Solved papers for Uttarakhand PMT Uttarakhand PMT Solved Paper-2010

Uttarakhand PMT Solved Paper-2010 Total Questions - 200

1) A large number of bullets are fired in all directions with same speed v. What is the maximum area on the ground on which these bullets will spread

A)

\[\pi \frac{{{V}^{2}}}{g}\]

B)

\[\pi \frac{{{V}^{2}}}{{{g}^{2}}}\]

C)

\[{{\pi }^{2}}\frac{{{V}^{4}}}{{{g}^{2}}}\]

D)

\[{{\pi }^{2}}\frac{{{V}^{2}}}{{{g}^{2}}}\]

View Answer
2) A force vector applied on a body is given by \[\overset{\text{ }\!\!\hat{\ }\!\!\text{ }}{\mathop{\text{F}}}\,\text{=6}\overset{\text{ }\!\!\hat{\ }\!\!\text{ }}{\mathop{\text{i}}}\,\text{-8}\overset{\text{ }\!\!\hat{\ }\!\!\text{ }}{\mathop{\text{j}}}\,\text{+10}\overset{\text{ }\!\!\hat{\ }\!\!\text{ }}{\mathop{\text{k}}}\,\] and acquires an acceleration of 1 m/s2. Then the mass of the body is

A)

10\[\sqrt{2}\]kg

B)

\[2\sqrt{10}\] kg

C)

10kg

D)

20kg

View Answer
3) A 2 kg block is dropped from a height of 0.4 m on a spring of force constant k = 1960 N/m. The maximum compression of the spring is

A)

0.1 m

B)

0.2 m

C)

0.3m

D)

0.4m

View Answer
4) A solid sphere of mass 2 kg rolls up a \[30{}^\circ \] incline with an initial speed 10 m/s. The maximum height reached by the sphere is\[(g=10m/{{s}^{2}})\]

A)

3.5m

B)

7.0m

C)

10.Sm

D)

14.0m

View Answer
5) The ratio of the adiabatic bulk modulus to the isothermal bulk modulus of a perfect gas is equal to (symbols have their usual meanings)

A)

\[{{C}_{p}}-{{C}_{v}}\]

B)

\[\frac{{{C}_{p}}}{{{C}_{v}}}\]

C)

\[\frac{{{C}_{v}}}{{{C}_{p}}}\]

D)

\[\sqrt{\frac{{{C}_{p}}}{{{C}_{v}}}}\]

View Answer
6) A simple pendulum has time period T. The pendulum is completely immersed in a non-viscous liquid whose density is one-tenth, of that of the material of the bob. The time period of the pendulum immersed in liquid is

A)

\[T\]

B)

\[\sqrt{\frac{9}{10}}T\]

C)

\[\sqrt{\frac{10}{9}T}\]

D)

\[\frac{T}{10}\]

View Answer
7) How many times more intense is a 90 dB sound than a 40 dB sound?

A)

2.5

B)

5

C)

50

D)

10s

View Answer
8) If\[x=\frac{{{\varepsilon }_{0}}lv}{t}\] where \[{{\varepsilon }_{0}}\] is the permittivity of free space, v is length, v is potential difference and t is time. The dimensions of X are the same as that of

A)

charge

B)

resistance

C)

voltage

D)

current

View Answer
9) An electric dipole placed in a uniform electric field will have minimum potential energy when the dipole moment is inclined to the field at an angle

A)

\[\pi \]

B)

\[\frac{\pi }{2}\]

C)

zero

D)

\[\frac{3\pi }{2}\]

View Answer
10) In the figure, the equivalent capacitance between A and B is

A)

3.75 \[\pi F\]

B)

5.25 \[\pi F\]

C)

6.5 \[\pi F\]

D)

10.5 \[\pi F\]

View Answer
11) If we add impurity to a metal those atoms also deflect electrons. Therefore,

A)

the electrical and thermal conductivities both increase

B)

the electrical and thermal conductivities both decrease

C)

the electrical conductivity increases but thermal conductivity decreases

D)

the electrical conductivity decreases but thermal conductivity increases

View Answer
12) A toroidal solenoid with an air core has an average radius of 15 cm, area of cross-section 12 cm2 and 1200 turns. Ignoring the field variation across the cross-section of the toroid, the self-inductance of the toroid is

A)

4.6 mH

B)

6.9 mH

C)

2.3 mH

D)

9.2 mH

View Answer
13) Two plane mirrors are placed perpendicular to each other. A ray strikes one mirror and after reflection from the second mirror will be

A)

perpendicular to the original ray

B)

parallel to the original ray

C)

at\[45{}^\circ \]to the original ray

D)

can be at any angle to the original ray

View Answer
14) An electron moving with velocity\[2\times {{10}^{7}}m/s\] describes a circle in a magnetic field of strength\[2\times {{10}^{-2}}T\].    If   \[\left( \frac{e}{m} \right)\] of   electron   is\[1.76\times {{10}^{11}}C/kg\]then the diameter of the circle is nearly

A)

1.1 cm

B)

1.1 mm

C)

1.1m

D)

11cm

View Answer
15) An electron makes transition inside a hydrogen atom. The orbital angular momentum of the electron may change by

A)

\[h\]

B)

\[\frac{h}{3\pi }\]

C)

\[\frac{h}{2\pi }\]

D)

\[\frac{h}{4\pi }\]

View Answer
16) The transfer ratio \[\beta \] of a transistor is 50. The input resistance of the transistor when used in the common emitter mode is 1 \[K\Omega \] The peak value of the collector alternating current for an input peak voltage of 0.01V is

A)

100 \[\mu \]A

B)

500 \[\mu \]A

C)

0.01 \[\mu \]A

D)

0.25 \[\mu \]A

View Answer
17) A combination of convex and concave lenses has power 4 D. If the convex lens has power 5 D, the focal length of the concave lens will be

A)

100cm

B)

100 cm

C)

\[-1\text{ }cm\]

D)

\[\frac{100}{-9}\]cm

View Answer
18) A scooter of mass 120 kg is moving with a uniform velocity of 108 km/h. The force required to stop the vehicle in 10 s is

A)

360 N

B)

720 N

C)

