Solved papers for AMU Medical AMU Solved Paper-2004

AMU Solved Paper-2004 Total Questions - 200

1) Deuteron and alpha particle in air are at separation \[1\overset{\text{o}}{\mathop{\text{A}}}\,\] The magnitude of electric field intensity on a-particle due to deuteron is

A)

\[\text{5}.\text{76}\times \text{l}{{0}^{\text{11}}}\text{ N}/\text{C}\]

B)

\[\text{1}.\text{44}\times \text{l}{{0}^{\text{11}}}\text{ N}/\text{C}\]

C)

\[\text{2}.\text{828}\times \text{l}{{0}^{\text{11}}}\text{ N}/\text{C}\]

D)

zero

View Answer
2) If \[{{E}_{1}}\] be the electric field strength of a short dipole at a point on its axial line and \[{{E}_{2}}\]that on the equatorial line at the same distance, then

A)

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

B)

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

C)

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

D)

None of the above

View Answer
3) 20 A current is flowing in a long straight wire. The intensity of magnetic field at a distance of 10 m from the wire, will be

A)

\[\text{4}\times \text{l}{{\text{0}}^{-\text{5}}}\text{Wb}/{{\text{m}}^{\text{2}}}\]

B)

\[\text{2}\times \text{l}{{\text{0}}^{-\text{5}}}\text{Wb}/{{\text{m}}^{\text{2}}}\]

C)

\[3\times {{10}^{-5}}\,Wb/{{m}^{2}}\]

D)

\[\text{8}\times \text{l}{{\text{0}}^{-5}}\text{Wb}/{{\text{m}}^{\text{2}}}\]

View Answer
4) An electron having charge \[1.6\times {{10}^{-19}}C\]and mass \[\text{9}\times \text{1}{{0}^{-31}}\text{kg}\]is moving with \[\text{4}\times \text{1}{{0}^{\text{6}}}\text{ m}/\text{s}\] speed in a magnetic field of \[\text{2}\times \text{1}{{0}^{-\text{1}}}\] T in a circular orbit. The force acting on an electron and the radius of circular orbit will be

A)

\[1.28\times {{10}^{-14}}N,1.1\times {{10}^{-3}}m\]

B)

\[\text{1}.\text{28}\times \text{1}{{0}^{\text{15}}}\text{ N},\text{ 1}.\text{2}\times \text{1}{{0}^{-\text{12}}}\text{ m}\]

C)

\[\text{1}.\text{28}\times \text{l}{{0}^{-\text{13}}}\text{ N},\text{ 1}.\text{1}\times \text{l}{{0}^{-\text{4}}}\text{ m}\]

D)

None of the above

View Answer
5) The capacity of a condenser is \[\text{4}\times \text{1}{{0}^{-6}}\] F and its potential is 100 V. The energy released on discharging it fully will be

A)

0.04 J

B)

0.02 J

C)

0.025 J

D)

0.05 J

View Answer
6) The electric potential at the surface of an atomic nucleus \[\left( \text{Z }=\text{ 5}0. \right)\] of radius 9.0 x 10-13 cm is

A)

\[\text{9}\times \text{1}{{0}^{5}}\text{ V}\]

B)

\[\text{8}\times \text{1}{{0}^{\text{6}}}\text{ V}\]

C)

80 V

D)

9 V

View Answer
7) The half-life of radium is 1620 yr and its atomic weight is 226 kg per kilomol. The number of atoms that will decay from its 1 g sample per second will be (Avogadros number \[\text{N}=\text{6}.0\text{23}\times \text{1}{{0}^{\text{23}}}\text{ atoms}/\text{ mol})\]

A)

\[\text{3}.\text{61}\times \text{l}{{0}^{\text{1}0}}\]

B)

\[\text{3}.\text{61}\times \text{l}{{0}^{\text{12}}}\]

C)

\[\text{3}.\text{11}\times \text{l}{{0}^{\text{15}}}\]

D)

\[\text{31}.\text{1}\times \text{l}{{0}^{\text{15}}}\]

View Answer
8) One milligram of matter converted into energy, will give

A)

9 J

B)

\[9\times {{10}^{3}}J\]

C)

\[9\times {{10}^{5}}J\]

D)

\[9\times {{10}^{10}}J\]

View Answer
9) In a simple microscope, if the final image is located at 25 cm from the eye placed close to the lens, then the magnifying power is

