a wire of \[0.00125/{}^\circ C\]. At 300 K, its resistance is 1 \[\Omega \]. The resistance of the wire will be 2\[\Omega \], at following temperature

    A) 1127K

    B) 1128K

    C) 600 K

    D) 1400 K

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  • question_answer25) Two bulbs A and B are connected in parallel. Bulb A will glow more than bulb B. If their resistances are \[{{R}_{A}}\] and \[{{R}_{B}}\] respectively. Then

    A) \[{{R}_{A}}<{{R}_{B}}\]

    B) \[{{R}_{A}}={{R}_{B}}\]

    C) \[{{R}_{A}}>{{R}_{B}}\]

    D) None of these

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  • question_answer26) The torque t acting on a magnet due to a magnetic field B is

    A) \[\tau =B.M\]

    B) \[\tau =M\times B\]

    C) \[\tau =\frac{B}{M}\]

    D) \[\tau =\frac{M}{B}\]

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  • question_answer27) An ammeter, whose resistance is \[50\Omega \] can read upto 10 mA. In order to increases its range to 1 A. What should be the shunt resistance?

    A) 0.5050\[\Omega \]

    B) 5.050\[\Omega \]

    C) 50.50 \[\Omega \]

    D) 505.05\[\Omega \]

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  • question_answer28) If a particle takes t second less and acquires a velocity of v m/s more in falling through the same distance on two planets where the accelerations due to gravity are 2g and 8g respectively then

    A) v= 4gt

    B) v= 5gt

    C) v= 2gt

    D) v= 16gr

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  • question_answer29) The energy density of an electromagnetic wave given by \[E=(50N/C)sin(\omega t-kx)\]will be nearly

    A) \[{{10}^{-8}}J{{m}^{-3}}\]

    B) \[{{10}^{-7}}J{{m}^{-3}}\]

    C) \[{{10}^{-}}^{6}J{{m}^{-3}}\]

    D) \[{{10}^{-5}}J{{m}^{-3}}\]

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  • question_answer30) A calcite crystal is placed over a dot on a piece of paper and rotated. On viewing through calcite one will see

    A) a single dot

    B) two stationary dots

    C) two rotating dots

    D) one rotating about the other

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  • question_answer31) In the radioactive decay law \[N={{N}_{0}}{{e}^{-}}^{\lambda t}\]the dimensions of \[\lambda \] are

    A) \[\left[ {{\text{M}}^{0}}\text{ }{{\text{L}}^{\text{0}}}\text{ }{{\text{T}}^{\text{0}}} \right]~~~~\]

    B) \[\left[ {{\text{M}}^{0}}\text{ }{{\text{L}}^{\text{0}}}\text{ }{{\text{T}}^{-1}} \right]~~~~\]

    C) \[\left[ {{\text{M}}^{0}}\text{ }{{\text{L}}^{\text{0}}}\text{ T} \right]~~~~\]

    D) \[\left[ \text{M }{{\text{L}}^{\text{0}}}\text{ }{{\text{T}}^{-1}} \right]~~~~\]

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  • question_answer32) A particle is moving on a circular path with a constant speed v. The magnitude of the change in its velocity after it has described an angle of \[60{}^\circ \] is

    A) \[v\]

    B) \[\sqrt{2v}\]

    C) \[\sqrt{3v}\]

    D) \[\frac{\sqrt{3}}{2}v\]

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  • question_answer33) A particle moves is X-Y plane under the influence of a force F such that its instantaneous momentum is \[\mathbf{p}=\mathbf{i}2\cos t~+\mathbf{j}2\sin t,\] what is the angle between the force and instantaneous momentum?

    A) \[0{}^\circ \]

    B) \[180{}^\circ \]

    C) \[90{}^\circ \]

    D) \[45{}^\circ \]

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  • question_answer34) The KE of a body varies directly as the time (t) elapsed. The force acting varies directly as

    A) \[{{t}^{-1}}\]

    B) \[{{t}^{-1/2}}\]

    C) \[{{t}^{1/2}}\]

    D) t

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  • question_answer35) A parallel plate capacitor is connected across a 2 V battery and charged. The battery is then disconnected and a glass slab is introduced between plates. Which of the following pairs of quantities decrease?

    A) Charge and potential difference

    B) Potential difference and energy stored

    C) Energy stored and capacitance

    D) Capacitance and charge

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  • question_answer36) A solenoid 600 mm long has 50 turns on it and is wound on an iron rod of 7.5 mm radius. Find the flux through the solenoid when the current in it is 3 A. The relative permeability of iron is 600.