180 N

D)

\[120\times 10.8\text{ }N\]

View Answer
19) A heat engine absorbs heat at\[327{}^\circ C\]and exhausts heat at\[127{}^\circ C\]. The efficiency of engine is \[\eta \] and the maximum amount of work performed by the engine per kilocalorie of heat input is W. Then,

A)

\[\eta \]=0.38

B)

\[\eta \]=0.88

C)

W=1596J

D)

W=1400J

View Answer
20) A simple pendulum with length L and mass of the bob is vibrating with an amplitude a. Then the maximum tension in the string is

A)

mg

B)

  \[mg\left[ 1+{{\left( \frac{a}{L} \right)}^{2}} \right]\]

C)

\[mg{{\left[ 1+\frac{a}{2L} \right]}^{2}}\]

D)

  mg\[{{\left[ 1+\left( \frac{a}{L} \right) \right]}^{2}}\]

View Answer
21) Two charged conducting spheres of radii \[{{R}_{1}}\] and\[{{R}_{2}}\] separated by a large distance are connected by a long wire. The ratio of the charges on them is

A)

\[\frac{{{R}_{1}}}{{{R}_{2}}}\]

B)

\[\frac{{{R}_{2}}}{{{R}_{1}}}\]

C)

\[\frac{{{R}_{{{1}^{2}}}}}{{{R}_{{{2}^{2}}}}}\]

D)

\[\frac{{{R}_{{{2}^{2}}}}}{{{R}_{{{1}^{2}}}}}\]

View Answer
22) A proton and an a-particle, accelerated through the same potential difference, enter a region of uniform magnetic field normally. If the radius of the proton orbit is 10 cm, then radius of a-orbit is

A)

10cm

B)

\[10\sqrt{2}\]cm

C)

20cm

D)

\[5\sqrt{2}\] cm

View Answer
23) In a noiseless transformer, an alternating current of 2 A is flowing in the primary coil. The number of turns on the primary and secondary coils are 100 and 20 respectively. The value of the current in the secondary coil is

A)

0.08 A

B)

0.4 A

C)

5 A

D)

10 A

View Answer
24) A solenoid 30 cm long is made by winding 2000 loops of wire on an iron rod whose cross-section is 1.5 cm2. If the relative permeability of the iron is 6000, what is the self-inductance of the solenoid?

A)

1.5 H

B)

2.5 H

C)

3.5 H

D)

0.5 H

View Answer
25) A luminous object is placed 20 cm from surface of a convex mirror and plane mirror is set, so that virtual images formed in two mirrors coincide. If plane mirror is at a distance of 12 cm from object, then focal length of convex mirror is

A)

5cm

B)

10cm

C)

20 cm

D)

40 cm

View Answer
26) In a shunted ammeter, only 10% of current passes through the galvanometer of resistance G. The resistance of the shunt is

A)

\[9G\]

B)

\[10G\]

C)

\[\frac{G}{9}\]

D)

\[\frac{G}{10}\]

View Answer
27) The output Y of the logic circuit shown in figure is best represented as

A)

\[\overline{A}+\overline{B.C}\]

B)

\[A+\overline{B.}\]

C)

\[\overline{A+B.C}\]

D)

\[A+\overline{B.}\,C\]

View Answer
28) A resistor of 6 k\[\Omega \] with tolerance 10% and another of 4 k\[\Omega \] with tolerance 10% are connected in series. The tolerance of combination is about

A)

5%

B)

10%

C)

12%

D)

15%

View Answer
29) A stone attached to a rope of length 80 cm is rotated in vertical plane with a speed of 240 rpm. At the moment when the velocity of the stone is directed vertically upwards, the rope ruptures. To what further height does the stone rise? (The air resistance should be neglected)

A)

10.3m

B)

41.2m

C)

20.4m

D)

24.9m

View Answer
30) Two bodies of masses 10 kg and 100 kg are separated by a distance of 2m. The gravitational potential at the mid-point on the line joining the two is

A)

\[7.3\times {{10}^{-7}}\text{J/kg}\]

B)

\[7.3\times {{10}^{-8}}\text{J/kg}\]

C)

\[7.3\times {{10}^{-9}}\text{J/kg}\]

D)

\[7.3\times {{10}^{-6}}\text{J/kg}\]

View Answer
31) A vessel has 6 g of hydrogen at pressure p and temperature 500 K. A small hole is made in it so, That hydrogen leaks out. How much hydrogen leaks out if the final pressure is \[\frac{P}{2}\] and temperature falls to 300 K?

A)

2 g

B)

3 g

C)

4 g

D)

1 g

View Answer
32) For an enclosure maintained at 1000 K, the maximum radiation occurs at wavelength \[{{\lambda }_{m.}}\] If the temperature is raised to 2000 K, the peak will shift to

A)

\[{{\lambda }_{m.}}/2\]

B)

\[2{{\lambda }_{m.}}\]

C)

\[{{2}^{4}}{{\lambda }_{m.}}\]

D)

\[{{2}^{-4}}{{\lambda }_{m.}}\]

View Answer
33) An electron moving in a circular orbit of radius R, with a period T is equivalent to a magnetic dipole of dipole moment

A)

\[\frac{2\pi \operatorname{Re}}{T}\]

B)

\[\frac{\pi eR}{T}\]

C)

\[\frac{\pi e{{R}^{2}}}{T}\]

D)

\[\pi {{R}^{2}}_{e}T\]

View Answer
34) A coil of area\[5c{{m}^{2}}\]and of 20 turns is placed in uniform magnetic field of\[{{10}^{3}}T\]The normal to the plane of the coil makes an angle of\[60{}^\circ \]with the magnetic field. The flux in max well through the coil, is

A)

\[{{10}^{5}}\]

B)

\[5\times {{10}^{4}}\]

C)

\[2\times {{10}^{4}}\]

D)

\[5\times {{10}^{3}}\]

View Answer
35) A coil has an inductance of 0.7 H and is joined in series with a resistance of 220 \[\Omega \] When an alternating emf of 220 Vat 50 cps is applied to it, then the wattless component of the current in the circuit is

A)

5 A

B)

0.5 A

C)

0.7 A

D)