A)

\[\frac{25}{f}\]

B)

\[1+\frac{25}{f}\]

C)

\[\frac{f}{25}\]

D)

\[\frac{f}{25}+1\]

View Answer
10) A black body at 200 K is found to exit maximum energy at a wavelength 14 \[\mu \]m. When its temperature is raised to 1000 K, then wavelength at which maximum energy emitted is

A)

14 mm

B)

7 \[\mu m\]

C)

2.8\[\mu m\]

D)

28mm

View Answer
11) The ratio of thermal conductivity of two rods of different material is 5 4. The two rods of same area of cross-section and same thermal resistance will have the lengths in the ratio

A)

45

B)

91

C)

19

D)

54

View Answer
12) Joule second is the unit of

A)

momentum

B)

angular momentum

C)

work

D)

pressure

View Answer
13) The two slits at a distance of 1 mm are illuminated by the light of wavelength \[\text{6}.5\times \text{l}{{\text{0}}^{-\text{7}}}\text{m}.\] the interference fringes are observed on a serene placed at a distance of 1 m. The distance between third dark fringe and fifth bright fringe will be

A)

0.65 cm

B)

4.8 mm

C)

1.63 mm

D)

3.25 cm

View Answer
14) Two thin lenses, one of focal length + 60 cm and the other of focal length - 20 cm are put in contact, the combined focal length is

A)

15 cm

B)

-15 cm

C)

- 30 cm

D)

30 cm

View Answer
15) When light travels from one medium to the other medium of which the refractive index is different, then which of the following will change?

A)

Frequency, wavelength and velocity

B)

Frequency and wavelength

C)

Frequency and velocity

D)

Wavelength and velocity

View Answer
16) In the circuit shown in the figure, the potential difference across the 4.5\[\mu F\] capacitor is

A)

\[\frac{8}{3}V\]

B)

\[4\,V\]

C)

\[6\,V\]

D)

\[8\,V\]

View Answer
17) When \[_{\text{92}}{{\text{U}}^{\text{235}}}\] undergoes fission, 0.1% its original mass is changed into energy. How much energy is released if 1 kg of \[_{\text{92}}\text{ }{{\text{U}}^{\text{235}}}\] undergoes fission?

A)

\[\text{9}\times \text{1}{{0}^{\text{1}0}}\text{ J}\]

B)

\[\text{9}\times \text{1}{{0}^{\text{11}}}\text{ J}\]

C)

\[\text{9}\times \text{1}{{0}^{\text{12}}}\text{ J}\]

D)

\[\text{9}\times \text{1}{{0}^{13}}\text{J}\]

View Answer
18) The equivalent resistance of the arrangement of resistances shown in the given figure between points P and Q is

A)

60

B)

80

C)

240

D)

160

View Answer
19) A cricketer hits a ball with a velocity 25 m/s at \[60{}^\circ \] above the horizontal. How far above the ground it passes over a fielder 50 m from the bat? (assume the ball is struck very close to the ground)

A)

8.2 m

B)

9.0 m

C)

11.6 m

D)

12.7 m

View Answer
20) It is easier to roll a barrel than pull it along the road. This statement is

A)

not possible

B)

uncertain

C)

false

D)

true

View Answer
21) The diameter of brass road is 4 mm. Youngs modulus of brass is 9 xl010 N/m2. The force required to stretch 0.1% of its length is

A)

360 \[\pi \]N

B)

36 N

C)

\[\text{36}\pi \times \text{1}{{0}^{5}}\text{ N}\]

D)

\[\text{14471}\times \text{1}{{0}^{\text{3}}}\text{ N}\]

View Answer
22) A beam of ions enters normally into a uniform magnetic field of \[\text{4}\times \text{1}{{0}^{-2}}\] T with velocity \[\text{2}\times \text{1}{{0}^{\text{5}}}\text{ m}/\text{s}.\]If the specific charge of the ion - \[\text{5}\times \text{l}{{0}^{\text{7}}}\text{ C}/\text{kg},\]Then the radius of the circular path described will be

A)

0.10 m

B)

0.06 m

C)

0.20 m

D)

0.25 m

View Answer
23) Parsec is a unit of

A)

angle

B)

velocity

C)

time

D)

distance

View Answer
24) If a given mass of gas occupies a volume 10 cc at 1 atm pressure and temperature \[100{}^\circ C\]. What will be its volume at 4 ac= pressure, the temperature being the same?

