Solved papers for EAMCET Medical EAMCET Medical Solved Paper-1999

EAMCET Medical Solved Paper-1999 Total Questions - 200

1) A ladder 2.5 m long and 150 N weight has Us centre of gravity l m from the bottom. A weight 40 N is attached to the Top end. The work required to raise the ladder from the horizontal position to the vertical position is:

A)

190 J

B)

250 J

C)

285 J

D)

475 J

View Answer
2) Two bodies having the same mass 2 kg each, have different surface areas \[50{{m}^{2}}\]and \[100{{m}^{2}}\]in contact with a horizontal plane. If the coefficient of friction is 0.2. the forces of friction that come into play when they are in motion will be in the ratio:

A)

1 : 1

B)

1 : 2

C)

2 : 1

D)

1 : 4

View Answer
3) A stone is tied up to the end of a string and whirled in a vertical circle. The tension of the string is T1 when the stone is at the highest point and T2 ,when it is at the lowest point, then:

A)

\[{{T}_{1}}<2{{T}_{2}}\]

B)

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

C)

\[{{T}_{1}}>{{T}_{2}}\]

D)

\[{{T}_{1}}<{{T}_{2}}\]

View Answer
4) A van is moving with a speed of 72 km/h on a level road. Where the coefficient of friction between its tyres and road is 0.5. The minimum radius of curvature, that the road must have, for safe driving of van is\[(g=10m{{s}^{-2}})\]:

A)

80 m

B)

40 m

C)

20 m

D)

4 m

View Answer
5) A thin uniform rod AB of mass m and length l is hinged at one end A to the level floor. Initially if stands vertically and is allowed to fall freely to the floor in the vertical plane. The angular velocity of the rod, when its end B strikes the floor is {g is acceleration due to gravity):

A)

\[\left( \frac{mg}{l} \right)\]

B)

\[{{\left( \frac{mg}{3l} \right)}^{1/2}}\]

C)

\[\left( \frac{g}{l} \right)\]

D)

\[{{\left( \frac{3g}{l} \right)}^{1/2}}\]

View Answer
6) Two satellites of mass 50 kg and 100 kg revolve around the earth in circular orbits of radius 9 R and 16 R respectively, where R is the radius of earth. The speeds of the two satellites will be in the ratio:

A)

3/4

B)

4/3

C)

9/16

D)

16/9

View Answer
7) The escape velocities on two planets of masses m1 and m2 having same radius, are v1 and v2 respectively, Then:

A)

\[\frac{{{v}_{1}}}{{{v}_{2}}}=\frac{{{m}_{1}}}{{{m}_{2}}}\]

B)

\[\frac{{{v}_{2}}}{{{v}_{1}}}=\frac{{{m}_{1}}}{{{m}_{2}}}\]

C)

\[\frac{{{v}_{1}}}{{{v}_{2}}}={{\left( \frac{{{m}_{1}}}{{{m}_{2}}} \right)}^{2}}\]

D)

\[\frac{{{v}_{1}}}{{{v}_{2}}}=\sqrt{\frac{{{m}_{1}}}{{{m}_{2}}}}\]

View Answer
8)  he displacement of a particle executing simple harmonic motion, from its mean position is given by \[x=0.5\,\sin \,(10\pi l+1.5x)\cos (10\pi l+1.5\pi ).\] The ratio of the maximum velocity to the maximum acceleration of the body is given by:

A)

\[20\pi \]

B)

\[\frac{1}{20\,\pi }\]

C)

\[\frac{1}{10\,\pi }\]

D)

\[10\,\pi \]

View Answer
9) The percentage change in the time period of a seconds pendulum when its amplitude is reduced by 50% is:

A)

75%

B)

25%

C)

0%

D)

50%

View Answer
10) Y, K and \[\eta \] represent respectively the Youngs modulus, bulk modulus and rigidity modulus of a body. If rigidity modulus is twice the bulk modulus, then:

A)

\[Y=\frac{5}{18}K\]

B)

\[Y=\frac{5}{8}\eta \]

C)

\[Y=\frac{9}{5}K\]

D)

\[Y=\frac{18}{5}K\]

View Answer
11) If m is mass, Q is charge and B is magnetic induction, then \[\frac{m}{BQ}\]has the same dimensions as:

A)

frequency

B)

\[\frac{1}{\text{frequency}}\]

C)

velocity

D)

acceleration

View Answer
12) Then the angle between \[\overrightarrow{A}\] and \[\overrightarrow{B}\] is: If \[\overrightarrow{A}+\overrightarrow{B}=\overrightarrow{C}\] and \[\left| \overrightarrow{A} \right.\left| = \right.\left| \overrightarrow{B} \right.=\left| \overrightarrow{C} \right.\left| {} \right.\]

A)

\[45{}^\circ \]

B)

\[60{}^\circ \]

C)

\[90{}^\circ \]

D)

\[120{}^\circ \]

View Answer
13) The distances travelled by a body starting from rest and travelling with uniform acceleration, in successive intervals of time of equal duration will be in the ratio:

A)

1 : 2 : 3

B)

1 : 2 : 4

C)

1 : 3 : 5

D)

1 : 5 : 9

View Answer
14) A stone is dropped freely, while another is thrown vertically downward with an initial velocity at 2 m/s from the same point, simultaneously. The time required by them to have a distance of separation 22 m between them is:

A)

11 s

B)

5.5 s

C)

44 s

D)

22 s

View Answer
15) The angle of projection of a projectile, for which the horizontal range and the maximum height are equal, is:

A)

\[{{\tan }^{-1}}\left( \sqrt{(3)} \right)\]

B)

\[{{\tan }^{-1}}\left( 4 \right)\]

C)

\[{{\tan }^{-1}}\left( \sqrt{2} \right)\]

D)

\[{{\tan }^{-1}}\left( \frac{1}{\sqrt{3}} \right)\]