7 A

View Answer
36) An electron jumps from the 4th orbit to the 2nd orbit of hydrogen atom. Given the Rydbergs constant\[R={{10}^{5}}c{{m}^{-1}},\]the frequency in Hz of the emitted radiation will be

A)

\[\frac{3}{10}\times {{10}^{5}}\]

B)

\[\frac{16}{3}\times {{10}^{15}}\]

C)

\[\frac{9}{16}\times {{10}^{15}}\]

D)

\[\frac{3}{4}\times {{10}^{15}}\]

View Answer
37) The decay constant K of a radioactive sample is the probability of decay of an atom in unit time. Then,

A)

\[\lambda \]decreases as the atom becomes older

B)

\[\lambda \]increases as the age of atoms increases

C)

\[\lambda \]independent of the age of atoms

D)

\[\lambda \]behaviour of \[\lambda \]A with time depends on the nature of the activity

View Answer
38) 38. If a surface has work function 4.0 eV, what is the maximum velocity of electrons liberated from the surface when it is irradiated with ultraviolet radiation of wavelength 0.2 \[\mu m\]?

A)

\[4.4\times {{10}^{5}}m/s\]

B)

\[8.8\times {{10}^{7}}m/s\]

C)

\[8.8\times {{10}^{5}}m/s\]

D)

\[4.4\times {{10}^{7}}m/s\]

View Answer
39) An installation consisting of an electric motor driving a water pump lifts 75 L of water per second to a height of 4.7 m. If the motor consumes a power of 5 kW, then the efficiency of the installation is

A)

39%

B)

69%

C)

93%

D)

96%

View Answer
40) The Keplers second law states that the straight line joining the planet to the sun sweeps out equal areas in equal times. The statement is equivalent to saying that

A)

total acceleration is zero

B)

transverse acceleration is zero

C)

longitudinal acceleration is zero

D)

radial acceleration is zero

View Answer
41) The number of possible structures of amines\[({{C}_{7}}{{H}_{9}}N)\]having one benzene ring is

A)

5

B)

3

C)

4

D)

6

View Answer
42) Vitamin\[{{B}_{1}}\]is

A)

riboflavin

B)

cobalamin

C)

thiamine

D)

pyridoxine

View Answer
43) During roasting of zinc blende, it converts to

A)

\[ZnO\]

B)

\[ZnS{{O}_{4}}\]

C)

\[ZnC{{O}_{3}}\]

D)

\[Zn\]

View Answer
44) \[Xe{{F}_{4}}\]reacts with water at\[-80{}^\circ C\]to give

A)

\[XeO{{F}_{2}}\]

B)

\[XeO{{F}_{4}}\]

C)

\[Xe{{O}_{3}}\]

D)

\[Xe{{O}_{2}}{{F}_{2}}\]

View Answer
45) The number of\[POP\]bonds in the structure of phosphorus pentaoxide and phosphorus trioxide are respectively

A)

6,6

B)

5,5

C)

5, 6

D)

6, 5

View Answer
46) The most unsymmetrical and symmetrical systems are respectively

A)

tetragonal, cubic

B)

triclinic, cubic

C)

rhombohedral, hexagonal

D)

orthorhombic, cubic

View Answer
47) In the reaction,\[HN{{O}_{3}}\]+Rpio\[\xrightarrow[{}]{{}}\]\[4HP{{O}_{3}}+x,\]the product X is

A)

\[N{{O}_{2}}\]

B)

\[{{N}_{2}}{{O}_{5}}\]

C)

\[{{N}_{2}}{{O}_{3}}\]

D)

\[{{H}_{2}}O\]

View Answer
48) The basicity of orthophosphoric acid is

A)

2

B)

4

C)

3

D)

5

View Answer
49) In the radioactive change, \[_{z}{{p}^{A}}{{\xrightarrow[{}]{{}}}_{z+1}}{{Q}^{A}}{{\xrightarrow[{}]{{}}}_{z-1}}{{R}^{A-4}}{{\xrightarrow[{}]{{}}}_{z-1}}{{S}^{A-4}},\] the radiations emitted in sequence are

A)

\[\alpha ,\beta ,\gamma \]

B)

\[\beta ,\alpha ,\gamma \]

C)

\[\gamma ,\alpha ,\beta \]

D)

\[\beta ,\gamma ,\alpha \]

View Answer
50) In contact process of manufacture\[{{H}_{2}}S{{O}_{4}},\]the catalyst used is

A)

iron

B)

\[{{V}_{2}}{{O}_{5}}\]

C)

chromium

D)

oxides of nitrogen

View Answer
51) Which of the following is pseudohalogen?

A)

\[I{{F}_{7}}\]

B)

\[{{(CN)}_{2}}\]

C)

\[IC{{l}_{2}}\]

D)

\[I_{3}^{-}\]

View Answer
52) Correct formula of calomel is

A)

\[HgC{{l}_{2}}\]

B)

\[HgC{{l}_{2}}.{{H}_{2}}O\]

C)

\[H{{g}_{2}}C{{l}_{2}}\]

D)

\[HgS{{O}_{4}}\]

View Answer
53) The angle in case of a water molecule is approximately

A)

\[90{}^\circ \]

B)

\[180{}^\circ \]

C)

\[105{}^\circ \]

D)

\[75{}^\circ \]

View Answer
54) Which one is an example of globular protein?

A)

Keratin

B)

Collagen

C)

Insulin

D)

Myosin

View Answer
55) Which of the following reaction takes place when a mixture of concentrated\[HN{{O}_{3}}\]and \[{{H}_{2}}S{{O}_{4}}\]reacts with benzene at 350K?

A)

Sulphonation

B)

Nitration

C)

Hydrogenation

D)

Dehydration

View Answer
56) How many chiral carbon atoms are present in 2, 3, 4 - Trichloropentane?

A)

Three

B)

Two

C)

One

D)

Four

View Answer
57) Geometry of reaction intermediate in\[{{S}_{N}}1\]reaction is

A)

tetrahedral

B)

planar

C)

triangular bipyramidal

D)

None of the above

View Answer
58) In acetylene molecule, the two carbon atoms are linked by

A)

One-o-bond and two Ti-bonds

B)

two o-bonds and one TC-bond

C)

three o-bonds

D)

three TC-bonds

View Answer
59) In a galvanic cell, which one of the following statements is not correct?

