Solved papers for EAMCET Medical EAMCET Medical Solved Paper-1998

EAMCET Medical Solved Paper-1998 Total Questions - 200

1) Two cars going round curve with speeds one at 90 km/h and other at 15 km/h. Each car experiences same acceleration - The radii of curves are in the ratio of:

A)

4 : 1

B)

2 : 1

C)

16 : 1

D)

36 : 1

View Answer
2) A coin is placed on a rotating turn table slips if it is placed at a minimum distance of 9cm from the centre. If the angular velocity of the turn table is tripled, it wilt just slip if the distance from the centre is:

A)

9 cm

B)

3 cm

C)

1.5 cm

D)

1 cm

View Answer
3) A wheel of mass 10 kg has a moment of inertia of \[160\text{ }kg-{{m}^{2}}\]about its own axis. The radius of gyration is:

A)

10 m

B)

4 m

C)

5 m

D)

6 m

View Answer
4) The quantities that are conserved in elastic collision are:

A)

momentum, kinetic energy and temperature

B)

momentum and kinetic energy

C)

momentum only

D)

kinetic energy only

View Answer
5) The ratio of the escape velocity to the orbital velocity is:

A)

\[\sqrt{2}\]

B)

1/\[\sqrt{2}\]

C)

2

D)

½

View Answer
6) To show that a simple pendulum executes simple harmonic motion is necessary to assume that:

A)

the length of pendulum is small

B)

the mass of pendulum is small

C)

the amplitude of oscillations is small

D)

the acceleration due to gravity is small

View Answer
7) An iron wire of length 4 m and diameter 2 mm is loaded with a mass of 8 kg. If the Youngs modulus Y for iron is \[2~\times {{10}^{11}}N/{{m}^{2}},\] then the increase in the length of the wire is:

A)

0.2 mm

B)

0.5 mm

C)

2 mm

D)

1 mm

View Answer
8) Two soap bubbles are blown, In the first soap bubble excess pressure is 4 times of seconds soap bubble. The ratio of radii of first to second soap bubble is:

A)

1 : 4

B)

1 : 2

C)

2 : 1

D)

4 : 1

View Answer
9) Density of a substance at \[0{}^\circ C\] is 10 g/cc and at \[100{}^\circ C\] its density is 9.7 g/cc. The coefficient of linear expansion of the substance is:

A)

\[{{10}^{-4}}\]

B)

\[3\times {{10}^{-4}}\]

C)

\[19.7\times {{10}^{-3}}\]

D)

\[{{10}^{-3}}\]

View Answer
10) A cylinder contains 10 kg of gas at pressure \[{{10}^{7}}N/{{m}^{2}}.\] The quantity of gas taken out of cylinder if final pressure is \[2.5\times {{10}^{7}}N/{{m}^{2}}\]is: (assume the temperature of gas is constant)

A)

zero

B)

7.5 kg

C)

2.5 kg

D)

6 kg

View Answer
11) A monoatomic gas is suddenly compressed to \[\frac{1}{8}\] of its volume adiabatically. The pressure of the gas now to that of its original pressure is:

A)

8 times

B)

16 times

C)

32 times

D)

128 times

View Answer
12) The dimensions of impulse is:

A)

\[[ML{{T}^{-2}}]\]

B)

\[[{{M}^{2}}L{{T}^{-1}}]\]

C)

\[[ML{{T}^{-1}}]\]

D)

\[[M{{L}^{2}}{{T}^{-1}}]\]

View Answer
13) The vector \[P\to =a\widehat{i}+a\widehat{j}+3\widehat{k}\] and \[Q\to =a\widehat{i}+2\widehat{j}-\widehat{k}\]are perpendicular to each other, the positive value of a is:

A)

3

B)

2

C)

1

D)

zero

View Answer
14) A car travelling on a straight track moves with uniform velocity of v1 for same time and with uniform velocity v2 to next equal time. The average velocity is given by:

A)

\[\sqrt{{{v}_{1}}{{v}_{2}}}\]

B)

\[\frac{{{v}_{1}}+{{v}_{2}}}{2}\]

C)

\[{{\left( \frac{1}{{{v}_{1}}}+\frac{1}{{{v}_{2}}} \right)}^{-1}}\]

D)

       \[2{{\left( \frac{1}{{{v}_{1}}}+\frac{1}{{{v}_{2}}} \right)}^{-1}}\]

View Answer
15) A stone is thrown at an angle \[\theta \] to the horizontal reaches a maximum height h. The time of flight of the stone is:

A)

\[\sqrt{\frac{(2h\,\sin \,\theta }{g}}\]

B)

\[2\sqrt{\frac{(2h\,\sin \,\theta }{g}}\]

C)

\[2\sqrt{\frac{(2h)}{g}}\]

D)

\[\sqrt{\frac{(2h)}{g}}\]

View Answer
16) A spring balance is suspended from a ceiling and another spring balance is attached to the end of the first. A 5 kg mass is hung to the lower balance. If springs arc massless, then:

A)

both balances will read 5 kg wt

B)

the upper reads 5 kg wt and the lower zero

C)

both of them read 2.5 kg wt each

D)

the readings may be different but add upto 5 kg wt

View Answer
17) A gun mounted on the top of a moving truck is aimed in the backward direction at an angle of \[30{}^\circ \] to the vertical. If the muzzle velocity of the gun is 4 m/s. the value of the speed of the truck that will make the bullet come out vertically is:

A)

1 m/s

B)

\[\frac{\sqrt{3}}{2}m/s\]

C)

0.5 m/s

D)

2 m/s

View Answer
18) A body is projected along a rough horizontal surface with a velocity 6 m/s. If the body comes to rest after travelling a distance 9 m, the coefficient of sliding friction is\[(g=10m{{s}^{-2}})\]:

A)

0.5

B)

0.6

C)