View Answer
16) A person of 70 kg mass is lifted by a helicopter with the help of rope, hanging from it. If the helicopter is rising up with an acceleration \[4\text{ }m{{s}^{-2}},\] the tension in the rope is (taking\[g=10m{{s}^{-2}}\]):

A)

250 N

B)

490 N

C)

980 N

D)

1960 N

View Answer
17) A force of 100 N acts on a body of mass 2 kg for 10 s. The change in momentum of the body is:

A)

100 Ns

B)

250 Ns

C)

500 Ns

D)

1000 Ns

View Answer
18) In an elastic collision between two bodies. the physical quantity that is conserved is:

A)

kinetic energy

B)

momentum

C)

potential energy

D)

kinetic energy and momentum

View Answer
19) The kinetic energy of a body is four limes its momentum. Its velocity is:

A)

\[2\text{ }m{{s}^{-1}}\]

B)

\[4m{{s}^{-1}}\]

C)

\[8\text{ }m{{s}^{-1}}\]

D)

\[16m{{s}^{-1}}\]

View Answer
20) When a capillary tube is lowered into water, the mass of water, raised in the tube, above the outside water level is 5 g. If the radius of the tube is doubled, the mass of water that rises in the capillary tube, above the outside water level is:

A)

1.25 g

B)

5 g

C)

10 g

D)

20 g

View Answer
21) Two copper rods of same length, but of different diameters of cross-section are given same amount of heat. Assuming no heat losses:

A)

thick rod expands more

B)

thin rod expands more

C)

both rods expand equally

D)

thick rods expand more tor large quantity of heat and thin rods expand more for small quantity of heal

View Answer
22) When water is heated from \[0{}^\circ C\] to \[10{}^\circ C\], its volume:

A)

decreases continuously

B)

first decreases and then increases

C)

first increases and then decreases

D)

increases continuously

View Answer
23) An air bubble doubles its radius on raising from the bottom of water reservoir to the surface of water in it. if the atmospheric pressure is equal to 10 m of water, the height of water in the reservoir is:

A)

10 m

B)

20 m

C)

70 m

D)

80 m

View Answer
24) For an adiabatic change in a gas. if P, V, T denote pressure, volume and absolute temperature of gas at any time and 7 is ratio of specific heats of gas, which of the following equations is true?

A)

\[{{T}^{\gamma }}{{P}^{1-\gamma }}\]= constant

B)

\[{{T}^{\gamma -1}}{{P}^{\gamma }}\]= constant

C)

\[{{T}^{\gamma -1}}{{V}^{\gamma }}\]= constant

D)

\[{{T}^{\gamma }}{{V}^{\gamma }}\]= constant

View Answer
25) Boiling water at \[100{}^\circ C\] and cold water at \[t{}^\circ C\] are mixed in the ratio 1:3 and the resultant maximum temperature was \[37{}^\circ C\]. Assuming no heat losses, the value of t is:

A)

\[4{}^\circ C\]

B)

\[9{}^\circ C\]

C)

\[12{}^\circ C\]

D)

\[16{}^\circ C\]

View Answer
26) 20 g of ice and 20 g of hoi water are mixed. When the ice is melted the temperature of the mixture was found to be \[0{}^\circ C\]. The temperature of hot water taken should (L = 80 cal/g):

A)

\[40{}^\circ C\]

B)

\[72{}^\circ C\]

C)

\[80{}^\circ C\]

D)

\[96{}^\circ C\]

View Answer
27) A wall has two layers A and B, made of two different materials. The thermal conductivity of material A is twice that of B. If two layers have the same thickness and under thermal equilibrium, the temperature difference across the wall is \[48{}^\circ C\], the temperature difference across layer B is:

A)

\[40{}^\circ C\]

B)

\[32{}^\circ C\]

C)

\[16{}^\circ C\]

D)

\[24{}^\circ C\]

View Answer
28) The frequency of transverse vibration in a stretched string is 200 Hz. If the tension is increased four times and the length is reduced to one-fourth, the original values, the frequency of vibrations will be:

A)

25 Hz

B)

200 Hz

C)

400 Hz

D)

1600 Hz

View Answer
29) Equation of a stationary wave is given by:

A)

\[y=A\,\sin \,k(x-vt)\]

B)

\[y=2A\,\sin \,kx\cos \omega t\]

C)

\[y=A\,\cos \,2\pi \left( \frac{kx}{\lambda }-\frac{t}{T} \right)\]

D)

\[y=A\,\cos \frac{2\pi vt}{\lambda }\]

View Answer
30) The ratio of densities of nitrogen and oxygen is 14:16. The temperature at which the speed of sound in nitrogen will be same as that of oxygen at \[55{}^\circ C\] is

A)

\[35{}^\circ C\]

B)

\[48{}^\circ C\]

C)

\[65{}^\circ C\]

D)

\[14{}^\circ C\]

View Answer
31) Two tuning forks A and B produce 6 beats per second. If the frequency of A is 512 Hz. The fork B is loaded with wax and they produce 4 beats per second- The frequency of B is:

A)

506 Hz

B)

516 Hz

C)

508 Hz

D)

518 Hz

View Answer
32) In a compound microscope the image produced by the objective is:

A)

real, enlarged and erect

B)

real, enlarged and inverted

C)

virtual, enlarged and erect

D)

virtual, enlarged and inverted

View Answer
33) An astronomical telescope has a length of 1.1 m and a magnifying power 10. The focal lengths of objective and eye lenses are:

A)

0. 1 m and 1.0 m

B)

1.0 m and 0.1 m

C)

0.6 m and 0.5 m

D)

0.5 m and 0.6 m

View Answer
34) A ray of light is incident on one of the refracting faces of an equilateral prism at an angle of incidence \[48{}^\circ C\] in the minimum deviation position. The angle of deviation produced by the prism is:

A)

\[48{}^\circ C\]