A)

Anode is negatively charged

B)

Cathode is positively charged

C)

Reduction takes place at the anode

D)

Reduction takes place at the cathode

View Answer
60) The zig-zag motion of colloidal particles was first observed by

A)

John Tyndall

B)

Robert Brown

C)

Zsigmondy

D)

Ostwald

View Answer
61) Which of the following is not present in DNA?

A)

Adenine

B)

Guanine

C)

Uracil

D)

Thymine

View Answer
62) Oxygen and ozone are

A)

isotopes

B)

isomers

C)

isobars

D)

allotropes

View Answer
63) Which of the following is weakest acid?

A)

B)

C)

D)

View Answer
64) The reaction between an alkyl halide and an alkoxide ion to give an ether is known as

A)

Williamsons synthesis

B)

Clemmensens reduction

C)

Fittig reaction

D)

Wurtz reaction

View Answer
65) \[C\xrightarrow[{}]{{{H}_{2}}O}D\] Here, D is

A)

\[C{{H}_{3}}\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{CH}}\,OC{{H}_{2}}C{{H}_{3}}\]

B)

\[C{{H}_{3}}O\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{CH}}\,C{{H}_{2}}C{{H}_{3}}\]

C)

\[C{{H}_{3}}\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{CH}}\,C{{H}_{2}}C{{H}_{2}}OH\]

D)

\[C{{H}_{3}}C{{H}_{2}}\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{CH}}\,C{{H}_{2}}OH\]

View Answer
66) \[[CoBr{{(N{{H}_{3}})}_{5}}]S{{O}_{4}}\]and\[[CoS{{O}_{4}}{{(N{{H}_{3}})}_{5}}]Br\]are related to each other as

A)

ionisation isomers

B)

linkage isomers

C)

coordinatiom isomers

D)

optical isomiers

View Answer
67) Which of the following atoms has no neutron in its nucleus?

A)

Helium

B)

Lithium

C)

Protium

D)

Tritium

View Answer
68) With increasing bond order, stability of a bond

A)

increases

B)

decreases

C)

remains unaltered

D)

None of these

View Answer
69) Urotropine is obtained by the reaction of\[N{{H}_{3}}\]with

A)

\[C{{H}_{3}}OH\]

B)

\[HCHO\]

C)

\[C{{H}_{3}}CHO\]

D)

\[C{{H}_{3}}COC{{H}_{3}}\]

View Answer
70) Wolff-Kishner reaction is used for the reduction of

A)

carboxylic acids

B)

carbonyl compounds

C)

olefins

D)

nitro compounds

View Answer

71) 4-bromo-l-butanol [A] can be converted into 5-hydroxy pentanoic acid [B] by following method [s]

\[I.\]\[A\xrightarrow[{}]{Mg/ether}\xrightarrow[(ii){{H}_{3}}{{O}^{+}}]{(i)C{{O}_{2}}}B\]

\[II.\]\[A\xrightarrow[{}]{KCN}\xrightarrow[{}]{{{H}_{3}}{{O}^{+}}}B\]

\[III.\]\[A\xrightarrow[{}]{Aq.\,KOH}\xrightarrow[{}]{KMn{{O}_{4}}/{{H}^{+}}}B\]

Select the correct alternate

\[I,\text{ }II,\text{ }III\]

\[I,\text{ }II\]

\[II,\text{ }III\]

\[II\]

View Answer

72) Oil of winter green is

A)

B)

C)

D)

View Answer
73) \[\alpha -D-\]glucose and\[\beta -D-\]glucose have a specific rotation of\[+112{}^\circ \]and\[+19.2{}^\circ \] respectively. In aqueous solution, the rotation becomes\[+52{}^\circ \]. This is known as

A)

racemisation

B)

mutarotation

C)

inversion

D)

enolisation

View Answer
74) Time required to decompose\[S{{O}_{2}}C{{l}_{2}}\]to half of its initial amount is 60 min. If the decomposition is a first order reaction, what is the rate constant of the reaction?

A)

\[1.925\times {{10}^{-4}}s\]

B)

\[2.092\times {{10}^{-4}}{{s}^{-1}}\]

C)

\[1.925\times {{10}^{-4}}{{s}^{-1}}\]

D)

\[2.925\times {{10}^{-4}}{{s}^{-1}}\]

View Answer
75) Which of the following has a bond order of 1.75?

A)

\[ClO_{3}^{-}\]

B)

\[ClO_{4}^{-}\]

C)

\[NO_{3}^{-}\]

D)

\[CO_{3}^{2-}\]

View Answer
76) The ionisation energy of nitrogen is larger than that of oxygen because of

A)

greater attraction of electrons by the nucleus

B)

the size of nitrogen atom being smaller

C)

the half-filled p-orbitals possess extra stability

D)

greater penetration effect

View Answer
77) Which one is the strongest reducing agent?

A)

\[N{{H}_{3}}\]

B)

\[As{{H}_{3}}\]

C)

\[Sb{{H}_{3}}\]

D)

\[P{{H}_{3}}\]

View Answer
78) Preparation of ethane by electrolysis of aqueous solution of potassium acetate is called

A)

Wurtz reaction

B)

Kolbes electrolysis

C)

Grignard reaction

D)

Sabatier-Sendersens reaction

View Answer
79) What is density of\[S{{O}_{2}}\]gas at\[27{}^\circ C\]and 2 arm pressure? (Atomic weight\[S=32,\text{ O}=16,\] \[R=0.0821\text{ }L\text{ }atm\text{ }{{K}^{-1}}mo{{l}^{-1}}\])

A)

5.0246

B)

4.1246

C)

3.0196

D)

5.1969

View Answer
80) 38.00 mL of moist nitrogen gas were collected at\[27{}^\circ C\]and 746.5 mm pressure. What is the volume of the gas at\[0{}^\circ C\]and 760 mm pressure? (Aq. tension at\[27{}^\circ C\]is 26.5 mm).