0.4

D)

0.2

View Answer
19) A lift is moving with a retardation of \[5\text{ }m/{{s}^{2}}.\] The percentage change in the weight of person in the lift is \[(g=10m{{s}^{-2}}):\]

A)

100

B)

25

C)

50

D)

75

View Answer
20) A mass m falls freely from rest. The linear momentum after it has fallen through a height h is: (g = acceleration due to gravity)

A)

\[\sqrt{mgh}\]

B)

\[m\sqrt{2gh}\]

C)

\[m\sqrt{gh}\]

D)

zero

View Answer
21) The power of a pump which can pump 200 kg of water to a height of 200 m in 10 s is: \[(g=10\text{ }m/{{s}^{2}})\]

A)

40 kW

B)

80 kW

C)

4000 kW

D)

960 kW

View Answer
22) Two gases A and B having same pressure P, volume F and temperature Fare mixed, if the mixture has volume and temperature as V and T respectively, (he pressure of mixture is:

A)

2 P

B)

P

C)

\[\frac{P}{2}\]

D)

4 P

View Answer
23) First law of thermodynamics states that:

A)

system can do work

B)

system has temperature

C)

system has pressure

D)

heat is a form of energy

View Answer
24) The material that has the largest specific heat is:

A)

mercury

B)

water

C)

iron

D)

diamond

View Answer
25) In order that heat is conducted from one part of a solid to another part, what is required is

A)

Uniform density

B)

Uniform temperature

C)

Temperature gradient

D)

Density gradient

View Answer
26) In a transverse progressive waves of amplitude A, the maximum particle velocity is four times wave velocity. Then the wave-length of wave is:

A)

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

B)

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

C)

\[\pi A\]

D)

\[2\pi A\]

View Answer
27) A tuning fork produces waves in a medium. If the temperature of the medium change, one of the following will change:

A)

amplitude

B)

frequency

C)

wavelength

D)

time period

View Answer
28) An open pipe of length / vibrates in fundamental mode. The pressure variation is maximum at:

A)

\[\frac{l}{4}\] from ends

B)

the middle of pipe

C)

the ends of pipe

D)

at \[\frac{l}{8}\] from ends of pipe

View Answer
29) A piano convex lens is made of refractive index 1.6. The radius of curvature of the curved surface is 60 cm. The focal length of the lens is:

A)

50 cm

B)

100 cm

C)

200 cm

D)

400 cm

View Answer
30) A simple microscope has a focal length of 5 cm. The magnification at the least distance of distinct vision is:

A)

2

B)

5

C)

4

D)

6

View Answer
31) In Ramsdens eye piece the field lens and eye lens have focal lengths f1 and f2 respectively and separated by a distance d, then:

A)

\[{{f}_{1}}={{f}_{2}}\frac{2}{3},d=\frac{2}{3}{{f}_{1}}\]

B)

\[{{f}_{1}}={{f}_{2}},d={{f}_{1}}+{{f}_{2}}\]

C)

\[{{f}_{1}}={{f}_{2}},d=\frac{2}{3}f\]

D)

\[{{f}_{1}}=3{{f}_{2}},d={{f}_{1}}+{{f}_{2}}\]

View Answer
32) Consider the following statements:

A: Line spectrum is characteristic of atomic spectra.

B: B and spectrum is characteristic of molecular spectra.

A)

both A and B are correct

B)

A is correct B is wrong

C)

4 is wrong B is correct

D)

both A and B are wrong

View Answer
33) A bar magnet is held perpendicular to a uniform field. If the couple acting on the magnet is to be halved by rotating it from above position, the angle by which it is to be rotated is:

A)

\[30{}^\circ \]

B)

\[60{}^\circ \]

C)

\[40{}^\circ \]

D)

\[90{}^\circ \]

View Answer
34) Which of the following materials is repelled by an external magnetic field?

A)

Iron

B)

Cobalt

C)

Steel

D)

Copper

View Answer
35) A dust particle of mass \[{{10}^{-13}}g\]is stationary between plates of a horizontal parallel plate capacitor of 0.016 m separation which is connected to a voltage of 100 V. How many fundamental charges \[(e=1.6\times {{10}^{-19}}C)\] the dust particle carries : \[(g=10\text{ }m/{{s}^{2}})\]

A)

1

B)

10

C)

100

D)

1000

View Answer
36) Three capacitors 3\[\mu \]F, 10 \[\mu \]F, and 15 \[\mu \]f are connected in series to a voltage source of 100 V. The charge on 15\[\mu \]F is:

A)

22\[\mu \]C

B)

100\[\mu \]C

C)

2800\[\mu \]C

D)

200\[\mu \]C

View Answer
37) The electrical resistance of a mercury column in a cylindrical container is R. When the same mercury is poured into another cylindrical container twice the radius of cross-section, the resistance of mercury column now is:

A)

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

B)

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

C)

\[\frac{R}{8}\]

D)

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

View Answer
38) A 3 \[\Omega \] resistor and 6\[\Omega \] resistor are connected in parallel and the combination is connected in series to a battery of 5 V and a 3\[\Omega \] resistor. What is the potential difference across the 6\[\Omega \] resistor?