A)

100 cc

B)

400 cc

C)

104 cc

D)

2.5 cc

View Answer
25) Ultraviolet radiation of 6.2 eV falls on an aluminium foil surface. Work function s 4.2 eV. The kinetic energy of the fastes electron emitted approximately

A)

\[\text{3}.\text{2}\times \text{I}{{\text{0}}^{\text{-21}}}\text{ J}\]

B)

\[\text{3}.\text{2}\times \text{1}{{0}^{-19}}\text{ J}\]

C)

\[\text{3}.\text{2}\times \text{1}{{0}^{-\text{15}}}\text{ J}\]

D)

\[\text{3}.\text{2}\times \text{l}{{\text{O}}^{-17}}\text{ J}\]

View Answer
26) Two gases of equal masses are in thermal equilibrium. If \[{{\text{p}}_{a}},\]\[{{\text{p}}_{b}}\]and \[{{V}_{a}},\]\[{{V}_{b}}\] are their respective pressures and volumes, then which relation is true?

A)

\[2{{p}_{a}}{{V}_{a}}={{p}_{b}}{{V}_{b}}\]

B)

\[{{p}_{a}}\ne {{p}_{b}},{{V}_{a}}={{V}_{b}}\]

C)

\[\frac{{{p}_{a}}}{{{V}_{a}}}=\frac{{{p}_{b}}}{{{V}_{b}}}\]

D)

\[{{p}_{a}}{{V}_{a}}={{p}_{b}}{{V}_{b}}\]

View Answer
27) A thin uniform rod of mass m and length is hinged at the lower end to a level floor and strands vertically. It is now allowed to fall, then its upper end will strike the floor with the velocity

A)

\[\sqrt{2gl}\]

B)

\[\sqrt{5gl}\]

C)

\[\sqrt{3gl}\]

D)

\[\sqrt{mgl}\]

View Answer
28) The magnitude of acceleration of particle executing SHM at the position of maximum displacement is

A)

zero

B)

minimum

C)

maximum

D)

None of these

View Answer
29) Mud houses are cooler in summer and warmer in winter because

A)

mud is a good conductor of heat

B)

mud is a super conductor of heat

C)

mud is a bad conductor of heat

D)

None of the above

View Answer
30) Drift velocity varies with the velocity of electric field as per the relation

A)

\[{{v}_{d}}={{E}^{2}}\]

B)

\[{{v}_{d}}\propto E\]

C)

\[{{v}_{d}}\propto \frac{1}{E}\]

D)

\[{{v}_{d}}\propto {{E}^{2}}\]

View Answer
31) If the critical angle for total internal reflection from a medium to vacuum is \[30{}^\circ \], then velocity of light in medium will be

A)

\[\text{1}.\text{5}\times \text{1}{{0}^{\text{8}}}\text{ m}/\text{s}\]

B)

\[\text{2}\times \text{l}{{0}^{\text{8}}}\text{ m}/\text{s}\]

C)

\[\text{3}\times \text{l}{{0}^{\text{8}}}\text{m}/\text{s}\]

D)

\[\text{5}\times \text{l}{{0}^{\text{8}}}\text{m}/\text{s}\]

View Answer
32) What is the momentum of a 10000 kg truck whose velocity is 20 m/s?

A)

\[\text{2}\times \text{1}{{0}^{\text{5}}}\text{ kg m}/\text{s}\]

B)

\[\text{1}\times \text{1}{{0}^{8}}\text{ kg m}/\text{s}\]

C)

4 kg m/s

D)

None of these

View Answer
33) A 10 kg ball moving with velocity 2 m/s collides with a 20 kg mass initially at rest. If both of them coalesce, the final velocity of combined mass is

A)

\[\frac{3}{4}m/s\]

B)

\[\frac{1}{3}m/s\]

C)

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

D)

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

View Answer
34) A 30 g bullet travelling initially at 500 m/s penetrates 12 cm into wooden block. The average force exerted will be

A)

31250 N

B)

41250 N

C)

31750 N

D)

30450 N

View Answer
35) With what minimum acceleration can a fireman slide down a rope whose breaking strength is two third of his weight?