A)

32.76

B)

23.76

C)

12.05

D)

11.56

View Answer
81) What is the enthalpy of hydrogenation of ethylene, given that the enthalpy of combustion of ethylene, hydrogen and ethane are\[-1410.0,-286.2\]and\[-1560.6\text{ }kJ\text{ }mo{{l}^{-1}}\]respectively at 298 K?

A)

135.6

B)

\[-135.6\]

C)

125.6

D)

\[-125.6\]

View Answer
82) What is the pH value of\[0.03\text{ }N\text{ }HCl\]solution?

A)

2.5229

B)

3.2229

C)

1.5229

D)

None of these

View Answer
83) The\[{{H}_{2}}{{O}^{+}}\]ion concentration of a solution having pH 6.58 is

A)

\[2.63\times {{10}^{7}}\]

B)

\[2.63\times {{10}^{-7}}\]

C)

\[36.2\times {{10}^{7}}\]

D)

\[36.2\times {{10}^{-7}}\]

View Answer
84) One mole of magnesium nitride on reaction with an excess of water gives

A)

one mole of ammonia

B)

one mole of nitric acid

C)

two moles of ammonia

D)

two moles of nitric acid

View Answer
85) Photoelectric effect is maximum in

A)

Cs

B)

Na

C)

K

D)

\[Li\]

View Answer
86) Fused ionic compounds

A)

are insulators

B)

are used as semiconductors

C)

conduct electricity

D)

do not conduct electricity

View Answer
87) The bonds between P atoms and\[Cl\]atoms in\[PC{{l}_{5}}\]are likely to be

A)

ionic with no covalent character

B)

covalent with some ionic character

C)

covalent with no ionic character

D)

ionic with some metallic character

View Answer
88) Covalent compounds are soluble in

A)

polar solvents

B)

non-polar solvents

C)

concentrated acids

D)

all solvents

View Answer
89) An ingredient of baking powder is

A)

sodium bicarbonate

B)

sodium chloride

C)

borax

D)

sodium carbonate

View Answer
90) The most reactive allotrope of phosphorus is

A)

violet phosphorus

B)

white phosphorus

C)

red phosphorus

D)

scarlet phosphorus

View Answer
91) Correct order representing electro negativities of halogens is

A)

\[F<Cl<Br<I\]

B)

\[F>Cl>Br>I\]

C)

\[F>Cl<Br<I\]

D)

\[F<Cl>Br>I\]

View Answer
92) For a first order reaction,\[A\to \]products, if k is the rate constant then the half-life period of the reaction is

A)

\[\frac{1}{k}\log \frac{[A]}{{{[A]}_{0}}}\]

B)

\[\frac{1}{k}\frac{1}{[A]}\]

C)

\[\frac{0.693}{k}\]

D)

\[\frac{\log 2}{k}\]

View Answer
93) Dead burnt plaster is

A)

\[CaS{{O}_{4}}.2{{H}_{2}}O\]

B)

\[MgS{{O}_{4}}.2{{H}_{2}}O\]

C)

\[CaS{{O}_{4}}.1/2{{H}_{2}}O\]

D)

\[CaS{{O}_{4}}\]

View Answer
94) The active constituent of bleaching powder is

A)

\[Ca{{(OCl)}_{2}}\]

B)

\[Ca(OCl)Cl\]

C)

\[Ca{{(Cl{{O}_{2}})}_{2}}\]

D)

\[Ca(Cl{{O}_{2}})Cl\]

View Answer
95) Which of the following is applied in this reaction? \[C{{H}_{3}}CHBrC{{H}_{2}}C{{H}_{3}}\xrightarrow[{}]{Alc.\,KOH}\] (i) \[C{{H}_{3}}CH=CHC{{H}_{3}}\]major product (ii)\[C{{H}_{2}}=CHC{{H}_{2}}C{{H}_{3}}\]minor product

A)

Hermanns rule

B)

Kharasch effect

C)

Saytzeffs rule

D)

Markownikoffs rule

View Answer
96) Which of the following compound is unknown?

A)

\[NC{{l}_{5}}\]

B)

\[N{{l}_{3}}\]

C)

\[SbC{{l}_{3}}\]

D)

\[NC{{l}_{3}}\]

View Answer
97) Group displacement law was given by

A)

Becquerel

B)

Rutherford

C)

Soddy and Fajan

D)

Madam Curie

View Answer
98) Which of the following represents the Lewis structure of\[{{N}_{2}}\]molecule?

A)

B)

C)

D)

View Answer
99) Cellulose is a polymer containing the monomer

A)

ribose

B)

glucose

C)

fructose

D)

starch

View Answer
100) Minamata disease is due to pollution of

A)

organic waste into drinking water

B)

oil spill in water

C)

industrial waste mercury into fishing water

D)

arsenic into the atmosphere

View Answer
101) The viruses with nucleic acid but without protein coat are known as

A)

viroids

B)

virions

C)

capsomeres

D)

prions

View Answer
102) Identify the vector suitable to clone long fragments of DNA.

A)

Phage vectors

B)

Bacterial plasmids

C)

Yeast plasmids

D)

Cosmids

View Answer
103) Genetic recombination by transduction in bacterial was discovered first in

A)

Salmonella typhimurium

B)

Escherichia coli

C)

Streptococcus pneumoniae

D)

Agrobactermm tumefaciens

View Answer
104) The brown hair present at the base of the petiole of Pteris are called

A)

setae

B)

ramenta

C)

spines

D)

stipules

View Answer
105) Number of peristomial teeth in Funaria capsule is

A)

16

B)

32

C)

64

D)

128

View Answer
106) Development of haploid plants from totipotent pollen is called

A)

androgenesis

B)

parthenocarpy

C)

emasculation

D)

somatic hybridization

View Answer
107) Grass stem elongates after initial growth due to

A)

lateral meristem

B)

secondary meristem

C)

intercalary meristem

D)

apical meristem

View Answer
108) Protoplast lacks

A)

cytoplasm

B)

nucleus

C)

plasma membrane

D)

cell wall

View Answer
109) An example of physiological xerophyte is

A)

Salvinia

B)

Euphorbia

C)

Salicornia

D)

Agave

View Answer
110) Blood glands of Pheretima are located in which segments?