A)

2 V

B)

4 V

C)

3 V

D)

1 V

View Answer
39) A charge of \[{{10}^{-6}}C\]is describing a circular path of radius 1 cm making 5 revolution per second. The magnetic induction field at the centre of the circle is:

A)

\[\pi \times {{10}^{-10}}T\]

B)

\[\pi \times {{10}^{-9}}T\]

C)

\[\frac{\pi }{2}\times {{10}^{-10}}T\]

D)

\[\frac{\pi }{2}\times {{10}^{-9}}T\]

View Answer
40) Two long straight wires of length l lie parallel to one another and carry currents opposite to one another of magnitudes i1 and i2 respectively. The force experienced by each of the straight wires is: (r is their distance of separation)

A)

repulsive and equal to \[\frac{{{\mu }_{0}}}{2\pi }\,\frac{{{l}^{2}}{{i}_{1}}{{i}_{2}}}{r}\]

B)

repulsive and equal to \[\frac{{{\mu }_{0}}}{2\pi }\,\frac{l{{i}_{1}}{{i}_{2}}}{r}\]

C)

attractive and equal to \[\frac{{{\mu }_{0}}{{l}^{2}}{{i}_{1}}{{i}_{2}}}{2\pi {{r}^{2}}}\]

D)

attractive and equal to \[\frac{{{\mu }_{0}}l{{i}_{1}}{{i}_{2}}}{2\pi r}\]

View Answer
41) Consider the two statements A and B:

A: The neutral temperature does not depend on temperature of cold junction.

B: The inversion temperature does not depend on temperature of cold junction.

A)

both A and B are correct

B)

A is correct but B is wrong

C)

A is wrong but B is correct

D)

both A and B are wrong

View Answer
42) A galvanometer has coil of resistance 50 \[\Omega \] and shows full defection at 100\[\mu \]A. The resistance to be added for the galvanometer to work as an ammeter of range 10 in A is:

A)

0.5 \[\Omega \] in series

B)

0.5 \[\Omega \] in parallel

C)

50 \[\Omega \] in series

D)

50 \[\Omega \] in parallel

View Answer
43) The photoelectric threshold wavelength for potassium (work function being 2 eV) is:

A)

310 nm

B)

620 nm

C)

6200 nm

D)

3100 nm

View Answer
44) Kinetic energy of the electron in the first Bohr orbit of the hydrogen atom is:

A)

-13.6 eV

B)

13.6 eV

C)

-27.2 eV

D)

-6.8 eV

View Answer
45) Plutonium decays with a half-life of 24000 years. If plutonium is stored for 72000 years, the fraction of it that remains is:

A)

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

B)

\[\frac{1}{3}\]

C)

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

D)

\[\frac{1}{8}\]

View Answer
46) Nuclear force is of:

A)

short range and charge dependent

B)

short range and charge independent

C)

long range and charge independent

D)

long rage like electrostatic type

View Answer
47) A chain reaction in fission of uranium is possible because:

A)

large amount of energy is released

B)

two intermediate sized nuclear fragments are formed

C)

more than one neutron is given out in each fission

D)

fragments in fission are radioactive

View Answer
48) East west effect in cosmic rays is due to:

A)

cosmic rays are neutral particles

B)

cosmic rays have equal positive and negative particles

C)

cosmic rays are predominantly positively charged particles

D)

cosmic rays are predominantly negatively charged particles

View Answer
49) In case of a semiconductor which one of the following statements is wrong?

A)

Resistivity is in between that of a conductor and insulator

B)

Temperature coefficient of resistance is negative

C)

Opting increases conductivity

D)

At absolute zero temperature it behaves like a conductor

View Answer
50) The potential in the depletion layer is due to:

A)

electrons

B)

holes

C)

ions

D)

forbidden band

View Answer
51) The state of hybridization of B in \[\text{BC}{{\text{l}}_{\text{3}}}\]is :

A)

\[s{{p}^{3}}\]

B)

\[s{{p}^{2}}\]

C)

\[sp\]

D)

\[s{{p}^{3}}{{d}^{2}}\]

View Answer
52) The first emission line in the atomic spectrum of hydrogen in the Balmer series appears at:

A)

\[\frac{5R}{36}c{{m}^{-1}}\]

B)

\[\frac{3R}{4}c{{m}^{-1}}\]

C)

\[\frac{7R}{144}c{{m}^{-1}}\]

D)

\[\frac{9R}{400}c{{m}^{-1}}\]

View Answer
53) The four quantum numbers of the valence electron of potassium are :

A)

\[4,0,1,\frac{1}{2}\]

B)

\[4,1,0,\frac{1}{2}\]

C)

\[4,0,0,\frac{1}{2}\]

D)

\[4,1,1,\frac{1}{2}\]

View Answer
54) Which of the following has magic number of protons and neutrons?

A)

\[{{\,}_{8}}{{O}^{17}}\]

B)

\[{{\,}_{13}}A{{l}^{27}}\]

C)

\[{{\,}_{9}}{{F}^{17}}\]

D)

\[{{\,}_{20}}C{{a}^{40}}\]

View Answer
55) The activity of ratio altitude \[({{X}^{100}})\] is 6.023 curie. If its disintegration constant is \[3.7\times {{10}^{4}}{{\sec }^{-1}},\] the mass of X is :

A)

\[{{10}^{-23}}g\]

B)

\[{{10}^{-15}}g\]

C)

\[{{10}^{-16}}g\]

D)

\[{{10}^{-14}}g\]

View Answer
56) According to VSEPR theory the shape of the water molecule is:

A)

linear

B)

planar triangle

C)

F-shaped

D)

octahedral

View Answer
57) The radii of \[\text{F,}{{\text{F}}^{-}}\text{O}\]and\[{{\text{O}}^{2-}}\] are in the order

A)

\[{{O}^{2-}}>{{F}^{-}}>O>F\]

B)

\[{{O}^{2-}}>{{F}^{-}}>F>O\]

C)

\[{{F}^{2-}}>{{O}^{2-}}>F>O\]

D)

\[{{O}^{2-}}>O>{{F}^{-}}>F\]

View Answer
58) Which of the following has the highest first ionization potential?