    A) 1.66Wb

    B) 1.66 N Wb

    C) 1.66 m Wb

    D) 1.66 \[\mu \] Wb

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  • question_answer37) A transformer has an efficiency of 80%. It works at 4 kW and 100 V. If secondary voltage is 240 V, the current in primary coil is

    A) 0.4 A

    B) 4 A

    C) 10 A

    D) 40 A

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  • question_answer38) The density for simple cubic lattice is (where A is atomic weight, N is Avogadro number and a is a lattice parameter)

    A) \[\frac{4A}{N{{a}^{3}}}\]

    B) \[\frac{2A}{N{{a}^{3}}}\]

    C) \[\frac{A}{N{{a}^{3}}}\]

    D) \[\frac{A}{N{{a}^{2}}}\]

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  • question_answer39) A mass of dry air at NTP is compressed to \[\frac{1}{20}\]th of its original volume suddenly. If r = 1.4, the final pressure would be

    A) 20atm

    B) 66.28 atm

    C) 30 atm

    D) 150 atm

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  • question_answer40) A gas at pressure \[6\times {{10}^{s}}N/{{m}^{2}}\]and volume \[1{{m}^{3}}\]expands to \[3\text{ }{{m}^{3}}\] and its pressure falls to\[4\times {{10}^{5}}N/{{m}^{2}}.\] Given, that the indicator diagram is a straight line, work done by the system is

    A) \[6\times {{10}^{5}}J\]

    B) \[3\times {{10}^{5}}J\]

    C) \[4\times {{10}^{5}}J\]

    D) \[10\times {{10}^{5}}J\]

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  • question_answer41) The distance between two points differing in phase by 60? on a wave having a wave velocity 360 m/s and frequency 500 Hz is

    A) 0.72m

    B) 0.12m

    C) 0.18m

    D) 0.36m

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  • question_answer42) The ionization energy of a hydrogen atom is 13.6 eV. Following Bohrs theory, the energy corresponding to a transition between 3rd and 4th orbit is

    A) 3.40 eV

    B) 1.51 eV

    C) 0.85 eV

    D) 0.66 eV

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  • question_answer43) Neutron decay in free space is given as follows\[_{0}\,n{{\,}^{1}}\,\to {{\,}_{1}}{{H}^{1}}\,+{{\,}_{-}}\,1\,{{e}^{0}}\,+\,[\,]\] Then the parenthesis represents a

    A) neutrino

    B) photon

    C) antineutrino

    D) graviton

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  • question_answer44) What is the % error in measurement of T of a pendulum, if maximum errors in measurements of (and g are 2% and 4% respectively?

    A) 6%

    B) 3%

    C) 4%

    D) 5%

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  • question_answer45) The masses of neutron and proton are 1.0087 and 1.0073 amu respectively. If the neutrons and protons combine to form helium nucleus of mass 4.0015 amu the binding energy of the helium nucleus will be

    A) 28.4 MeV

    B) 20.8 MeV

    C) 27.3 MeV

    D) 14.2 MeV

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  • question_answer46) The ratio of the energy of a photon of \[~2000\overset{\text{o}}{\mathop{\text{A}}}\,\] wavelength radiation to that of \[~4000\overset{\text{o}}{\mathop{\text{A}}}\,\] radiation is

    A) \[\frac{1}{2}\]

    B) \[\frac{1}{4}\]

    C) \[2\]

    D) \[4\]

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  • question_answer47) Consider the ground state of an atom \[(Z=24)\]. The numbers of electrons with the azimuthal quantum number \[l=1\] and 2 are respectively.

    A) 12 and 4

    B) 12 and 5

    C) 16 and 4

    D) 16 and 5

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  • question_answer48) The half-life of \[1g\] of radioactive sample is 9 h. The time requires for the original sample to reduce to \[0.2g\]is

    A) \[2.09h\]

    B) \[15.6h\]

    C) \[20.9h\]

    D) \[156h\]

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  • question_answer49) As the 5-character of hybridisation orbital increases, the bond angle

    A) increases

    B) decreases

    C) first increases then decreases

    D) does not change

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  • question_answer50) Which of the following halides has maximum melting point?

    A) \[NaF\]

    B) \[NaCl\]

    C) \[NaBr\]

    D) \[NaI\]

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  • question_answer51) Mark out the incorrect statement about liquid junction potential.