A)

1, 2 and 3

B)

3, 4 and 5

C)

4, 5 and 6

D)

10, 11 and 12

View Answer
111) Silicates consumed along with food by Pheretima and excreted by

A)

flame cells

B)

chloragogen cells

C)

intestinal cells

D)

basal cells

View Answer
112) Association between barnacles and Limulus is

A)

symbiosis

B)

antagonism

C)

ectocommens.alism

D)

endocommensalism

View Answer
113) The cells are chlorophyllous, fewer in number, unique in shape and inner walls thick. This decription fits into

A)

subsidiary cells

B)

guard cells

C)

passage cells

D)

bulliform cells

View Answer
114) The scientific name of lung fluke of man is

A)

Hymenolepis nana

B)

Schistosomum haematobium

C)

Paragonimus westermani

D)

Echinococcus granulosus

View Answer
115) Plasmodium falciparum causes which type of malaria?

A)

Quartan

B)

Pernicious

C)

Tertian

D)

Benign tertian

View Answer
116) The structures which join two bones at joints are made up of

A)

elastic fibres

B)

collagen fibres

C)

fibrocytes

D)

chondrocytes

View Answer
117) Development of mesoderm in the form of muscles in body wall, leaving alimentary canal non-muscular is the feature of

A)

acoelomates

B)

pseudocoelomates

C)

enterocoelomates

D)

schizocoelomates

View Answer
118) Dermatobiasis in cattle is caused by

A)

maggots of bot fly

B)

wriggler of mosquito

C)

nits of head louse

D)

drones of honey bee

View Answer
119) The type of vascular bundles in the stem of Dracaena is

A)

radial

B)

bicollateral

C)

amphicribal

D)

amphivasal

View Answer
120) Schuffners dots produced by Plasmodium are

A)

reserve food

B)

antibodies

C)

hormones

D)

antigens

View Answer
121) Which of the following has thorns bearing leaves and flowers on them?

A)

Duranta

B)

Artabotrys

C)

Carissa

D)

Bougainvillea

View Answer
122) When malic acid is the respiratory substrate

A)

the amount of carbon dioxide released is more than the oxygen consumed

B)

the amount of carbon dioxide released is less than the oxygen consumed

C)

the amount of carbon dioxide released is equal to oxygen consumed

D)

carbon dioxide is not released

View Answer
123) The risk of spoilage is less in salted pickles because of

A)

guttation

B)

plasmolysis

C)

imbibition

D)

diffusion

View Answer
124) In photosynthesis electron transport system, manganese ions are associated with

A)

oxygen evolving complex

B)

cytochrome \[{{f}_{0}}-{{f}_{1}}\]

C)

cytochromehy bg \[{{b}_{6}}-f\]complex

D)

plastoquinones

View Answer
125) Which of the following is needed both in photosynthesis and respiration?

A)

Chlorophyll

B)

Carbon dioxide

C)

Oxygen

D)

Cytochrome

View Answer
126) Identify the trisaccharide

A)

Mannose

B)

Maltose

C)

Raffinose

D)

Galactose

View Answer
127) Karyotype means a

A)

single haploid set of chromosomes of an organisms

B)

diagrammatic representation of the chromosome

C)

genes constituting a single set of chromosomes

D)

type of nucleus of an organism

View Answer
128) The underground stem of this genus is a rhizome

A)

Allium

B)

Gloriosa

C)

Scilla

D)

Lilium

View Answer
129) The characteristic fruit type in Asteraceae is

A)

carcerulus

B)

capsule

C)

cypsela

D)

caryopsis

View Answer
130) Mode of feeding in tunicates

A)

acrophagus

B)

parasitic

C)

ciliary or filter

D)

myxotrophic

View Answer
131) Valve of Thebesius is present in the heart of

A)

fish

B)

frog

C)

Chamaeleon

D)

rabbit

View Answer
132) Soluble fibrinogen is converted into insoluble fibrin by the action of

A)

thromboplastin

B)

cephalin

C)

heparin

D)

thrombin

View Answer
133) Silicosis is caused by

A)

acid rain

B)

depletion of ozone

C)

inhalation of aerosols

D)

inhalation of sulphur dioxide

View Answer
134) The plasmid \[_{\text{p}}\text{B}{{\text{R}}_{\text{322}}}\] used in biotechnology is

A)

yeast

B)

\[{{\text{M}}^{\text{32}}}\]phage

C)

parasite

D)

cloning vehicle

View Answer
135) In Cycas, diploxylic condition is found in

A)

stem

B)

root

C)

coralloid root

D)

leaflet

View Answer
136) The cyst wall of Euglena is made up of

A)

carbohydrates

B)

lipoproteins

C)

lipids

D)

histones

View Answer
137) Western blot test is done for the conformation of

A)

malaria

B)

filaria

C)

anaemia

D)

AIDS

View Answer
138) Separation of sick and non-productive birds from healthy and productive birds is known as

A)

deworming

B)

culling

C)

dubbing

D)

cannibalism

View Answer
139) In Spirogyra, a brief period of tetranucleate condition is found in

A)

hold fast

B)

gametangium

C)

vegetative cell

D)

germinating zygote

View Answer
140) An example for holandric inheritance is

A)

epidermolysis

B)

Turners syndrome

C)

haemophilia

D)

webbed toes

View Answer
141) For a gene with two alleles, if the gene frequency of recessive gene is 0.2. What is the genotypic frequency of homozygous dominant?

A)

0.064

B)

0.8

C)

0.64

D)

0.32

View Answer
142) The number of lobes in left lung of rabbit is

A)

two

B)

three

C)

four

D)

five

View Answer
143) When one gene influences the expression of another non-allelic gene, it is termed as

A)

epistasis

B)

poly multiple allelism

C)

segregation

D)

pleiotropy

View Answer
144) An example of sex-influenced inheritance is

A)

haemophilia

B)

colour blindness

C)

baldness

D)

Downs syndrome

View Answer
145) Which one of the following is a reference to xenogamy?

A)

Ripening of androecium earlier to gynoecium

B)

Pollen grains of one flower reaching the stigma of another flower present on the same plant

C)

Pollen grains of one flower, reaching the stigma of another flower present on a different plant of the same species

D)

The inability of pollen to germinate on the stigma of the same flower

View Answer
146) Which one of the following is useful in identifying the different strains of causal microbe of an infectious disease?