B)

\[36{}^\circ C\]

C)

\[24{}^\circ C\]

D)

\[18{}^\circ C\]

View Answer
35) Two sources of light are said to be coherent, if light waves produced by them have:

A)

the same wavelength

B)

the same wavelength and constant phase difference

C)

the same amplitude

D)

the same wavelength and same amplitude

View Answer
36) The null points are on the axial line of a bar magnet, when it is placed such that its south pole points:

A)

south

B)

east

C)

north

D)

west

View Answer
37) If two bar magnets of different lengths have equal moments, then the pole strength is:

A)

equal for both the magnets

B)

lesser for shorter magnet

C)

more for longer magnet

D)

more for shorter magnet

View Answer
38) If a diamagnetic material is placed in a magnetic field, the flux density inside material compared to that outside will be:

A)

slightly less

B)

slightly more

C)

very much more

D)

same

View Answer
39) Two equal unlike charges, placed 3 cm. Apart in air. attract each other with a force of 40 N. The magnitude of each charge in micro coulombs is, take \[\frac{1}{4\pi {{\varepsilon }_{0}}}=9\times {{10}^{9}}\,SI\]units:

A)

0.2

B)

2

C)

20

D)

200

View Answer
40) At any point on the right bisector of line joining two equal and opposite charges:

A)

the electric field is zero

B)

the electric potential is zero

C)

the electric potential decreases with increasing distance from centre

D)

the electric field is perpendicular to the line joining the charges

View Answer
41) A double ionized He+2 atom travels at right angles lo a magnetic field of induction 0.4 T at a velocity of 10 m/s describing a circle of radius r. A proton travelling with the same speed in the same direction in the same field will describe a circle radius:

A)

\[\frac{r}{4}\]

B)

\[\frac{r}{2}\]

C)

\[r\]

D)

\[2\,r\]

View Answer
42) For a thermo couple if the cold junction is maintained at \[0{}^\circ C\] the inversion temperature is \[680{}^\circ C\]. its neutral temperature is:

A)

\[1360{}^\circ C\]

B)

\[680{}^\circ C\]

C)

\[340{}^\circ C\]

D)

\[170{}^\circ C\]

View Answer
43) A dielectric of thickness 5 cm and dielectric constant 10, is introduced in between the plates of a parallel plate capacitor having plate area 500 cm2 and separation between plates 10 cm. The capacitance of the, capacitor is \[(If\,{{\varepsilon }_{0}}=8.8\times {{10}^{-12}}\,SI\,units):\]

A)

8 pF

B)

6 pF

C)

4 pF

D)

20 pF

View Answer
44) The total number of spectral lines expected to be emitted by atomic hydrozen excited to the 5th energy level:

A)

4

B)

5

C)

10

D)

20

View Answer
45) The threshold frequency for photo electric effect for a metal surface is found to be \[4.8\times {{10}^{16}}Hz,\] the stopping potential required when the metal is irradiated by radiation of frequency \[5.6\times {{10}^{16}}Hz\]is: (taking \[h=6.6\times {{10}^{-34}}J-s\]and\[e=6.6\times {{10}^{-19}}C\])

A)

22.4 V

B)

33 V

C)

66 V

D)

198 V

View Answer
46) If the operating voltage of an X-ray tube is increased:

A)

X-rays intensity increases

B)

X-rays wavelength limit on the maximum side increases

C)

X-rays wavelength limit on minimum side decreases

D)

X-rays intensity decreases

View Answer
47) In each fission of \[{{U}^{235}},200\]MeV of energy is released. If a reactor produces 100 MW power the rate of fission in ii will be:

A)

\[3.125\times {{10}^{18}}\]per min

B)

\[3.125\times {{10}^{17}}\]per sec

C)

\[3.125\times {{10}^{17}}\]per min

D)

\[3.125\times {{10}^{18}}\]per sec

View Answer
48) The nuclear force between two protons is \[{{F}_{pp}}\]between two neutrons is \[{{F}_{nn}}\]and between a proton and a neutron is F , then:

A)

\[{{F}_{pp}}>{{F}_{pn}}>{{F}_{nn}}\]

B)

\[{{F}_{pp}}>{{F}_{nn}}>{{F}_{pn}}\]

C)

\[{{F}_{pp}}={{F}_{pn}}={{F}_{mn}}\]

D)

\[{{F}_{nn}}>\text{ }{{F}_{pp}}>~{{F}_{pn}}\]

View Answer
49) The width of forbidden gap in silicon crystal is 1.1 eV. When the crystal is converted into n- type semiconductor the distance of Fermi level from conduction band is:

A)

greater than 0.55 eV

B)

equal to 0.55 eV

C)

lesser than 0.55 eV

D)

equal 1.1 eV

View Answer
50) The donor impurity to be added for doping germanium crystal will be of valency:

A)

2

B)

3

C)

4

D)

5

View Answer
51) In the nuclear reaction \[_{13}A{{l}^{27}}(d,\alpha )x,X\]is:

A)

\[{{\,}_{6}}{{C}^{12}}\]

B)

\[{{\,}_{14}}S{{i}^{30}}\]

C)

\[{{\,}_{12}}M{{g}^{25}}\]

D)

\[{{\,}_{11}}N{{a}^{24}}\]

View Answer
52) The conjugate acid of \[\text{N}_{3}^{-}\] (Azide ion) is :

A)

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

B)

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

C)

\[NH_{2}^{-}\]

D)

\[N_{2}^{-}\]

View Answer
53) Which of the following form of sulphur can be prepared by pouring liquid sulphur into cold water?