    A) LJP is an additional source of potential difference across the interface of two electrolytes.

    B) LJP arises due to different ionic mobility in the different liquids.

    C) LJP is essential part of electrolyte concentration cell.

    D) Salt bridge promotes liquid junction potential.

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  • question_answer52) Temperature of one mole of an ideal gas contained in a closed container is increased from \[300K\]to\[301K\]. Pressure-volume work obtained is

    A) \[8.314J\]

    B) \[2.494\text{ }kJ\]

    C) \[0.8314\text{ }J\]

    D) \[83.14\text{ }J\]

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  • question_answer53) Aqueous solution of sodium bicarbonate can fairly be useful to distinguish aliphatic carboxylic acid from

    A)

    B)

    C)

    D) \[\underset{COOH}{\overset{COOH}{\mathop{|}}}\,\]

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  • question_answer54) Leveling bulb is used during experiment to study kinetics of the dissociation of hydrogen peroxide to ensure

    A) uniform pressure difference between the room and the gases in the system

    B) pressure within the reaction vessel is same as that in the room

    C) same temperature as that of room

    D) None of the above

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  • question_answer55) A hydrogen gas electrode has potential of \[-0.118V\]when \[{{H}_{2}}\]as is bubbled at \[298K\] and \[1\text{ }arm\]in \[HCl\] solution. The pH of \[HCl\] solution is

    A) \[2\]

    B) \[1\]

    C) \[7\]

    D) \[2.7\]

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  • question_answer56) Lassaignes test for the detection of nitrogen fails in

    A) \[N{{H}_{2}}CONH.N{{H}_{2}}.HCl\]

    B) \[N{{H}_{2}}N{{H}_{2}}.HCl\]

    C) \[N{{H}_{2}}CON{{H}_{2}}\]

    D) \[{{C}_{6}}{{H}_{5}}NH.\,N{{H}_{2}}.HCl\]

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  • question_answer57) Among the following, the aromatic compound is

    A)

    B)

    C)

    D)

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  • question_answer58) Among the following compounds (I - III), the correct order of reaction with electrophilic reagent is

    A) \[II>III>I\]

    B) \[III<I<II\]

    C) \[I>II>III\]

    D) \[I=II>III\]

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  • question_answer59) The IUPAC name of \[OCH-C{{H}_{2}}-C{{H}_{2}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-C{{H}_{2}}-COOH\] is

    A) 1-formyl-3-oxopentanoic acid

    B) 5-formyl-3-oxopentanoic acid

    C) 3-oxo-5-formylpentanoic acid

    D) 3-oxo-1-formylpentanoic acid

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  • question_answer60) Geometrical isomerism is shown by

    A) 2-butene

    B) 2-butyne

    C) 2-butanol

    D) butanal

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  • question_answer61) One mole of calcium phosphide with excess water gives

    A) one mole of phosphine

    B) two moles of phosphoric acid

    C) two moles of phosphine

    D) one mole of phosphorus pentoxide

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  • question_answer62) Slow acting nitrogenous fertilizer among the following is

    A) \[CaNCN\]

    B) \[N{{H}_{2}}CON{{H}_{2}}\]

    C) \[KN{{O}_{3}}\]

    D) \[N{{H}_{4}}N{{O}_{3}}\]

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  • question_answer63) Which of the following hydroxide is insoluble in water?

    A) \[Ba{{(OH)}_{2}}\]

    B) \[Ca{{(OH)}_{2}}\]

    C) \[Be{{(OH)}_{2}}\]

    D) \[Mg{{(OH)}_{2}}\]

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  • question_answer64) Which of the following is known as inorganic benzene?

    A) Borazine

    B) Phosphonitrilic acid

    C) Boron nitride

    D) p-dichlorobenzene

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  • question_answer65) Which of the following attacks on glass?