A)

Colchicine

B)

Agrobacterium

C)

Complementary DNA

D)

Crystal violet

View Answer
147) The photoperiodic cycles of 6 hours of dark period and 18 hours of light period induce flower formation in

A)

Xanthium

B)

tobacco

C)

soybean

D)

Beta vulgaris

View Answer
148) When one molecule of glucose is completely oxidised during aerobic respiration, how many molecules of carbon dioxide are released due to tricarboxylic acid cycle?

A)

One

B)

Two

C)

Three

D)

Four

View Answer
149) Which of the following reaction does not take place in the cell organelle, that is referred to as power house of the cell?

A)

Glycine decarboxylation

B)

Glyceraldehyde 3-phosphate drogenation

C)

Fumaric acid hydration

D)

Cytochrome oxidation

View Answer
150) Swollen and spongy petioles are characteristic of

A)

Trapa

B)

Wolffia

C)

Ceratophyllum

D)

Limnophila

View Answer
151) A plant with low \[C{{O}_{2}}\] compensation point is

A)

Atriplex patula

B)

Leucopoa kingu

C)

Gossypium hirsutum

D)

Tidestromia oblongifolia

View Answer
152) During which phase of their replication, the bacteriphages release lysozyme?

A)

Adsorption

B)

Maturation

C)

Eclipse

D)

Penetration

View Answer
153) In Pheretima, the number of ring vessels per segment in 12th and 13th segment, is

A)

10 pairs

B)

10 pairs

C)

12 pairs

D)

24 pairs

View Answer
154) A couple whose sons are colour blind with AB blood group, identify the parent from the following.

A)

Mother colourblind with blood group-A and father normal with blood group-B

B)

Mother normal with blood group-A and father colourblind with blood group-B

C)

Mother colourblind with blood group-B and father normal with blood group-B

D)

Mother normal with blood group-A and father colourblind with blood group-B

View Answer
155) An example of vestigial organ is

A)

wing of ApteryJc

B)

tail of Macropus

C)

eyelid of man

D)

flipper of whale

View Answer
156) In a cross between individuals with genotypes TrRr, if the resulting number of off springs is 16, identify the number of genotypes with TtRr and TtRR amongst them.

A)

1 and 2

B)

2 and 3

C)

3 and 1

D)

4 and 2

View Answer
157) During oxygen transport, the oxyhaemoglobin at the tissue level liberates oxygen to the cells due to

A)

\[{{O}_{2}}\] concentration is high and \[C{{O}_{2}}\] is low

B)

\[{{O}_{2}}\] concentration is low and \[C{{O}_{2}}\] is high

C)

\[{{O}_{2}}\] tension is low and \[C{{O}_{2}}\] tension is high

D)

\[{{O}_{2}}\] tension is high and \[C{{O}_{2}}\] tension is low

View Answer
158) The gestation period of cow is

A)

30 days

B)

270 days

C)

280 days

D)

300 days

View Answer
159) In protein synthesis, the initiator codon is

A)

AAA

B)

AGC

C)

AAT

D)

AUG

View Answer
160) Adaptive radiation is an example of

A)

directional selection

B)

diversifying selection

C)

stabilising selection

D)

sympatric speciation

View Answer
161) What percentage of homozygous \[R{{h}^{-}}\] will be born amongst 4 children couple where the husband is heterozygous for \[R{{h}^{+}}\]and wife is homozygous for \[R{{h}^{-}}\] gene?

A)

25%

B)

50%

C)

75%

D)

100%

View Answer
162) One of the human diseases due to magnification of heavy metal is

A)

Minimata

B)

asthma

C)

tuberculosis

D)

elephantiasis

View Answer
163) The ears of a mammal living in a cold area were smaller than the one living in a warm area. This is an example of

A)

Bergmans rule

B)

Jordans rule

C)

Aliens rule

D)

Glogers rule

View Answer
164) The growth rate of population stabilises after

A)

logarithmic phase

B)

stationary phase

C)

carrying capacity

D)

negative acceleration phase

View Answer
165) Identify from the following which can give a complementary and palindromic sequence.

A)

5ATATCC3

B)

5 CCGAAT 3

C)

5GAATTCS

D)

3AGGTTCS

View Answer
166) According to IUGN red list, what is the status of red panda (Athurus fulgens)?

A)

Vulnerable species

B)

Critically endangered species

C)

Extinct species

D)

Endangered species

View Answer
167) In which one pair, both the plants can be vegetatively propagated by leaf pieces?

A)

Bryophyllum and Kalanchoe

B)

Chrysanthemum and Agave

C)

Agave and Kalanchoe

D)

Asparagus and Bryophyllum

View Answer
168) G-6-P dehydrogenase deficiency is associated with haemolysis of

A)

lymphocytes

B)

RBCs

C)

platelets

D)

leucocytes

View Answer
169) The name of Norman Borlaug is associated with

A)

green revolution

B)

yellow revolution

C)

white revolution

D)

blue revolution

View Answer
170) Which one of the following makes use of RNA as a template to synthesise DNA?

A)

Reverse transcriptase

B)

DNA dependent RNA polymerase

C)

DNA polymerase

D)

RNA polymerase

View Answer
171) One of the most important function of botanical gardens is that

A)

one can observe tropical plant there

B)

they allow ex situ conservation of germplasm

C)

they provide the natural habitat for wildlife

D)

they provide a beautiful area for recreation

View Answer
172) Protein synthesis in an animal cell occurs

A)

only on the ribosomes present in cytosol

B)

on ribosomes present in cytoplasm as well as in mitochondria

C)

only on ribosomes attached to the nuclear envelope and endoplasmic reticulum

D)

on ribosomes present in the nucleolus as well as in cytoplasm

View Answer
173) Which of the following is not true for a species?

A)

Members of a species can interbreed

B)

Variations occurs among members of a species

C)

Each species is reproductively isolated from every other species

D)

Gene flow does not occur between the populations of a species

View Answer
174) Potometer works on the principle of

A)

amount of water absorbed equals the amount transpired

B)

osmotic pressure

C)

root pressure

D)

potential difference between the tip of the tube and that of the plant

View Answer
175) Which of the following is the relatively most accurate method for dating of fossils?