A)

Monoclinic

B)

Rhombic

C)

Plastic

D)

Colloidal

View Answer
54) Stainless steel vessels are made from the steel containing:

A)

Ni

B)

Mn

C)

W

D)

Cr

View Answer
55) The dielectric constants of \[{{\text{H}}_{\text{2}}}\text{O}\]and \[{{\text{D}}_{\text{2}}}\text{O}\]are 82 and 80.5 respectively. Therefore, the solubility of NaCI in \[{{\text{D}}_{\text{2}}}\text{O}\]is ...... than in water:

A)

equal to

B)

slightly less

C)

slightly higher

D)

very high

View Answer
56) Metals having \[\text{n}{{\text{s}}^{\text{1}}}\]the valence electronic configuration:

A)

are strong oxidising agents

B)

are highly electronegative

C)

are highly electropositive

D)

have a first ionisation potential of more than 10 eV/atom

View Answer
57) A vessel contains equal volumes of \[\text{S}{{\text{O}}_{\text{2}}}\]and \[\text{C}{{\text{H}}_{4}}.\]Through a small hole the gases effused into vacuum. After 200 seconds the total volume is reduced to half. What is the ratio of \[\text{S}{{\text{O}}_{\text{2}}}\]and \[\text{C}{{\text{H}}_{\text{4}}}\]remaining in the vessel?

A)

1:2

B)

2:1

C)

1 :1

D)

1:4

View Answer
58) The Lassaignes solution of an organic compound with nitrogen; sulphur and chlorine contains:

A)

\[NaCN,N{{a}_{2}}S,NaCl\]

B)

\[KCN,{{K}_{2}}S,KCl\]

C)

\[AgCl,NaCN,{{K}_{2}}S\]

D)

\[NaNC,FeS{{O}_{4}},KCl\]

View Answer
59) A mixture of carbon monoxide, hydrogen and hydrocarbon is known as:

A)

water gas

B)

carburetted water gas

C)

semi water gas

D)

producer gas

View Answer
60) Hydrolysis of \[\text{SC}{{\text{l}}_{\text{4}}}\] forms :

A)

\[{{H}_{2}}S{{O}_{4}}\]

B)

\[{{H}_{2}}S{{O}_{3}}\]

C)

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

D)

\[{{H}_{2}}S{{O}_{5}}\]

View Answer
61) The r. m. s velocity of a gas at a particular temperature is found to be 12240 cm \[{{\sec }^{-1}}.\]What is its most probable velocity (in cm \[{{\sec }^{-1}}.\]) at the same temperature?

A)

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

B)

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

C)

11280

D)

1128

View Answer
62) Which of the following is used to reduce pure haematite to iron?

A)

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

B)

CO

C)

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

D)

\[{{H}_{2}}/Pd\]

View Answer
63) Which of the following is used in the preparation of ammonal?

A)

\[F{{e}_{2}}O3\]

B)

Al powder

C)

\[CaC{{N}_{2}}+C\] (graphite)

D)

\[NaOH+CaO\]

View Answer
64) What is formed when 3 parts of HCl is mixed with one part of\[\text{HN}{{\text{O}}_{\text{3}}}\]?

A)

\[NO\]

B)

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

C)

\[NOCl\]

D)

\[N{{H}_{4}}Cl\]

View Answer
65) Which one of the following ions has the same number of unpaired electrons as that of \[{{\text{V}}^{\text{3+}}}\] ion?

A)

\[C{{r}^{3+}}\]

B)

\[M{{n}^{2+}}\]

C)

\[N{{i}^{2+}}\]

D)

\[F{{e}^{3+}}\]

View Answer
66) 18 C-H and 7 C-C sigma bonds are present in:

A)

cyclo hexane

B)

3, 3-dimethyl pentane

C)

2, 2, 3-trimethyl pentane

D)

\[n-\] heptane

View Answer
67) How many electrons are present in the M shell of the atom of an element with atomic number 24?

A)

5

B)

6

C)

12

D)

13

View Answer
68) The pH of 1 litre \[\text{ }\!\!~\!\!\text{ NaOH}\] solution is 12. What is the amount in grams of \[\text{ }\!\!~\!\!\text{ NaOH}\] present in this solution?

A)

40

B)

4

C)

0.4

D)

20

View Answer
69) \[\text{Si}{{\text{O}}_{2}}\] is soluble in:

A)

\[{{H}_{2}}S{{O}_{4}}\]

B)

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

C)

\[HF\]

D)

\[HCl\]

View Answer
70) Which of the following does not exhibit allotropy?

A)

P

B)

Bi

C)

Sb

D)

As

View Answer
71) The pH of an aqueous solution of \[{{H}_{2}}{{O}_{2}}\] is \[6.0\text{ }.\]Some chlorine is bubbled through this solution. The pH of the resultant solution will be:

A)

6

B)

7

C)

less than 6

D)

more than 7

View Answer
72) Electron is an alloy of:

A)

\[Mg+Ni\]

B)

\[Ni+Al\]

C)

\[Mg+Al\]

D)

\[Mg+Zn\]

View Answer
73) Which of the following can form compounds with xenon?

A)

\[{{I}_{2}}\]

B)

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

C)

\[B{{r}_{2}}\]

D)

Al

View Answer
74) The test used for carbon-carbon double bond in an alkene is :

A)

Baeyers

B)

carbyl amine

C)

Lassaignes

D)

silver mirror

View Answer
75) Which of the following atomic orbitals is not directed along the axis?

A)

\[{{p}_{x}}\]

B)

\[{{d}_{{{x}^{2}}-{{y}^{2}}}}\]

C)

\[{{d}_{xy}}\]

D)

\[{{d}_{{{z}^{2}}}}\]

View Answer
76) In which of the following compounds the angle between two covalent bonds is highest?

A)

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

B)

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

C)

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

D)

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

View Answer
77) How many grams of phosphoric acid is required to completely neutralise 120g of sodium hydroxide?

A)

49

B)

98

C)

196

D)

9.8

View Answer
78) During the extraction of zinc, ZnO is obtained from zinc blende by :

A)

roasting

B)

cupellation

C)

poling

D)

electrolytic reduction

View Answer
79) Which of the following is more stable?