    A) \[HBr\]

    B) \[HCl\]

    C) \[HI\]

    D) HF

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  • question_answer66) The number of \[S-S\] bonds in sulphur trioxide is

    A) three

    B) two

    C) one

    D) zero

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  • question_answer67) The reaction of chloroform with alcoholic \[KOH\] and p-toluidine forms

    A)

    B)

    C)

    D)

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  • question_answer68) In the conversion of starch to ethyl alcohol, the following enzymes are used

    A) invertase, zymase, pepsin

    B) maltase, zymase, yeast

    C) diastase, maltase, zymase

    D) invertase, diastase, zymase

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  • question_answer69) Absolute alcohol (100% alcohol) is prepared by distilling rectified spirit over

    A) \[Na\]

    B) \[CaC{{l}_{2}}\]

    C) \[Mg\]

    D) \[Mg{{(O{{C}_{2}}{{H}_{5}})}_{2}}\]

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  • question_answer70) The reagent used for the preparation of higher ethers from halogenated ethers is

    A) cone. \[{{H}_{2}}S{{O}_{4}}\]

    B) sodium alkoxide

    C) dry silver oxide

    D) Grignard reagent

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  • question_answer71) One mole of the complex compound \[Co{{(N{{H}_{3}})}_{5}}C{{l}_{2}}\] gives 3 moles of ions on dissolution in water. One mole of the same complex reacts with two moles of \[AgN{{O}_{3}}\] solution to yield two moles of \[AgCl(s)\]. The structure of the complex is

    A) \[[Co{{(N{{H}_{3}})}_{3}}C{{l}_{3}}].2N{{H}_{3}}\]

    B) \[[Co{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]Cl.N{{H}_{3}}\]

    C) \[[Co{{(N{{H}_{3}})}_{4}}Cl]C{{l}_{2}}.N{{H}_{3}}\]

    D) \[[Co{{(N{{H}_{3}})}_{5}}Cl]C{{l}_{2}}\]

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  • question_answer72) van-Arkel method of purification of metals involves converting the metal to a

    A) volatile stable compound

    B) non-volatile stable compound

    C) volatile unstable compound

    D) None of the above

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  • question_answer73) For the reaction \[A\xrightarrow{{}}B\], the rate expression is \[r=k{{[A]}^{n}}\]. When the concentration of A is doubled, the rate of reaction is quadrupled. The value of n is

    A) \[1\]

    B) zero

    C) \[3\]

    D) \[2\]

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  • question_answer74) On increasing the temperature, rate of reaction increases due to

    A) more number of collisions

    B) decrease in mean free path

    C) more number of energetic electrons

    D) less number of energetic electrons

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  • question_answer75) \[10\text{ }g\]of a non-volatile solute when dissolved in \[100g\]of benzene raises its boiling point by \[{{1}^{o}}\]. What is the molecular mass of the solute? (\[{{K}_{b}}\] for benzene \[=2.53\,k{{m}^{-1}}\])

    A) \[352\]

    B) \[253\]

    C) \[275\]

    D) \[310\]

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  • question_answer76) \[0.2mole\]of \[HCl\] and \[0.1\text{ }mole\]of \[CaC{{l}_{2}}\] were dissolved in water to make \[500mL\]of solution. The molarity of \[C{{l}^{-}}\] ions in the solution is

    A) \[0.04\text{ }M\]

    B) \[0.8M\]

    C) \[0.4M\]

    D) \[0.08M\]

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  • question_answer77) In Ziegler-Natta polymerisation of ethylene, the active species is

    A) \[AlC{{l}_{3}}\]

    B) \[TiC{{l}_{4}}\]

    C) \[E{{t}_{3}}Al\]

    D) \[Ti(III)\]

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  • question_answer78) Amylopectm is a polymer of

    A) \[\alpha \]-D-glucose

    B) \[\alpha \]-D-fructose

    C) lactose

    D) amylose

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  • question_answer79) A compound \[CuCl\]has fee structure. Its density is \[3.4\text{ }ge{{m}^{-3}}\]. What is the length of unit cell?

    A) \[4.521\overset{\text{o}}{\mathop{\text{A}}}\,~\]

    B) \[5.783\overset{\text{o}}{\mathop{\text{A}}}\,~\]

    C) \[5.213\overset{\text{o}}{\mathop{\text{A}}}\,~\]

    D) \[4.976\overset{\text{o}}{\mathop{\text{A}}}\,~\]

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  • question_answer80) \[2moles\]of \[PC{{l}_{5}}\] were heated in a closed vessel of 2L capacity. At equilibrium, 40% of \[PC{{l}_{5}}\] is dissociated into \[PC{{l}_{3}}\] and\[C{{l}_{2}}\]. The value of equilibrium constant is

    A) \[0.266\]

    B) \[0.366\]

    C) \[2.66\]

    D) \[3.66\]

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  • question_answer81) The solubility product of \[PbC{{l}_{2}}\] at \[{{20}^{o}}C\] is \[1.5\times {{10}^{-4}}\]. Calculate the solubility.