A)

Potassium-argon method

B)

Uranium-lead method

C)

Electron spin resonance method

D)

Radio-carbon method

View Answer
176) During   transcription   holoenzyme   RNA polymerase binds to a DNA sequence and the DNA assumes a saddle-like structure at that point. What is that sequence called?

A)

CAAT box

B)

GGTT box

C)

AAAT box

D)

TATA box

View Answer
177) Telomerase is an enzyme, which is a

A)

repetitive DNA

B)

RNA

C)

simple protein

D)

ribonucleoprotein

View Answer
178) Centromere is required for

A)

transcription

B)

crossing over

C)

cytoplasmic cleavage

D)

movement of chromosomes towards poles

View Answer
179) In Ornithine cycle, which of the following wastes are removed from the blood?

A)

Urea and urine

B)

Ammonia and urea

C)

Carbon dioxide and ammonia

D)

Carbon dioxide and urea

View Answer
180) Damage to thymus in a child may lead to

A)

a reduction in haemoglobin content of blood

B)

a reduction in stem cell production

C)

loss of antibody mediated immunity

D)

loss of cell mediated immunity

View Answer
181) Biodiversity Act of India was passed by the Parliament in the year

A)

1996

B)

1992

C)

2002

D)

2000

View Answer
182) During which stage in the complete oxidation of glucose, are the greatest number of ATP molecules formed from ADP?

A)

Conversion of pyruvic acid to acetyl Co-A

B)

Electron transport chain

C)

Glycolysis

D)

Krebs cycle

View Answer
183) A woman with normal vision, but whose father was colourblind, marries a colourblind man. Suppose that the fourth child of this couple was a boy. This boy

A)

must have normal colour vision

B)

will be partially colourblind since he is heterozygous for the colourblind mutant allele

C)

must be colourblind

D)

may be colourblind or may be of normal vision

View Answer
184) Which of the following is geneally used for induced mutagenesis in crop plants?

A)

Alpha particles

B)

X-rays

C)

UV(260nm)

D)

Gamma rays (from cobalt 60)

View Answer
185) Which one of the following depresses brain activity and produces feeling of calmness, relaxation and drowsiness?

A)

Valium

B)

Morphine

C)

Hashish

D)

Amphetamines

View Answer
186) Golden rice is transgenic crop of the future with the following improved trait.

A)

High lysine (essential amino acid) content

B)

Insect resistance

C)

High protein content

D)

High vitamin-Acontent

View Answer
187) Photosynthetic Active Radiation (PAR) has the following range of wavelengths.

A)

400 to 700 nm

B)

450 to 950 nm

C)

340 to 450 nm

D)

500 to 600 nm

View Answer
188) The catalytic efficiency of two different enzymes can be compared by

A)

the \[{{K}_{m}}\] value

B)

the pH optimum value

C)

formation of the product

D)

molecular size of the enzyme

View Answer
189) Which one of the following pairs is mismatched?

A)

Savanna                   - Acacia trees

B)

Prairie                      - Epiphytes

C)

Tundra                     - Permafrost

D)

Coniferous forest - Evergreen tress

View Answer
190) Using imprints from a plate with complete medium and carrying bacterial colonies, you can selected streptomycin resistant mutants prove that such mutations do not originate as adaptation. These imprints need to be used

A)

only on plates with streptomycin

B)

on plates with minimal medium

C)

only on plates without streptomycin

D)

on plates with and without streptomycin

View Answer
191) A patient is generally advised to specially consume more meat, lentils, milk and eggs in diet only, when he suffers from

A)

kwashiorkor

B)

rickets

C)

anaemia

D)

scurvy

View Answer
192) Epithelial cells of the intestine involved in food absorption have on their surface

A)

pinocytic vesicles

B)

phagocytic vesicles

C)

zymogen granules

D)

microvilli

View Answer
193) Animals have the innate ability to escape from predation. Examples for the same are given below. Select the incorrect example.

A)

Enlargement of body size by swallowing air in puffer fish

B)

Melanism in moths

C)

Poison fangs in snakes

D)

Colour change in Chamaeleon

View Answer
194) For retting of jute, the fermenting microbe used is

A)

Helicobactor pylori

B)

methophilic bacteria

C)

Streptococcus lactis

D)

butyric acid bacteria

View Answer
195) From the following statements, select the wrong one

A)

Millipedes have two pairs of appendage in each segment of the body

B)

Prawn has two pairs of antennae

C)

Animals belonging to phylum-Porifera are exclusively marine

D)

Nematocysts are characteristic of phylum-Cnidaria

View Answer
196) Nucleotide are building blocks of nucleic acid, nucleotide is a composite molecule formed

A)

(base-sugar-phosphate) n

B)

base-sugar-OH

C)

base-sugar-phosphate

D)

sugar-phosphate

View Answer
197) Which one of the following experiments suggest that simplest living organisms could not have originated spontaneously from non- living matter?

A)

Microbes did not appear in stored meat

B)

Larvae could appear in decaying organic matter

C)

Microbes appeared from unsterilized organic matter

D)

Meat was not spoiled, when heated and kept sealed in a vessel

View Answer
198) There exists a close association between the alga and the fungus within a lichen. The fungus

A)

fixes the atmospheric nitrogen for the alga

B)

provides protection, anchorage and absorption for the alga

C)

provides food for the alga

D)

releases oxygen for the alga

View Answer
199) A student wishes to study the cells structure under a light microscope having 10X eyepiece and 45X objective. He should illuminate the object by which one of the following colors of light so as to get the best possible resolution?

A)

Yellow

B)

Green

C)

Blue

D)

Red

View Answer
200) At what stage of the cell cycle are histone proteins synthesised in a eukaryotic cell?

A)

During entire prophase

B)

During telophase

C)

During S-phase

D)

During \[{{\text{G}}_{\text{2}}}\text{-stage}\]of prophase

View Answer

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done Uttarakhand PMT Solved Paper-2010 Total Questions - 200

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Uttarakhand PMT Solved Paper-2010 Total Questions - 200