A)

Boron

B)

Nitrogen

C)

Oxygen

D)

Carbon

View Answer
59) The standard reduction potentials at 298 K for the following half cell reactions are given below: \[Z{{n}^{2+}}(aq)+2{{e}^{-}}\rightleftharpoons Zn(s)-0.762\] \[C{{r}^{3+}}(aq)+3{{e}^{-}}\rightleftharpoons Cr(s)-0.74\] \[2{{H}^{+}}(aq)+2{{e}^{-}}\rightleftharpoons {{H}_{2}}(g)\,0.00\] \[F{{e}^{3+}}(aq)+{{e}^{-}}\rightleftharpoons F{{e}^{2+}}(aq)+0.77\] Which one of the following is the strongest reducing agent?

A)

\[Zn(s)\]

B)

\[Cr(s)\]

C)

\[{{H}_{2}}(g)\]

D)

\[F{{e}^{2+}}(aq)\]

View Answer
60) According to Fajans rule covalent bond is favoured by:

A)

small cation and large anion

B)

small cation and small anion

C)

large cation and large anion

D)

large cation and small anion

View Answer
61) The volume in litres of \[\text{C}{{\text{O}}_{\text{2}}}\]liberated at STP when 10 g of 90% pure lime stone is heated completely is:

A)

2.016

B)

20.16

C)

2.24

D)

22.4

View Answer
62) A buffer solution is prepared by mixing 10 mL of 1.0 M acetic acid and 20 mL of 0.5 M sodium acetate and then diluted to 100 mL with distilled water. If the \[p{{K}_{a}}\]of acetic acid is 4.76, what is the pH of the buffer solution prepared?

A)

3.84

B)

4.76

C)

4.34

D)

5.21

View Answer
63) The dissociation constant of a weak monobasic acid \[{{K}_{a}}\]is \[1\times {{10}^{-5}}.\] The pH of \[0.1\,\text{M}\]of that acid would be:

A)

3

B)

between 2-3

C)

1

D)

5

View Answer
64) \[\text{KMn}{{\text{O}}_{\text{4}}}\]oxidises oxalic acid in acid medium. The number of \[\text{C}{{\text{O}}_{2}}\]molecules produced as per the balanced equation is :

A)

10

B)

8

C)

6

D)

3

View Answer
65) The oxidation number of cobalt in \[{{K}_{3}}[Co{{(N{{O}_{2}})}_{6}}]\]is:

A)

+6

B)

3

C)

+3

D)

-6

View Answer
66) The volume of 1.8 g of carbon monoxide at \[\text{27}{{\,}^{\text{o}}}\text{C}\,\]and 0.821 atm pressure is \[\text{(R = 0}\text{.0821}\,L\,atm\,{{K}^{-1}}\,\text{mo}{{\text{l}}^{-1}}\text{)}\]

A)

1.5L

B)

0.3L

C)

3L

D)

30L

View Answer
67) A gaseous mixture of three gases A, B and C has a pressure of 10 atms. The total number of moles of all the gases is 10. If the partial pressures of A and B are 3.0 and 1.0 atm respectively and if C has mol. wt. of 2.0, what is the weight of C in grams present in the mixture?

A)

6

B)

3

C)

12

D)

8

View Answer
68) The weight of \[\text{AgN}{{\text{O}}_{\text{3}}}\] (mol. wt. 170) present in 100 mL of its 0.25 M solution is :

A)

4.25 g

B)

42.5g

C)

17g

D)

1.7g

View Answer
69) For a cell, the cell reaction is : \[Mg(s)+C{{u}^{2+}}(aq)\to Cu(s)+M{{g}^{2+}}(aq)\] If the standard reduction potentials of Mg and Cu are -2.37 and +0.34 V respectively, the emf of the cell is

A)

2.03V

B)

-2.03V

C)

2.7 IV

D)

-2.71 V

View Answer
70) For the reaction\[C(s)+C{{O}_{2}}(g)\rightleftharpoons 2CO(g),\]the partial pressures of \[\text{C}{{\text{O}}_{\text{2}}}\]and CO are 2.0 and 4.0 atm respectively at equilibrium. What is the value of K for the reaction?

A)

0.5

B)

4.0

C)

8.0

D)

32

View Answer
71) After how many seconds will the concentration of the reactant in a first order reaction be halved if the rate constant is\[\text{1}\text{.155}\times {{10}^{-3}}{{\sec }^{-1}}\]?

A)

600

B)

100

C)

60

D)

10

View Answer
72) If \[{{K}_{1}}\]and \[{{K}_{2}}\] are the equilibrium constants of the equilibria A and B respectively, what is the relationship between the two constants? (i)\[S{{O}_{2}}(g)+\frac{1}{2}{{O}_{2}}(g)\rightleftharpoons S{{O}_{3}}(g);{{K}_{1}}\] (ii) \[2S{{O}_{3}}(g)\rightleftharpoons 2S{{O}_{2}}(g)+{{O}_{2}}(g);{{K}_{2}}\]

A)

\[{{K}_{1}}={{K}_{2}}\]

B)

\[{{K}_{1}}=\frac{1}{{{K}_{2}}}\]

C)

\[{{K}_{2}}=K_{1}^{2}\]

D)

\[K_{1}^{2}=\frac{1}{{{K}_{2}}}\]

View Answer
73) The purest form of coal is :

A)

peat

B)

anthracite

C)

1 ignite

D)

bituminous coal

View Answer
74) \[\text{PC}{{\text{l}}_{\text{3}}}\]on hydrolysis gives :

A)

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

B)

\[HCl+{{H}_{3}}P{{O}_{4}}\]

C)

\[HCl+{{H}_{3}}P{{O}_{3}}\]

D)

\[HCl+POC{{l}_{3}}\]

View Answer
75) Heating an ore in the absence of air below its melting point is called:

A)

calcination

B)

smelting

C)

roasting

D)

leaching

View Answer
76) In the electrolytic extraction of aluminium fused cryolite is added. Its role is:

A)

to protect the anode

B)

to increase Al production

C)

it acts as a reducing agent

D)

to make a conducting solution of bauxite

View Answer
77) Electron is an alloy of:

A)

Mg and Zn

B)

Fe and Mg

C)

Ni and Zn

D)

Al and Zn

View Answer
78) The element which can displace three other halogens from their compounds is :

A)

\[Cl\]

B)

\[Br\]

C)

\[I\]

D)

F

View Answer
79) Gas A is bubbled through slaked lime when a white precipitate is formed. On prolonged   bubbling   the   precipitate dissolved. On heating the resultant solution, the white precipitate reappeared with evolution of gas B The gases A and B respectively are:

A)

\[C{{O}_{2}}\]and \[CO\]

B)

\[CO\] and \[C{{O}_{2}}\]

C)

\[C{{O}_{2}}\]and\[C{{O}_{2}}\]

D)

\[CO\] and \[CO\]

View Answer
80) Nitrolim is a mixture of:

A)

\[Ca{{(CN)}_{2}}\]and graphite

B)

\[Ca\,{{C}_{2}}\]and graphite

C)

\[Ca\,C{{N}_{2}}\] and graphite

D)

\[Ca\,C{{N}_{2}}\]and\[{{N}_{2}}\]

View Answer
81) Which of the following is used as a rocket fuel?

A)

Nitrolim \[+{{O}_{3}}\]

B)

Water gas \[+{{O}_{3}}\]

C)

Cyanogen\[+\,{{O}_{2}}\]

D)

Cyanogen\[+{{O}_{3}}\]

View Answer
82) The homologue of ethyne is :

A)

\[{{C}_{2}}{{H}_{4}}\]

B)

\[{{C}_{3}}{{H}_{6}}\]

C)

\[{{C}_{3}}{{H}_{8}}\]

D)

\[{{C}_{3}}{{H}_{4}}\]

View Answer
83) In Wurtz reaction the reagent used is:

A)

\[Na\]

B)

\[Na/liq.N{{H}_{3}}\]

C)

\[Na/dry\]ether

D)

Na/dry alcohol

View Answer
84) Benzene   is   obtained   by   fractional distillation of:

A)

light oil

B)

middle oil

C)

  anthracene oil

D)

heavy oil

View Answer
85) Hydrolysis of trichloro methane with aqueous KOH gives:

A)

methanol

B)

chloral

C)

acetylene

D)

potassium formate

View Answer
86) The product obtained when acetaldehyde is treated with strong NaOH is:

A)

\[C{{H}_{3}}C{{H}_{2}}OH\]

B)

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

C)

\[C{{H}_{3}}CH(OH)C{{H}_{2}}CHO\]

D)

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

View Answer
87) Which of the following does not participate in the carbylamine reaction?

A)

Aniline

B)

Chloroform

C)

Ethanol

D)

KOH

View Answer
88) When \[{{\text{H}}_{\text{2}}}{{\text{O}}_{\text{2}}}\] reacts with chlorine the product obtained is:

A)

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

B)

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

C)

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

D)

\[HOCl\]

View Answer
89) Reduction of nitrobenzene in the presence of \[\text{Zn/N}{{\text{H}}_{\text{4}}}\text{Cl}\]gives:

A)

azo benzene

B)

aniline

C)

N-phenyl hydroxyl amine

D)

hydrazobenzene

View Answer
90) Hydrolysis of acetonitrile in acid medium gives:

A)

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

B)

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

C)

\[C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}\]

D)

\[C{{H}_{3}}C{{H}_{2}}OH\]

View Answer
91) \[{{\text{C}}_{\text{2}}}{{\text{H}}_{\text{5}}}\text{CHO}\] and \[C{{H}_{3}}COC{{H}_{3}}\]can be distinguished from one another by heating with:

A)

phenyl hydrazine

B)

2,4-dinitro phenyl hydrazine

C)

Fehlings solution

D)

sodium bisulphite

View Answer
92) The gaseous substance which decolourises bromine but does not give a precipitate with ammoniacal silver nitrate is:

A)

\[{{C}_{2}}{{H}_{6}}\]

B)

\[{{C}_{2}}{{H}_{4}}\]

C)

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

D)

\[C{{H}_{4}}\]

View Answer
93) The hybridization involved in the six carbon atoms of benzene is :

A)

three \[s{{p}^{3}}\]and three \[s{{p}^{2}}\]

B)

three \[s{{p}^{3}}\]and three sp

C)

all six sp

D)

all six \[s{{p}^{2}}\]

View Answer
94) Which one of the following hydrides is more acidic?

A)

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

B)

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

C)

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

D)

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

View Answer
95) The IUPAC name of the compound having the formula \[{{(C{{H}_{3}})}_{3}}-C-CH=C{{H}_{2}}\] is:

A)

3, 3, 3-trimethyl 1-propene

B)

3, 3-dimethyl 1-butene

C)

1, 1, 1 -trimethyl 3-propene

D)

1, 1 -dimethyl 3-butane

View Answer
96) What is the product obtained when chlorine reacts with ethyl alcohol in the presence of NaOH?

A)

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

B)

\[CC{{l}_{3}}CHO\]

C)

\[C{{H}_{2}}Cl\]

D)

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

View Answer
97) Alkyl halide is not obtained from one of the following reactions. Which one is that?

A)

Diethyl ether \[\xrightarrow{\text{reduction}}X\xrightarrow{SOC{{l}_{2}}}\]

B)

Diethyl ether \[+\,\text{HI}\to \]

C)

Diethyl ether \[\text{+ PC}{{\text{l}}_{\text{5}}}\to \]

D)

Diethyl ether \[\text{+ C}{{\text{l}}_{\text{2}}}\to \]

View Answer
98) One oxide of chlorine which is a colourless oily liquid is:

A)

\[C{{l}_{2}}O\]

B)

\[C{{l}_{2}}{{O}_{6}}\]

C)

\[A{{l}^{+}}\]

D)

Ne

View Answer
99) Which of the following species has the highest ionization potential?