    A) \[3.75\times {{10}^{-4}}\]

    B) \[3.34\times {{10}^{-2}}\]

    C) \[3.34\times {{10}^{2}}\]

    D) None of these

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  • question_answer82) When solid potassium cyanide is added in water then

    A) pH will increase

    B) pH will decrease

    C) pH will remain the same

    D) electrical conductivity will not change

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  • question_answer83) Which of the following is true for the reaction \[{{H}_{2}}O(l)\underset{{}}{\overset{{}}{\longleftrightarrow}}{{H}_{2}}O(g)\] at \[{{100}^{o}}C\] and 1 atm?

    A) \[\Delta E=0\]

    B) \[\Delta H=0\]

    C) \[\Delta H=\Delta E\]

    D) \[\Delta H=T.\Delta S\]

    View Answer play_arrow
  • question_answer84) What is when \[1.00\text{ }mole\]of liquid water vaporises at\[{{100}^{o}}C\]? The heat of vaporization. \[\Delta {{H}^{o}}_{vap}\] of water at \[{{100}^{o}}C\] is \[40.66\text{ }kJ\text{ }mo{{l}^{-1}}\].

    A) \[36.73\text{ }kJ\text{ }mo{{l}^{-1}}\]

    B) \[40.52\text{ }kJ\text{ }mo{{l}^{-1}}\]

    C) \[37.56\text{ }kJ\text{ }mo{{l}^{-1}}\]

    D) \[42.05\text{ }kJ\text{ }mo{{l}^{-1}}\]

    View Answer play_arrow
  • question_answer85) The first-four ionisation energy values of an element are\[191\], \[578\] , \[872\]and\[5962\text{ }kcal\]. The number of valence electrons in the element is

    A) \[1\]

    B) \[2\]

    C) \[3\]

    D) \[4\]

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  • question_answer86) Identify the X in the above reaction

    A)

    B)

    C)

    D)

    View Answer play_arrow
  • question_answer87) Catalyst \[SnC{{l}_{2}}\] / \[HCl\] is used in

    A) Stephens reduction

    B) Cannizaros reaction

    C) Clemmensen reduction

    D) Rosenmunds reduction

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  • question_answer88) \[{{C}_{8}}{{H}_{6}}{{O}_{4}}\xrightarrow[{}]{\Delta }X\xrightarrow[{}]{N{{H}_{3}}}Y\] The compound X is

    A) o-xylene

    B) phthalic acid

    C) phthalic anhydride

    D) salicylic acid

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  • question_answer89) The major product of the reaction between m-dinitrobenzene and \[N{{H}_{4}}HS\] is

    A)

    B)

    C)

    D)

    View Answer play_arrow
  • question_answer90) Fog is a colloidal solution of

    A) liquid particles dispersed in gas

    B) gaseous particles dispersed in liquid

    C) solid particles dispersed in gas

    D) solid particles dispersed in liquid butanal

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  • question_answer91) Algae for the manufacture of iodine is

    A) Diatoms

    B) Laminaria

    C) Nostoc

    D) Polysiphonia

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  • question_answer92) Powdery mildew is caused by a member of

    A) Basidiomycetes

    B) Phycomycetes

    C) Ascomycetes

    D) Deuteromycetes

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  • question_answer93) Apophysis is

    A) upper part of moss capsule

    B) lower part of seta

    C) basal part of sporangium

    D) nutritive tissue of sporangium

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  • question_answer94) Which does not show heterospory?

    A) Pinus

    B) Selaginella

    C) Dryopteris and moss

    D) Sunflower

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  • question_answer95) Which is called a living fossil?

    A) Cycas

    B) Pinus

    C) Selaginella

    D) Sequoia

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  • question_answer96) Scutellum of maize is called

    A) coleorhiza

    B) cotyledon

    C) coleoptile

    D) hypocotyls

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  • question_answer97) In plants like mentha and wild strawberry the stem is

    A) stolon

    B) offset

    C) runner

    D) sucker

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  • question_answer98) Rootstock is

    A) found in Musa and Alocasia

    B) is underground stem

    C) Specialized rhizome growing up vertically instead of horizontally

    D) All of these

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  • question_answer99) Passiflora is an example of

    A) cladode

    B) thorn

    C) stem tendril

    D) phylloclade

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  • question_answer100) Fibrous roots in maize develop from

    A) lower intemodes

    B) lower nodes

    C) upper nodes

    D) None of these

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  • question_answer101) In which of these plants are all roots?