A)

\[\frac{g}{m}\]

B)

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

C)

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

D)

\[\frac{g}{2}\]

View Answer
36) Calculate the force required to separate the glass plate of area \[\text{1}{{0}^{-2}}\text{ }{{\text{m}}^{\text{2}}}\]with a film of water 0.05 mm thick, [surface tension of water is \[\text{7}0\times \text{1}{{0}^{-3}}\text{ N}/\text{m}]\]

A)

25 N

B)

20 N

C)

14 N

D)

28 N

View Answer
37) At which of the following temperature would the molecules of gas have twice the average kinetic energy they have at \[20{}^\circ C\]?

A)

\[40{}^\circ C\]

B)

\[80{}^\circ C\]

C)

\[586{}^\circ C\]

D)

\[313{}^\circ C\]

View Answer
38) Air is expanded from 50 L to 150 L at 2 atm pressure. The external work done is \[\left( \text{1 atm }=\text{1}\times \text{l}{{0}^{\text{5}}}\text{ N}/{{\text{m}}^{\text{2}}} \right)\]

A)

\[\text{2}\times \text{l}{{\text{0}}^{-\text{8}}}\text{J}\]

B)

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

C)

200 J

D)

2000 J

View Answer
39) The mass of moon is 1% of mass of earth. The ratio of gravitational pull of earth on moon and that of moon on earth will be

A)

1 : 1

B)

1 : 10

C)

1 : 100

D)

2 : 1

View Answer
40) At what temperature, the speed of sound in air will become double of its value at \[27{}^\circ C\]?

A)

\[54{}^\circ C\]

B)

\[627{}^\circ C\]

C)

\[327{}^\circ C\]

D)

\[927{}^\circ C\]

View Answer
41) A wave is expressed by the equation \[\text{y}=\text{ }0.\text{5 sin }\pi \left( 0.0\text{1x}-\text{3t} \right)\] Where x, y are in metres and f in second. The speed of propagation will be

A)

150 m/s

B)

300 m/s

C)

350 m/s

D)

250 m/s

View Answer
42) A uniform rope of mass 0.1 kg and length 2.5 m hangs from ceiling. The speed of transverse wave in the rope at upper end and at a point 0.5 m distance from lower end will be

A)

\[\text{5 m}/\text{s},\text{ 2}.\text{24 m}/\text{s}\]

B)

\[\text{1}0\text{ m}/\text{s},\text{ 3}.\text{23 m}/\text{s}\]

C)

\[\text{7}.\text{5 m}/\text{s},\text{ 1}.\text{2 m}/\text{s}\]

D)

None of the above

View Answer
43) If the horizontal and vertical component of earths magnetic field are equal at a certain place, the angle of dip is

A)

\[90{}^\circ \]

B)

\[60{}^\circ \]

C)

\[45{}^\circ \]

D)

\[0{}^\circ \]

View Answer
44) A wire of length L and cross-sectional area A is made of a material of Youngs modulus Y. If the wire is stretched by the amount x. The work done is

A)

\[\frac{YA{{x}^{2}}}{2L}\]

B)

\[\frac{YA{{x}^{2}}}{L}\]

C)

\[YA{{x}^{2}}L\]

D)

\[\frac{YAx}{2L}\]

View Answer
45) The length of an astronomical telescope for normal vision (relaxed eye) will be

A)

\[{{f}_{o}}-{{f}_{e}}\]

B)

\[{{f}_{o}}/{{f}_{e}}\]

C)

\[{{f}_{o}}\times {{f}_{e}}\]

D)

\[{{f}_{o}}+{{f}_{e}}\]

View Answer
46) A biconvex lens is made of material of refractive index 1.5 each of radius of curvature of lens surface is 20 cm. The focal length of lens is

A)

20cm

B)

10cm

C)

25cm

D)

30cm

View Answer
47) An equiconvex lens of glass of focal length 0.1m is cut along a plane perpendicular to principle axis into two equal parts. The ratio of focal length of new lenses formed is

A)

1 : 1

B)

1: 2

C)

2 : 1

D)

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

View Answer
48) In an X-ray tube, electrons bombarded the target produce X-rays of minimum wavelength 1Å. The energy of bombarding electron will be

A)

100 eV

B)

14375 eV

C)

12000 eV

D)

12375 eV

View Answer
49) In producing chlorine through electrolysis.. 100 kW power at 125 V is being consumed. The mass of chlorine per minute liberated, will be                              \[(z=0.367\times {{10}^{-6}}kg/C)\]

A)

\[\text{17}.\text{61}\times \text{l}{{\text{0}}^{\text{-3}}}\text{ kg}\]

B)

\[10.61\times {{10}^{-3}}kg\]

C)

\[\text{12}.\text{61}\times \text{1}{{0}^{-3}}\text{kg}\]

D)

None of the above

View Answer
50) The current-voltage graph for a given men. wire at two different temperatures \[{{T}_{1}}\]and are shown in given figure, which of the relation is correct from the following?