A)

\[L{{i}^{+}}\]

B)

\[M{{g}^{+}}\]

C)

\[A{{l}^{+}}\]

D)

Ne

View Answer
100) In which one of the following transition metal complexes does the metal exhibit in zero oxidation state?

A)

\[[Co{{(N{{H}_{3}})}_{6}}]C{{l}_{3}}\]

B)

\[[Fe{{({{H}_{2}}O)}_{6}}]S{{O}_{4}}\]

C)

\[[Ni{{(CO)}_{4}}]\]

D)

\[[Fe{{({{H}_{2}}O)}_{6}}]C{{l}_{3}}\]

View Answer
101) Name the protozoan parasite with a food vacuole.

A)

Leptomonas

B)

Plasmodium

C)

Trypanosoma

D)

Leishmania

View Answer
102) The number of post-zygotic nuclear divisions of synkaryon in exconjugant Paramecium is:

A)

one

B)

three

C)

five

D)

eight

View Answer
103) The free swimming larva of sponges is known as:

A)

veligar

B)

trochophore

C)

parenchymula

D)

bipinnaria

View Answer
104) Which one of the following is the most distinctive character of sponges?

A)

They possess coanocytes

B)

They are unicellular

C)

They all are marine

D)

They reproduce only asexually

View Answer
105) Which of the following characters is not present in all arthropods?

A)

Truecoelom

B)

Exoskeleton

C)

Haemocoel

D)

Malpighian body

View Answer
106) In tapeworm, vitelline gland produces:

A)

ova

B)

yoik cells

C)

shell

D)

mucous cells

View Answer
107) Posterior end of male Ancyclosfoma has:

A)

anus

B)

curved tail

C)

bursa

D)

caudal spine

View Answer
108) The scientific name of pinworm is:

A)

Schisiosoma haemaiobium

B)

Wucherena bancrofti

C)

Ancylosioma duudenale

D)

Enrerobius vermicularis

View Answer
109) Flaiworms are:

A)

acoelomaies

B)

pseudocoelomates

C)

heaumochmaies

D)

coelomates

View Answer
110) Name of the colorless Hydra is:

A)

Hydrafusca

B)

Hydra oligactis

C)

Hydra virdis

D)

Hydra vulgaris

View Answer
111) The number of excretory pores that open outside when the last proglottid of the tapeworm is separated.

A)

four

B)

three

C)

two

D)

one

View Answer
112) The place where adult Wuchereria bancrafti lives in:

A)

human subdermal spaces

B)

muscles of culex

C)

salivary glands ofCii!ex

D)

human lymph glands

View Answer
113) Number of moulds- a larva of Ascaris undergoes to become an adult, is:

A)

one

B)

two

C)

four

D)

eight

View Answer
114) Mouth of Hydra is opened with the chemical influence of:

A)

glutamic acid

B)

glulathione

C)

guanine

D)

sporocyst

View Answer
115) The larval form of Schistosoma that enters the snail:

A)

redia

B)

cercaira

C)

mirscidium

D)

sporocyst

View Answer
116) The following one animal phylum belongs to deuterostomia:

A)

Echinodcrmaia

B)

Mollusca

C)

Arthropoda

D)

Annelida

View Answer
117) Phlebolomus argentipus is a vector for:

A)

Trypanosoma evansi

B)

Trypamsomu gambiense

C)

Leishmania donovani

D)

Trypunosoma cruzi

View Answer
118) Taenia solium derives its energy from the break down of:

A)

fatty acids

B)

amino acids

C)

glycogen

D)

glycerol

View Answer
119) An example of errantis is:

A)

Tubifex

B)

Sabella

C)

Myzostoma

D)

Eunice

View Answer
120) Which of the following class of arthropods usually have two pairs of antennas?

A)

Myrispoda

B)

Crustacea

C)

Insects

D)

Irachnida

View Answer
121) The egg case in female cockroach is formed by the secretions of:

A)

collaterial giands

B)

conglobate glands

C)

mushroom glands

D)

prothoracle glands

View Answer
122) In molluscs , the shell is secreted by:

A)

ctenidium

B)

pericardium

C)

foot

D)

mantle

View Answer
123) Haversian canals are present in:

A)

bone marrow

B)

hyaline cartilage

C)

bone matrix

D)

calcified cartilage

View Answer
124) Which are not true cells in the blood?

A)

Platelets

B)

Monocyles

C)

Neutrophils

D)

Basophil

View Answer
125) The muscles associated with the heart of insects are:

A)

alary

B)

radial

C)

striped

D)

pericardial

View Answer
126) Which of the following is absent in the mouth parts of housefly?

A)

Maxillary patps

B)

Epipharynx

C)

Mandibles

D)

Labruin

View Answer
127) In which animal diaphragm has no role in respiration?

A)

Frog

B)

Rat

C)

Camel

D)

Rabbit

View Answer
128) Which of the following is a sensory nerve?