A)

HF

B)

HI

C)

HCl

D)

HBr

View Answer
80) The IUPAC name of \[{{\text{(}{{\text{C}}_{\text{2}}}{{\text{H}}_{\text{5}}}\text{)}}_{\text{4}}}\text{C}\]is:

A)

tetraethyl methane

B)

2, 2-dimethyl pentane

C)

3, 3-diethyl pentane

D)

neopentane

View Answer
81) The number of periods present in the long form of the periodic table i :

A)

6

B)

7

C)

8

D)

18

View Answer
82) Which of the following is acetone oxime?

A)



B)

C)



D)



View Answer
83) 6 g of urea is dissolved in 16.2 g of water at \[\text{25}{{\,}^{\text{o}}}\text{C}\text{.}\] What is the vapour pressure (in mm) of resulting solution? The vapour pressure of water at \[\text{25}{{\,}^{\text{o}}}\text{C}\text{.}\]is 24 mm:

A)

24

B)

21.3

C)

23.6

D)

18

View Answer
84) Which of the following compounds liberates hydrogen gas on reacting with sodium metal?

A)

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

B)

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

C)

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

D)

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

View Answer
85) Standard reduction potentials of \[S{{n}^{2+}}/Sn\]and \[Z{{n}^{2+}}/Zn\]electrodes are 0.14 V and \[-\text{ }0.74\text{ V}\] respectively. What is the \[{{\text{E}}^{\text{o}}}\] of the following cell in volts \[\text{Zn/Z}{{\text{n}}^{2+}}||S{{n}^{2+}}/Sn\]?

A)

\[-0.6\]

B)

\[-0.88\]

C)

0.88

D)

0.6

View Answer
86) Benzene is a monocyclic compound. It is aromatic because it contains :

A)

6 carbons and 6 hydrogens

B)

3\[\pi -\]bonds

C)

\[6p-\] orbitals

D)

\[(4n+2)\pi \]electrons

View Answer
87) What is the volume in litres of\[\text{0}\text{.1}\,\text{M}\,{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\] required to completely neutralise 1 L of 0.5 \[\text{M}\,\text{NaOH}\]?

A)

5

B)

2.5

C)

0.5

D)

10

View Answer
88) Which of the following compounds exhibit functional isomerism?

A)

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

B)

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

C)

\[{{C}_{2}}{{H}_{5}}Cl\]

D)

\[{{C}_{5}}{{H}_{12}}\]

View Answer
89) Radioactivity of an isotope falls to 1/8 of its original value in 48 days. Its half life period is (in days):

A)

48

B)

16

C)

12

D)

8

View Answer
90) The number of sigma bonds in ethane formed by the overlap of \[s{{p}^{3}}\] and s orbitals is

A)

5

B)

6

C)

7

D)

4

View Answer
91) From the following data for the decomposition of \[{{\text{N}}_{\text{2}}}{{\text{O}}_{\text{4}}}\] at \[\text{30}{{\,}^{\text{o}}}\text{C}\] find out the rate constant (in \[\text{mi}{{\text{n}}^{-1}}\]) Volume of \[{{\text{O}}_{\text{2}}}\] after 10 minutes of the reaction = 90 mL Volume of \[{{\text{O}}_{\text{2}}}\] after completion of the reaction =100 mL:

A)

2.303

B)

0.2303

C)

0.02303

D)

23.03

View Answer
92) The two enzymes present in yeast that an responsible for the formation of ethyl alcohol from molasses in the fermentatiol process are:

A)

invertase, diastase

B)

invertase, zymase

C)

zymase, diastase

D)

invertase, maltase

View Answer
93) What is the amount of heat liberated (in kcal when one mole of aqueous NaOH reacted with one mole of aqueous HCl solution?

A)

22.4

B)

13.7

C)

2.303

D)

0.693

View Answer
94) Which one of the following reaction conditions are used for preparing diethyl ether from ethyl alcohol?

A)

\[HI/200{{\,}^{o}}C\]

B)

Conc. \[{{H}_{2}}S{{O}_{4}}/140{{\,}^{o}}C\]

C)

\[NaOH/70{{\,}^{o}}C\]

D)

\[NaO{{C}_{2}}{{H}_{5}}/27{{\,}^{o}}C\]

View Answer
95) The equilibrium constant for the reaction \[{{H}_{2}}O(g)+CO(g)\rightleftharpoons {{H}_{2}}(g)+C{{O}_{2}}(g)\] 64. The rate constant for the forward reaction is 160, the rate constant for the backward reaction is:

A)

0.4

B)

2.5

C)

6.2

D)

\[10.24\times {{10}^{3}}\]

View Answer
96) Aniline reacts with chloroform in the presence of alkali to give a product with very bad smell. The test is called:

A)

Isocyanide test

B)

Silver mirror test

C)

Baeyers test

D)

Lucas test

View Answer
97) An organic compound reacts (i) with metallic sodium to liberate hydrogen and(ii) with \[\text{N}{{\text{a}}_{\text{2}}}\text{C}{{\text{O}}_{\text{3}}}\]solution to liberate \[\text{C}{{\text{O}}_{2}}.\] compound is:

A)

alcohol

B)

carboxylic acid

C)

ether

D)

an ester

View Answer
98) The compound formed when nitrobenzene is reduced with \[\text{LiAl}{{\text{H}}_{\text{4}}}\] is:

A)

\[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]

B)

\[{{C}_{6}}{{H}_{5}}-NHOH\]

C)

\[{{C}_{6}}{{H}_{5}}N=N{{C}_{6}}{{H}_{5}}\]

D)

\[{{C}_{6}}{{H}_{5}}NHNH{{C}_{6}}{{H}_{5}}\]

View Answer
99) At \[\text{27}{{\,}^{\text{o}}}\text{C}\] one mole of an ideal gas exerted a pressure of 0.821 atmosphere. What is its volume in liters (\[\text{R = 0}\text{.0821}\,\,\text{L}\]atm \[\text{mo}{{\text{l}}^{-1}}{{K}^{-1}}\]?