A)

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

B)

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

C)

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

D)

None of these

View Answer
51) When \[C{{H}_{3}}COOH\] reacts with \[C{{H}_{3}}-MgX\]

A)

\[C{{H}_{3}}COX\] is formed

B)

hydrocarbon is formed

C)

acetone is formed

D)

alcohol is formed

View Answer
52) A cyclic hydrocarbon molecule has all the carbon and hydrogen in a single plane. All the carbon-carbon bonds are of same length, less than \[1.54\,\overset{o}{\mathop{A}}\,\], but more than \[1.34\,\overset{o}{\mathop{A}}\,\]. The C?C bond angle will be

A)

                \[{{109}^{o}}28\]

B)

\[{{100}^{o}}\]

C)

                \[{{180}^{o}}\]

D)

  \[{{120}^{o}}\]

View Answer
53) Which will reduce zinc oxide to zinc?

A)

Mg

B)

Pb

C)

Cu

D)

Fe

View Answer
54) Some chemists at ISRO wished to prepare a saturated solution of a silver compound and they wanted it to have the highest concentration of silver ion possible. Which of the following compounds, would they use? \[{{K}_{sp}}(AgCl)=1.8\times {{10}^{-10}}\]                                 \[{{K}_{sp}}(AgBr)=5.0\times {{10}^{-13}}\]                                 \[{{K}_{sp}}(A{{g}_{2}}Cr{{O}_{4}})=2.4\times {{10}^{-12}}\]

A)

AgCl

B)

AgBr

C)

\[A{{g}_{2}}Cr{{O}_{4}}\]

D)

Any of these

View Answer
55) By Wurtz reaction, a mixture of methyl iodide and ethyl iodide gives

A)

butane

B)

ethane

C)

propane

D)

a mixture of the above three

View Answer
56) Addition of \[SnC{{l}_{2}}\] to \[HgC{{l}_{2}}\] gives precipitate

A)

white turning to red

B)

white turning to grey

C)

black turning to white

D)

None of the above

View Answer
57) In fermentation by zymase, alcohol and \[C{{O}_{2}}\]are obtained from

A)

invert sugar

B)

glucose

C)

fructose

D)

All of these

View Answer
58) The stability of ferric ion is due to

A)

half filled \[f\]-orbitals

B)

half filled d-orbitals

C)

"completely filled \[f\]-orbitals

D)

completely filled d-orbitals

View Answer
59) Electron affinity is positive, when

A)

O changes into \[{{O}^{-}}\]

B)

\[{{O}^{-}}\] changes into \[{{O}^{2-}}\]

C)

O changes into \[{{O}^{+}}\]

D)

electron affinity is always negative

View Answer
60) lonisation potential for a noble gas is

A)

maximum in a period

B)

minimum in a period

C)

either minimum or maximum

D)

constant

View Answer
61) Ethyl amine on acetylation gives

A)

N-ethyl acetamide

B)

acetamide

C)

methyl acetamide

D)

None of the above

View Answer
62) Strongest oxidising agent among halogen is

A)

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

B)

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

C)

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

D)

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

View Answer
63) Which reagent can convert acetic acid into ethanol?

A)

Na + alcohol

B)

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

C)

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

D)

Sn + HCl

View Answer
64) In presence of moisture, \[S{{O}_{2}}\] can

A)

act as oxidant

B)

act as reductant

C)

gain electron

D)

not act as reductant

View Answer
65) Acetals are

A)

ketones

B)

diethers

C)

aldehyde

D)

hydroxy aldehydes

View Answer
66) The principle involved in the classification of basic radicals, is

A)

common ion effect

B)

solubility product

C)

valency of radicals

D)

strength of salt

View Answer
67) Formation of diethyl ether from ethanol is based on a

A)

dehydration reaction

B)

dehydrogenation reaction

C)

hydrogenation reaction

D)

homolytic fission reaction

View Answer
68) Hypo-phosphorus acid, \[{{H}_{3}}P{{O}_{2}}\] is

A)

a monobasic acid

B)

atribasicacid

C)

a dibasic acid

D)

not acidic at all

View Answer
69) What is obtained when acetyl chlorids is heated with benzene in presence of anhydrous is \[AlC{{l}_{3}}\]?