A)

Trigeminal nerve

B)

Vagus nerve

C)

Pathetic nerve

D)

Auditory nerve

View Answer
129) Iodine is associated with this hormone:

A)

thyroxin

B)

caicilonin

C)

oxytocin

D)

secretin

View Answer
130) The group of Anamniota includes:

A)

birds and mammals

B)

reptiles and birds

C)

reptiles and mammals

D)

fishes and amphibian

View Answer
131) Flying frogs scientific name is:

A)

Rhucophorus

B)

Bufo

C)

Phyllobates

D)

Nectwus

View Answer
132) Leydig cells secrete:

A)

testosterone

B)

progesterone

C)

oestrogen

D)

corticosterone

View Answer
133) One of the following is a poisonous snake :

A)

Enhydrina

B)

Typhlops

C)

python

D)

Eryx

View Answer
134) The type in sub order Ophidia is:

A)

Amphicoelous

B)

Acoelous

C)

Heterocoelous

D)

Precocious

View Answer
135) Metazoans without tissue grade organisation are called:

A)

Parazoa

B)

Protozoa

C)

Eumeiazoa

D)

Deuterostomia

View Answer
136) The cranial nerves which contral the movement of eye ball are:

A)

4, 6 and 7

B)

3, 4 and 6

C)

2, 3 and 5

D)

5, 8 and 9

View Answer
137) An animal which has a notochord throughout its life:

A)

fish

B)

Amphioxus

C)

bird

D)

snake

View Answer
138) Mammary glands without teats are present in:

A)

Prthotheria

B)

Metharia

C)

Eutheria

D)

Theria

View Answer
139) During blood clotting platelets release:

A)

thrombin

B)

prothrombin

C)

thrombokinase

D)

fibrinogen

View Answer
140) Which fish has an electric organ?

A)

Scolioden

B)

Torpedo

C)

Pristis

D)

Rhincodon

View Answer
141) Salivary glands are absent in:

A)

Blatta orientalis

B)

Anopheles

C)

Muse a domestica

D)

Rana hexadactyla

View Answer
142) The hormone that regulates the calcium level of blood:

A)

parathormone

B)

thyroxine

C)

insulin

D)

glucagon

View Answer
143) Who prepared germplasm theory against Lamarks principle of use and disuse:

A)

Darwin

B)

Nuttal

C)

Weismann

D)

de Vries

View Answer
144) A good example for recapitulation theory is:

A)

embryonic membranes of reptiles

B)

tadpole larva of frog

C)

placenta of mammals

D)

caning of dog

View Answer
145) In India which state occupies first position in poultry farming?

A)

Uttar Pradesh

B)

Madhya Pradesh

C)

Kerala

D)

Andhra Pradesh

View Answer
146) Increase in the concentration of pollutants in higher trophic levels is called :

A)

bio degradation

B)

bio magnification

C)

recycling

D)

eutrophication

View Answer
147) A fungal disease of the poultry is:

A)

cocidiasis

B)

monilliasis

C)

coryza

D)

mareks

View Answer
148) Which fish is known as fresh water shark?

A)

Wallago attu

B)

Tor tor

C)

Clarius halruchus

D)

Scoliodon

View Answer
149) Below is a metal which is pollutant in water, causes sterility in human being:

A)

mercury

B)

arsenic

C)

manganese

D)

chromium

View Answer
150) One of the following substances is at its lowest level in fish food:

A)

actin

B)

myosin

C)

cholesterol

D)

Tissue fluid

View Answer
151) In one of the constituent laboratory located In Lucknow, bill attached to the following organisation, extensive and exclusive research on medicinal and aromatic plants is carried out :

A)

IARI

B)

CMR

C)

NBRI

D)

CSIR

View Answer
152) Buttress roots are found in :

A)

Sorghum

B)

Banyan

C)

Terminalia

D)

Pandunus

View Answer
153) Photosynthetic function is carried out by a phylloclade with spines in :

A)

Opuntia

B)

Vanda

C)

Tueniophyllun

D)

Ruscus

View Answer
154) In Agave americana, bulbil is a modification of :

A)

terminal bud

B)

vegetative bud

C)

cauline bud

D)

floral bud

View Answer
155) Secondary rachis is modified as phyllode in :

A)

Parkinsonia

B)

Casuarina

C)

Bryophyllum

D)

Ruscus

View Answer
156) Compound head is found in :

A)

Zinnia

B)

Tagetus

C)

Echinops

D)

Tridax

View Answer
157) Tripinnate leaves are found in :

A)

Moringa

B)

Acacia

C)

Oxalis

D)

Gynandropsis

View Answer
158) The spines in the following, represent the first leaf of the axillary branch :

A)

Citrus

B)

Opuntia

C)

Ziziphus

D)

Acacia

View Answer
159) In the following plant, male flower is represented by a single stamen:

A)

Ficus

B)

Poinsettia

C)

Lenolis

D)

Leucas

View Answer
160) When micropyle, chalaza and funicle are in one vertical plane, the ovule is called :

A)

anatropous

B)

amphitropous

C)

campylotropous

D)

orthotropous

View Answer
161) The morphology of edible part of banana :

A)

endocarp

B)

endocarp and placenta

C)

mesocarp

D)

mesocarp and endocarp

View Answer
162) Spindle apparatus is formed during this stage of mitosis :

A)

prophase

B)

metaphase

C)

anaphase

D)

telophase

View Answer
163) In Cycas endosperm is :

A)

haploid

B)

diploid

C)

triploid

D)

tetraploid

View Answer
164) Development of succulency with the presence of mucilage is a xerophytic adaptation in:

A)

Aloe

B)

Agave

C)

Bryophyllum

D)

Calotropis

View Answer
165) Translator mechanism is found in :

A)

Arachis

B)

Solanum

C)

Calolropis

D)

Salvinia

View Answer
166) The scientific name of amla is :

A)

Emblicu officinalis

B)

Phyllanthus niruri

C)

Musa paradisiac

D)

Tamarindus indica

View Answer
167) Kadiri-1, Kadiri-2 are varieties of :

A)

Rice hybrids

B)

Sorghum hybrids

C)

Red gram hybrids

D)

Groundnut hybrids

View Answer
168) In DNA halix, cytosine is paired with guanine by:

A)

three hydrogen bonds

B)

phosphate bond

C)

two hydrogen bonds

D)

covalent bond

View Answer
169) How many chromosomes are there in endosperm cell of Zea mays?

A)

Forty

B)

Ten

C)

Twenty

D)

Thirty

View Answer
170) Chemical compound having the following hormone is used for artificial ripening of fruits :

A)

IAA

B)

zeatin

C)

gibbereilins

D)

ethylene

View Answer
171) Which of the following statements is correct for a plant producing spores by a diploid sporophyle and gametes by a haploid gametophyte?