    A) Wolffia

    B) Podostemon

    C) Lemna

    D) Utricularia

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  • question_answer102) Root cap is absent in

    A) mesophytes

    B) hydrophytes

    C) xerophytes

    D) lithophytes

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  • question_answer103) The petiole modified into lamina like structure is found in

    A) Acacia nilotica

    B) Acacia Arabica

    C) Acacia Australasia

    D) Acacia auriculiformis

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  • question_answer104) Placenianon of Mimosa pudica is

    A) basal

    B) marginal

    C) axial

    D) parietal

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  • question_answer105) Rhipidium inflorescence in Solanum nigrum is modification of

    A) uniparous cyme

    B) multiparouschyme

    C) scorpioid

    D) capitulum

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  • question_answer106) The glumes are modified

    A) petals

    B) sepals

    C) tepals

    D) bracts

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  • question_answer107) Catkin inflorescence is characteristic of

    A) Morus

    B) Tritium

    C) Focus

    D) All of these

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  • question_answer108) An aggregate of simple fruit borne by single flower is

    A) berry

    B) cypsela

    C) etaerio

    D) caryopsis

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  • question_answer109) Perisperm is the

    A) remains of nucellus

    B) outer part of embryo sac

    C) degenerated synergid

    D) degenerated secondary nucleus

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  • question_answer110) Winged fruits favouring anemochory occur in

    A) cypsela

    B) samara

    C) regma

    D) siliqua

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  • question_answer111) Syngenesious condition is found in family

    A) Liliaceae

    B) Malvaceae

    C) Compositae

    D) Cruciferae

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  • question_answer112) The tissue in the roots to absorb water and minerals is

    A) epidermal appendages

    B) epidermal extensions

    C) hypodermis

    D) endodermis

    View Answer play_arrow
  • question_answer113) Triradiate vascular bundles can be traced in

    A) monocot roots

    B) dicot root

    C) monocots

    D) dicot stem

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  • question_answer114) In which of the following are inulin crystals found?

    A) Wheat root

    B) Mango root

    C) Dahlia root

    D) Sugarcane root

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  • question_answer115) Two to six xylem and phloem patches are present in

    A) dicot root

    B) monocot root

    C) root hair

    D) None of these

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  • question_answer116) Diffuse porous woods are characteristic of plants growing in

    A) alpine region

    B) cold winter region

    C) temperate climate

    D) tropics

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  • question_answer117) The water vapour of a plant sample or water solution is measured by

    A) auxanometer

    B) psychrometer

    C) osmometer

    D) photometer

    View Answer play_arrow
  • question_answer118) When the temperature of soil is 0?C then the water absorption

    A) increases

    B) decreases

    C) not affected

    D) soil will lose capillary \[{{H}_{2}}O\]

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  • question_answer119) Endosmosis of water occurs when in comparison with the outer solution the water potential of cell sap is

    A) higher

    B) lower

    C) equal

    D) None of these

    View Answer play_arrow
  • question_answer120) Excess of one of them act as antitranspirant

    A) \[{{H}_{2}}\]

    B) \[C{{O}_{2}}\]

    C) \[S{{O}_{2}}\]

    D) \[{{O}_{2}}\]

    View Answer play_arrow
  • question_answer121) Which of the following tree will die first?

    A) Deciduous

    B) Pruned

    C) Girdled

    D) Annual

    View Answer play_arrow
  • question_answer122) Little leaf disease develop due to deficiency of

    A) sodium

    B) copper

    C) calcium

    D) zinc

    View Answer play_arrow
  • question_answer123) For chlorophyll formation most important are

    A) iron and Ca

    B) iron and Mg

    C) Mg and Ca

    D) iron and Na

    View Answer play_arrow
  • question_answer124) Which fractions of the visible spectrum of solar radiations are primarily absorbed by carotenoids of the higher plants?

    A) Blue and green

    B) Green and red

    C) Red and violet

    D) Violet and blue

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  • question_answer125) What is common in NAD, ATP and FMN?

    A) Zn

    B) P

    C) Ca

    D) Mg

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  • question_answer126) Secondary dormancy is due to the absence of

    A) suitable plant

    B) hormones

    C) favourable conditions

    D) unfavourable conditions

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  • question_answer127) Which one has the largest gametophyte?