A)

300

B)

30

C)

0.3

D)

3

View Answer
100) What is the oxidation number of chromium in potassium dichromate?

A)

+7

B)

+5

C)

+6

D)

+4

View Answer
101) An example of terrestrial protozoan is:

A)

Vorliceiia

B)

Giardia

C)

Didymium

D)

Plasmodium

View Answer
102) The infective form of malarial parasite is:

A)

multinucleate sporozoite

B)

cryptomerozoite

C)

cryptozoite

D)

uninucieate sporozoite

View Answer
103) The band of cilia present on the dorsal wall of vestibule of Paramecium is celled:

A)

penniculus

B)

ambulacrum

C)

kinety

D)

quadrulus

View Answer
104) The duration of cycle of golgi in Plasmodium malariae:

A)

24 hours

B)

48 hours

C)

36 to 48 hours

D)

72 hours

View Answer
105) In Euglena, the proteinaceous substance that surrounds the slender part of chromatophore:

A)

pyrenophore

B)

pyrenoid

C)

paramylem

D)

pyrethroid

View Answer
106) Phlebotomus argenlipus aids in the spread of:

A)

kala- azar

B)

malignent tertian fever

C)

gamlia fever

D)

plague

View Answer
107) In sponges, circulation of waler in flagellated chamber is facilitated by:

A)

amoebocytes

B)

pinacocytes

C)

clioanocytes

D)

miocyles

View Answer
108) An animal, which is diploblastic and radially symmertrical is:

A)

Meanderma

B)

Pherelima

C)

Ascaris

D)

Spongilla

View Answer
109) In coeienterates, the mouth in medusa is located on:

A)

hypostome

B)

manubrium

C)

velum

D)

basal disc

View Answer
110) The number of myonemes in muscle tails of epitheliomuscular cells:

A)

2

B)

4

C)

8

D)

9

View Answer
111) The disease caused by a helminth parasite of man that has a gastropoda member as an intermediate host:

A)

Ascariasis

B)

Biiharzsasis

C)

Taeniasis

D)

Enterobiasis

View Answer
112) The number of tastes in each mature proglottid of Taenia is:

A)

one pair

B)

two pairs

C)

three pairs

D)

many pairs

View Answer
113) The function of Mehalis glands in Taeniais:

A)

production of vitalline cells

B)

storage of sperm

C)

formation ofembryophore

D)

lubrication of uterus

View Answer
114) An example of a free living platy helminth with a ciliated body:

A)

Fasciola

B)

Schistosoma

C)

Ditgesia

D)

Enlerobmm

View Answer
115) The host animals for the members of Myzostomida belong to the class:

A)

Holothuroidea

B)

Echinoidea

C)

Crinoidea

D)

Stella roidea

View Answer
116) Leech with setae is:

A)

Hirudinaia

B)

Hirude

C)

Acanthobdella

D)

Pantobdela

View Answer
117) The structural adaptation found in the alimentary canal of cockroach for the conservation of water:

A)

presence of cuticle in the gigsand

B)

peritrophic membrane in masenthon

C)

stomodael wall

D)

rectal papiilae

View Answer
118) In one of the below given the first pair of legs modified into poisonous claws:

A)

Limulus

B)

Spiroin- eplus

C)

Scolopendra

D)

Peripolus

View Answer
119) The pincer like structures present on the stipes of maxillaof cockroach are:

A)

galea

B)

cardo

C)

lacinia

D)

para glossa

View Answer
120) In cockroach, the gland that helps in the formation of oolheca is:

A)

shell gland

B)

mushroom gland

C)

conglobate gland

D)

collaterial glands

View Answer
121) Spiroslreptus belongs to the class:

A)

Chiiopoda

B)

Crustacea

C)

Insecia

D)

Diplopoda

View Answer
122) In cockroach, the female genital pore is located at:

A)

between 9 - 10 terga

B)

in the centre of 8th sternum

C)

between 9 - 10 sternum

D)

below 10th sternum as between - paraprocts

View Answer
123) A cephalopod without a shell:

A)

Sepia

B)

Loligo

C)

Octopus

D)

Nautilus

View Answer
124) Which of the following is a sea urchin:

A)

Emerobhim

B)

Echis

C)

Eclmms

D)

Echneis

View Answer
125) Development of blastopore into anus is seen in:

A)

Hydra

B)

Octopus

C)

Nereis

D)

Ophiolhrix

View Answer
126) Presence of claspers is an important character in:

A)

Sphyrna

B)

Hippocampus

C)

Cyanoglossus

D)

Echenis

View Answer
127) In one of the following fishes, dorsal fin is modified into a sucker:

A)

Neoceratodus

B)

Hippocampus

C)

Torpedo

D)

Echeneis

View Answer
128) In frog coracoid fenestra is associated with:

A)

pelvic girdle

B)

pectoral girdle

C)

skull

D)

vertebral column

View Answer
129) In frog the innominate vein is formed by the union of:

A)

lingual vein and mandibular vein

B)

sub scapular and internal jugular vein

C)

brachial vein and musenio cuianeous vein

D)

external jugular and sub clavian vein

View Answer
130) In frog astragalus is a part of:

A)

wrist

B)

pectoral girdle

C)

ankle

D)

pelvic girdle

View Answer
131) In frog skull, the bone that connects sphenethmoid with maxilla:

A)

pterygoid

B)

squamosal

C)

palatine

D)

pre maxilla

View Answer
132) In frog, the nerve that innervates the retractor bulli muscles of the eye:

A)

optic nerves

B)

oculomotor

C)

pathetic nerve

D)

abducens nerve

View Answer
133) In frog, stratum spongiosum is made up of:

A)

dense connective tissue

B)

loose fibrous connective tissue

C)

fasienti

D)

stratified epithelium

View Answer
134) The blood supply to the eyes of frog is through:

A)

lingual artery

B)

internal carotid artery

C)

palatine

D)

occipito ventral artery

View Answer
135) In frog the hypoglossal nerves are:

A)

1stpair of spinal nerves

B)

12thpair of cranial nerves

C)

9th pair of spinal nerves

D)

7th pair of cranial nerves

View Answer
136) The animal unique to the country where Apteryx is the national bird:

A)

Hatteriu

B)

Lepidosiren

C)

Latimeria

D)

Tylolriton

View Answer
137) One of following pairs of animals is found in country where Neoceralodus is found:

A)

Myrmecobius and Emu

B)

Rhea and Didelphis

C)

Tinarnus and Lepidosiren

D)

Naja and Bungarus

View Answer
138) The animal in which mammary glands does not have teats:

A)

Tachyglossus

B)

Thylacinus

C)

Noioiyclus

D)

Armadillo

View Answer
139) Ratchet movement is associated with:

A)

muscle contraction

B)

ciliary movement

C)

protoplasmic movement

D)

flagellar movement

View Answer
140) Tigroid granules are present in:

A)

muscle cell

B)

nerve cell

C)

gland cell

D)

sperm cell

View Answer
141) The variation in the quantity of cream and fat in the milk produced by the off- springs of two oxen. born of common parents is:

A)

independent assortment of genes

B)

mutation

C)

environmental effect

D)

food habit

View Answer
142) In andalusian fowls, if a cross is made between black fowl and splashed white, what will be the phenolypic ratio in F2:

A)

1: 1: 2

B)

2: 1: 1

C)

3: 1

D)

1: 2: 1

View Answer
143) Coenozoic era refers to the age of:

A)

fishes and reptiles

B)

amphibians and reptriles

C)

birds and mammals

D)

amphibians and fishes

View Answer
144) Eusthernopteron connects:

A)

fishes and amphibians

B)

amphibians and reptiles

C)

reptiles and birds

D)

birds and mammals

View Answer
145) One of the following is known as "oil sardine":

A)

Rastrelliger kanegunta

B)

Atroplus surtensis

C)

Harpodon rechenus

D)

Surdmella longiceps

View Answer
146) Identify the cat fish from the below given fishes:

A)

Calla catla

B)

Cyprinus carpeo

C)

Cirrhina nirigala

D)

Wallago attu

View Answer
147) Lymphoid leucosis in poultry is a:

A)

viral disease

B)

bacterial disease

C)

fungal disease

D)

helminth disease

View Answer
148) Chicks of the first 2 weeks in the brooder hoven are usually susceptible to one of the following:

A)

Mareks disease

B)

fowl pox

C)

ranikhet disease

D)

gomboora disease

View Answer
149) The metal pollutant held responsible for minimata disease is:

A)

mercury

B)

cadmium

C)

arsenic

D)

zinc

View Answer
150) Sterility is caused by this pollutant in water:

A)

cadmium

B)

mercury

C)

copper

D)

manganese

View Answer
151) The earlier institute established at Pusa is now called:

A)

BIS

B)

lCAR

C)

lARl

D)

CSIR

View Answer
152) Balancing roots areseen in :

A)

Dolichos

B)

Pislia

C)

Piper

D)

Vanda

View Answer
153) Root, stem and leaf are modified in:

A)

Dracaena

B)

Aloe

C)

Asparagus

D)

Opuntia

View Answer
154) The following feature, is common in both Balanophora and Casuarina:

A)

parasitism

B)

tree habit

C)

seale leaves

D)

phyllode

View Answer
155) The following plant produces both offsets and bulbils:

A)

Chrysanthemum

B)

Oxalis

C)

Agave

D)

Bryophyllum

View Answer
156) Inflorescence in Jatropha is:

A)

monochasialscorpioid cyme

B)

polychasial cyme

C)

dischasial cyme

D)

solitary flower

View Answer
157) In Fabaceae the floral structures which encloses the essential organs are:

A)

posterior petals

B)

lateral petals

C)

sepals

D)

anterior petals

View Answer
158) Geitonogamyis found in:

A)

Sorghum

B)

Erythrina

C)

Hydrilla

D)

Maize

View Answer
159) Modification of bract in Typhonium is:

A)

seale

B)

spa the

C)

involucre

D)

glume

View Answer
160) Free central placentation is seen in:

A)

Raphanus

B)

Dianthus

C)

Dolichos

D)

Helianthus

View Answer
161) The position of microphyle found in an orthotropous ovule are turned down about160° with reference to funicle. In addition, the ovule and the embryosac are curved. Such a type of ovule is:

A)

anatropous

B)

campylotropous

C)

hemitropous

D)

amphitropous

View Answer
162) Scale bark is seen in:

A)

Terminalia

B)

Mangifera

C)

Psidium

D)

neem

View Answer
163) The scientific term which is not related to the primary constriction of a chromosome is:

A)

centromere

B)

kinomere

C)

kinetochore

D)

chromo mere

View Answer
164) Asafoetidaisa:

A)

tannin

B)

oleoresin

C)

latex

D)

gum resin

View Answer
165) The haploid chromosome number in Succharum is as many times greater in the following as that of Zea mays:

A)

4 fold

B)

2 fold

C)

6 fold

D)

3 fold

View Answer
166) Tyloses are observed in the lumen of:

A)

tracheids

B)

sieve tubes

C)

fibretracheids

D)

xylem vessels

View Answer
167) The genetical importance of raisinghaploids in higher plants through tissue liestheir use in the production of:

A)

homozygous diploid

B)

heterozygous diploids

C)

plants that do not produce flowers

D)

hybrids

View Answer
168) As compared to sclernchyma, parenchymadoes not function in :