A)

The sporophyte produces the zygote directly

B)

The zygote develops into a gametophyte directly

C)

The gametes are produced by mitosis

D)

The spores develop into a gametophyte directly

View Answer
172) The family Solanaceae belongs to the following series:

A)

Inferae

B)

Heteromerae

C)

Bicarpellatae

D)

CalyciHorae

View Answer
173) The following is a phylogenetic system of classification :

A)

Bentham and Hooker

B)

Hutchinson

C)

Linnaeus

D)

De Jussleu

View Answer
174) Nimbin and Nimbidin are got from :

A)

Emblica officinalis

B)

Cinchona officinalis

C)

Azadirachta indica

D)

Rauwolfia serpentina

View Answer
175) The largest phase of meiosis- I is :

A)

prophase- I

B)

metaphase- I

C)

anaphase- I

D)

leiophase- I

View Answer
176) In plant tissue culture which of the following shows up totipotency?

A)

xylem vessel

B)

meristem

C)

sieve tube

D)

collenchyma

View Answer
177) Amphivasal vascular bundles are found in the stem of :

A)

Beta

B)

Cucurbita

C)

Dracaena

D)

Boerhaavia

View Answer
178) Chlamydospores are produced in :

A)

Agaricus

B)

Rhizopus

C)

Aspergillus

D)

Penicillium

View Answer
179) Dolipore septa are found in :

A)

Rhizopus

B)

Agaricus

C)

Spirogyra

D)

Funaria

View Answer
180) Meiosis in funaria occurs in :

A)

Antherozoids

B)

Zygote

C)

spore mother cells

D)

egg

View Answer
181) Which of the following virus infecting plants has DNA in it?

A)

Tobacco mosaic virus

B)

Tomato mosaic virus

C)

Potato mosaic virus

D)

Cauliflower mosaic virus

View Answer
182) In Cycas, male gametes are produced in the pollen tube by division of this following cell :

A)

body cell

B)

stalk cell

C)

tube cell

D)

prothallial cell

View Answer
183) In Asteraceae, the presence of one of the following characters is considered as phylo genetically primitive :

A)

Herbs

B)

head inflorescence

C)

five stamens in disc floret

D)

inferior ovary

View Answer
184) Transversely arranged carpels are found in :

A)

Solanum

B)

Tridax

C)

Brassica

D)

Allium

View Answer
185) The ecosystem of a pond is referred as :

A)

lolic

B)

lentic

C)

xeric

D)

benthic

View Answer
186) In a pyramid of numbers representing an ecosystem of a large fresh water pond the number of primary consumers is :

A)

more than the producers

B)

more than the secondary consumers

C)

less than the tertiary consumers

D)

less than the secondary consumers

View Answer
187) Covered smut of Sorghum is caused by :

A)

Sphacelotheca sorghi

B)

Sphacelotheca cruenta

C)

Sphacelotheca reiliana

D)

Tolyposporium ehrenburghi

View Answer
188) For the germination of which of the following dormant seeds, would you recommend scarification method as an effective treatment ?

A)

coconut

B)

rice

C)

cotton

D)

sorghum

View Answer
189) The following is a non-succulent xerophytes having thick leathery leaves with white sticky waxy coating :

A)

Nerium

B)

Calotropis

C)

Bryophyllum

D)

Ruscus

View Answer
190) All the statements except one of the following, are true for mass selection. Which one is that exception?

A)

The plants with desirable characters are chosen on the basis of phenotype

B)

This method is more suitable in case of cross-pollinated plants

C)

This method is practiced for homozygous plants which are self-pollinated

D)

In this method plants with desirable characters, selection of the improved varieties is continued upto six generations successively

View Answer
191) Hybrid vigour is mostly due to :

A)

homozygosity of pure characters

B)

heterozygosity

C)

mixing up of cytoplasm of the male with that of female exclusively

D)

superiority of all genes

View Answer
192) Hypertrophy on tobacco stem can be caused by :

A)

Cercospora

B)

Colletotrichum

C)

Agrobacterium

D)

Pyricularia

View Answer
193) Cercospora personata belongs to :

A)

Basidiomycetes

B)

Fungi imperfecti

C)

Ascomycetes

D)

Bacteria

View Answer
194) Reaction centre of photosystem I in green plants is :

A)

\[{{P}_{660}}\]

B)

\[{{P}_{680}}\]

C)

\[{{P}_{690}}\]

D)

\[{{P}_{700}}\]

View Answer
195) The first reaction in photorespiration is :

A)

Carboxylation

B)

Decarboxylation

C)

Oxygenation

D)

Phosphorylation

View Answer
196) The term zymase for enzymes in yeast was coined by :

A)

Louis Pasteur

B)

Kuhne

C)

Edward Buchner

D)

Summer

View Answer
197) The deficiency symptoms of the following mobile element is found first in mature leaves :

A)

nitrogen

B)

iron

C)

calcium

D)

magnesium

View Answer
198) If the shoot apex of any young plant growing in a pot, is cut off, which of the following events are more feasible to occur?

A)

the remaining upper leaves will increase in area

B)

the axillary buds in the remaining upper leaves will grow faster

C)

Regeneration of apical bud will occur

D)

The plant dies

View Answer
199) The continuation of excretion of watery liquid for some time from the stump of a well-watered pot plant after cutting off the shoot slightly above the base is due to :

A)

transpiration pull

B)

root pressure

C)

cohesive force of water

D)

absorption of minerals by roots

View Answer
200) The intermediate that connects glycolysis and krebs cycle is :

A)

oxalic acid

B)

pyruvic acid

C)

citric acid

D)

Acetyl - Co - A

View Answer

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