    A) Oryza

    B) Funaria

    C) Selaginella

    D) Pinus

    View Answer play_arrow
  • question_answer128) Exine of pollen grain is made up of

    A) sporopollenin

    B) pectocellulose

    C) lingo-cellulose

    D) pollenkit

    View Answer play_arrow
  • question_answer129) The pollination is ......... in eel grass

    A) hydrophilous

    B) zoophilous

    C) entomophilous

    D) anemophilous

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  • question_answer130) The parthenocarpy is not advantageous in

    A) mango

    B) coconut

    C) pomegranate

    D) None of these

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  • question_answer131) A plant hormone used for inducing morphogenesis in tissue culture is

    A) ABA

    B) ethylene

    C) gibberellin

    D) cytokinin

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  • question_answer132) Phytoplanktons in the hydrosere constitute

    A) member of climax community

    B) pioneer community

    C) intermediate seral members

    D) All of these

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  • question_answer133) Deme evergreen vegetation of broad sclerophyllous leaves and shrubs with fire resistant resisnous plants is known as

    A) chaparral vegetation

    B) savannah vegetation

    C) steppe grassland

    D) tundra vegetation

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  • question_answer134) The major chunk of nitrogen in nature is fixed by

    A) lightning

    B) symbiotic bacteria

    C) denitrifying bacteria

    D) chemical industries

    View Answer play_arrow
  • question_answer135) A plant which is cultivated by tissue culture technique is

    A) Citrus

    B) apple

    C) pear

    D) guava

    View Answer play_arrow
  • question_answer136) Malaria fever conincides with liberation of

    A) cryptomerozoites

    B) metacryptomerozoites

    C) merozoites

    D) trophozoites

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  • question_answer137) Bath sponges are formed from

    A) Euplectella

    B) dried spongin fibre skeleton

    C) skeleton of Spongilla

    D) dry Leucosolenia

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  • question_answer138) Corals are

    A) most rich fauna

    B) most poor fauna

    C) also found in fresh water

    D) free living ctenophorans

    View Answer play_arrow
  • question_answer139) In Planaria, the structure ocelli is

    A) excretory organ

    B) light sensitive organ

    C) vestigial organ

    D) chemoreceptor organ

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  • question_answer140) In Enterobius vermicularis, the method of transmission is

    A) contamination

    B) congenital

    C) direct

    D) by vector

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  • question_answer141) Which of the following is the marine leech?

    A) Sipunculus

    B) Pontobdella

    C) Hirudo

    D) Polygordices

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  • question_answer142) Amphineuran mollusc is

    A) Chiton

    B) Nautilus

    C) Dentalium

    D) None of these

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  • question_answer143) Proboscis of butterfly is formed from

    A) paraglossae

    B) labrum

    C) maxillae

    D) mandible

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  • question_answer144) The biological name of feather star is

    A) Ophiothrix

    B) Antedon

    C) Petaceros

    D) Clypeaster

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  • question_answer145) Excretory organ of Balanoglossus is

    A) Malpighian tubules

    B) flame cells

    C) nephridia

    D) proboscis gland

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  • question_answer146) Which of the following is commonly called flat fish?

    A) Synaptura

    B) Anabas

    C) Etroplus

    D) Anguilla

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  • question_answer147) Axoloti is the larva of

    A) Ambystoma

    B) Silkworm

    C) Roundworm

    D) Amphioxus

    View Answer play_arrow
  • question_answer148) Which one of these does not belong to the order Galliformes?

    A) Jungle fowl

    B) peacock

    C) Phesant

    D) Green parrot

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  • question_answer149) Hairless mammals are

    A) rodents

    B) chiropterans

    C) primates

    D) cetaceans

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  • question_answer150) Respiratory mesosomes are also known as

    A) mitochondria of bacteria

    B) chondrioids

    C) store house of respiratory enzyme

    D) All of the above

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  • question_answer151) The secretion of macromolecules by fusing a transport vesicle to the plasma membrane is

    A) pinocytosis

    B) phagocytosis

    C) endocytosis

    D) exocytosis

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  • question_answer152) ATP molecule is

    A) nucleosome

    B) nucleoside

    C) nucleotide

    D) deoxyribose sugar

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  • question_answer153) Nickel contributes to the formation of one of the following

    A) urease

    B) dehydrogenase

    C) rubisco protein

    D) nitrate reductase

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  • question_answer154) The prophase-I of the meiotic division has sub-stages.