A)

gas exchange

B)

nutrient transport

C)

mechanical support

D)

support and gas exchange

View Answer
169) The stele, in the root of the following is tetrarch :

A)

Nicotiana

B)

Helianthus

C)

Gossypium

D)

Trapa

View Answer
170) Trigonella belongs to the family:

A)

Brassicaceae

B)

Caesalpinaceae

C)

Fabaceae

D)

Asteraceae

View Answer
171) The inflorescence in case of Yucca belonging to Liliaceous is:

A)

umbel

B)

calkin

C)

panicle

D)

compound umbel

View Answer
172) Virus cause swollen shoot disease in:

A)

tomato

B)

brinjal

C)

potato

D)

cocoa

View Answer
173) The plant without tuberous roots:

A)

Raphanussativus

B)

Asparagus racemoisus

C)

Solanumtuberosum

D)

Ipomoea butatas

View Answer
174) The general method of propagation for cultivated varieties of Musa is Through :

A)

sucker

B)

stem cuttings

C)

corus

D)

seeds

View Answer
175) LRG 30 is an important variety of the following crop plant grown in A.P.

A)

sorghum

B)

red gram

C)

bajra

D)

groundnut

View Answer
176) The bacterium Eolelovibriobacterio virus is:

A)

autotroph

B)

parasite

C)

saprophyte

D)

symbiont

View Answer
177) Which of the following pathogen do not cause smut disease:

A)

Ustilago

B)

Phyllactmia

C)

Sphacelotheca

D)

Tiilelia

View Answer
178) Butler extensively studied the following disease:

A)

red rot of sugarcane

B)

smut disease of sorghum

C)

blast disease of rice

D)

tikka disease of ground nut

View Answer
179) In the classification of plants, the presence of the following is a primitive character:

A)

zygomorphic flower

B)

epigynous flower

C)

unisexual flower

D)

bisexual flower

View Answer
180) Protoxylem in Selaginella stem is:

A)

endarch

B)

mesarch

C)

exarch

D)

monarch

View Answer
181) In Agaricus during its developmental stages, the cells of the following contain one nucleus:

A)

secondary mycelium

B)

primary mycelium only

C)

secondary and tertiary mycelium

D)

primary and secondary mycelium

View Answer
182) The Calyptra in Funaria is formed from:

A)

archegonium

B)

antheridium

C)

capsule

D)

zygote

View Answer
183) The following species of Cycas is recorded in the forests of A.P.

A)

Cycasrevoluta

B)

Cycaspectinata

C)

Cycasbeddomei

D)

Cycasthomsoni

View Answer
184) Wheat variety introduced from Australia:

A)

Ridley

B)

Sioux

C)

Texas

D)

Dixie

View Answer
185) The results obtained by mass selection are temporary because:

A)

heterozygosity leads to seggregation of character

B)

varieties are weak and less productive

C)

multilocation adaptability is poor

D)

cross pollination is controlled

View Answer
186) The scientist, who first carried putexperiments on hybrid vigour in maize:

A)

Mendel

B)

Shull

C)

Johanson

D)

Kobrenth

View Answer
187) An example of planktonic flora of pondecosystem:

A)

diatoms

B)

Crustations

C)

Hydrilla

D)

Chara

View Answer
188) Lotic ecosystem refers to:

A)

static water system

B)

ecosystem of flowering water

C)

ecosystem of estuaries

D)

deep marine water systems

View Answer
189) The following is a xerophyte, containing airspaces in the stem and roots:

A)

Eichhornia

B)

Opuntia

C)

Aloe

D)

Rhizophora

View Answer
190) In the following, the primary consumer is :

A)

diatoms

B)

Pediastrum

C)

carnivores

D)

rotifers

View Answer
191) The morphogenetic property of cytokinin was first experimentally proved by:

A)

Hannig

B)

Guhaand Maheshwari

C)

Skoogand Miller

D)

Went

View Answer
192) In a plant physiology experiment, a green plant kepi in light is found releasing more units of 18 03. Which of the following compounds would have been supplied to the plant?

A)

\[{{C}_{6}}{{H}_{12}}{{O}_{6}}\]containing \[{{O}_{18}}\]

B)

\[C{{O}_{2}}\]containing\[{{O}_{18}}\]

C)

O zone containing \[{{O}_{18}}\]

D)

\[{{H}_{2}}O\]containing\[{{O}_{18}}\]

View Answer
193) The number of oxidation involving NADH in krebs cycle is:

A)

4

B)

3

C)

2

D)

5

View Answer
194) In non-cyclic photophosphorylation, the site of ATP synthesis Taking place between the following electron carriers is:

A)

PS- II and Q

B)

Cyt \[{{b}_{6}}\]and f

C)

Cyt \[{{b}_{6}}\] and plast ocyanin

D)

PS -I and ferredoxin

View Answer
195) Stomatal closure is induced by :

A)

indole acetic acid

B)

naphthalene acetic acid

C)

indole butyric acid

D)

phenyl mercuric acid

View Answer
196) Which of the following statements is notconsideredasacriteria for essentiality of elements?

A)

In its absent plants fairto reproduce

B)

It plays a role that is replaceable

C)

It is necessary at all stage of development

D)

It affects the metabolism directly

View Answer
197) Munch mass flow hypothesis mainly explain the long distance transport of the following:

A)

mineral salts

B)

sugars

C)

protein

D)

starch

View Answer
198) The enzyme code of enzyme 2, 7, 11 refers to the following main group :

A)

ligase

B)

hydrolase

C)

transferase

D)

lyase

View Answer
199) The following hormone induces dormancyin potatoes :

A)

IAA

B)

gibberellin

C)

abscisicacid

D)

zeatin

View Answer
200) The following is the constituent to nitrogenase:

A)

magnesium

B)

molybdenum

C)

manganese

D)

potassium

View Answer

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