    A) two

    B) three

    C) five

    D) six

    View Answer play_arrow
  • question_answer155) A submetacentric chromosome has

    A) only one arm

    B) V shaped arms

    C) L shaped arm

    D) Very unequal arms

    View Answer play_arrow
  • question_answer156) Unwinding of DNA is done by

    A) topoisomerase

    B) exonuclease

    C) helicase

    D) ligase

    View Answer play_arrow
  • question_answer157) Transitional epithelium is found in

    A) lungs

    B) liver

    C) urinary bladder

    D) stomach

    View Answer play_arrow
  • question_answer158) Muscles can survive anoxic episodes because they receive ATP in absence of oxygen due to one of the following cycles

    A) glycolysis

    B) ETS

    C) Krebs cycle

    D) HMP pathway

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  • question_answer159) Epidermis is specialized for

    A) respiration

    B) absorption

    C) protection

    D) All of these

    View Answer play_arrow
  • question_answer160) Ileo-caecal valve in rabbit is present in

    A) duodenum

    B) pyloric stomach

    C) sacculus rotundus

    D) rectum

    View Answer play_arrow
  • question_answer161) Book lungs are respiratory organs of

    A) Mollusca

    B) Mammals

    C) Arachnida

    D) Earthworm

    View Answer play_arrow
  • question_answer162) The movement of neurophils to site of inflammation is due to

    A) release of hormone

    B) chemotaxis

    C) activity of antigens

    D) activation of antigens

    View Answer play_arrow
  • question_answer163) P wave in ECG occurs before the

    A) onset of ventricular ejection

    B) end of arterial contraction

    C) beginning of atrial contraction

    D) None of these

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  • question_answer164) Kidney stones are crystals of

    A) sodium chloride

    B) silica

    C) calcium oxalate

    D) potassium chloride

    View Answer play_arrow
  • question_answer165) Nissi granules could be seen in

    A) bone cells

    B) gland cells

    C) myofibrils

    D) neurons

    View Answer play_arrow
  • question_answer166) Suspensory ligaments are found in

    A) brain

    B) eye

    C) ear

    D) kidney

    View Answer play_arrow
  • question_answer167) FSH is

    A) glycoprotein

    B) catecholamine

    C) polypeptide

    D) steroid

    View Answer play_arrow
  • question_answer168) The mammalian corpus luteum produces

    A) oestrogen

    B) progesterone

    C) leuteotropic hormone

    D) luteinizing hormone

    View Answer play_arrow
  • question_answer169) Spiral cleavage is found in

    A) nemertines

    B) annelids

    C) Mollusca

    D) All of these

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  • question_answer170) In animals, chalones are substances responsible for

    A) regeneration

    B) ageing

    C) parthenogenesis

    D) development

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  • question_answer171) If the age pyramid of a population is bell-shaped. It will show

    A) high % of old

    B) high % of children

    C) low % of children

    D) None of the above

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  • question_answer172) In Bhopal gas tragedy, the gas released was

    A) methyl isocyanate

    B) ethyl isocyanate

    C) sodium isocyanate

    D) potassium isocyanate

    View Answer play_arrow
  • question_answer173) The most important component of the oral contraceptive pills is

    A) progesterone

    B) growth hormone

    C) thyroxin

    D) luteinizing hormone

    View Answer play_arrow
  • question_answer174) The average cup of tea contains ......... mg of caffeine

    A) 40

    B) 10

    C) 60

    D) 100

    View Answer play_arrow
  • question_answer175) Osteoporosis can result by long use of

    A) antibiotics

    B) stimulants

    C) steroids

    D) All of these

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  • question_answer176) Ranikhet disease is to

    A) poultry

    B) fish

    C) pigs

    D) honeybee

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  • question_answer177) The rejection of organ transplanting in humans is prevented by using

    A) aspirin

    B) cyclosporine

    C) thrombin

    D) disprin

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  • question_answer178) Which of the following in not water borne disease?

    A) Asthma

    B) Cholera

    C) Amoebiasis

    D) All of these

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  • question_answer179) Which one is a vital stain?

    A) methylene blue

    B) janus green

    C) neutral red

    D) All of these

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  • question_answer180) Which of these institute prepares antivenins?

    A) CDRI, Lucknow

    B) CIT, Lucknow

    C) Hoffkin, Bombay

    D) CIV, Pune

    View Answer play_arrow

   

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