A)

Acetyl benzoic acid

B)

Anisol

C)

Acetophenone

D)

Chlorobenzene

View Answer
70) Which gas is used in airated ware:

A)

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

B)

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

C)

CO

D)

Water vapours

View Answer
71) The refluxing of \[{{(C{{H}_{3}})}_{2}}NCO{{H}_{3}}\], with acid gives

A)

\[{{(C{{H}_{3}})}_{2}}NH+C{{H}_{3}}COOH\]

B)

\[{{(C{{H}_{3}})}_{2}}NCOOH+C{{H}_{4}}\]

C)

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

D)

\[2C{{H}_{3}}N{{H}_{2}}+C{{H}_{3}}COOH\]

View Answer
72) Which is obtained on treating phenol with cone. \[HN{{O}_{3}}\]?

A)

B)

C)

D)

None of the

View Answer
73) Solder is an alloy of lead with

A)

copper

B)

zinc

C)

nickel

D)

tin

View Answer
74) Arrange \[NH_{4}^{+}{{H}_{2}}O,\,{{H}_{3}}{{O}^{+}}\], HF and \[O{{H}^{-}}\] in increasing order of acidic nature

A)

\[{{H}_{3}}{{O}^{+}}<NH_{4}^{+}<HF<O{{H}^{-}}<{{H}_{2}}O\]

B)

\[NH_{4}^{+}<HF<{{H}_{3}}{{O}^{+}}<{{H}_{2}}O<O{{H}^{-}}\]

C)

\[O{{H}^{-}}<{{H}_{2}}O<NH_{4}^{+}<HF<{{H}_{3}}{{O}^{+}}\]

D)

\[{{H}_{3}}{{O}^{+}}>HF>{{H}_{2}}O>NH_{4}^{+}>O{{H}^{-}}\]

View Answer
75) Which of the following radicals, gives the apple green flame during flame test?

A)

\[B{{a}^{2+}}\]

B)

\[S{{r}^{2+}}\]

C)

\[C{{a}^{2+}}\]

D)

\[N{{a}^{+}}\]

View Answer
76) When chlorine is passed through concentrated solution of KOH, the compound formed is

A)

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

B)

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

C)

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

D)

\[KlCO\]

View Answer
77) The equilibrium constant Kp for the reaction, \[{{H}_{2}}(g)+{{I}_{2}}(g)2HI(g)\] is

A)

more than one

B)

less than one

C)

equal to \[{{K}_{c}}\]

D)

zero

View Answer
78) What is the weight of oxygen that is required for the complete combustion of 2.8 kg of ethylene?

A)

9.6kg

B)

96.0kg

C)

6.4kg

D)

2.8kg

View Answer
79) The metal that does not displace hydrogen from an acid is

A)

Ca

B)

Al

C)

Zn

D)

Hg

View Answer
80) The decomposition of \[{{N}_{2}}{{O}_{5}}\] occurs as, \[2{{N}_{2}}{{O}_{5}}\xrightarrow{{}}4N{{O}_{2}}+{{O}_{2}}\], and follows first order kinetics, hence

A)

the reaction is unimolecular

B)

the reaction is bimolecular

C)

\[{{t}_{1/2}}\propto {{a}^{0}}\]

D)

None of the above

View Answer
81) Atomic radii of F and Ne, in \[\overset{o}{\mathop{A}}\,\], are given by

A)

0.72, 0.71

B)

0.72, 1.6

C)

1.6, 1.58

D)

0.71, 0.72

View Answer
82) Which pair has both members from the same period of periodic table?

A)

Cl, Br

B)

Ca, Cl

C)

Na, Ca

D)

Na, Cl

View Answer
83) When dilute aqueous solution of \[AgN{{O}_{3}}\](excess) is added to KI solution, positively charged sol of \[AgI\] is formed due to adsorption of

A)

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

B)

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

C)

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

D)

\[{{K}^{+}}\]

View Answer
84) Which of the following has largest ionic radius?

A)

\[C{{s}^{+}}\]

B)

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

C)

\[N{{a}^{+}}\]

D)

\[{{K}^{+}}\]

View Answer
85) For \[CaC{{O}_{3}}(s)CaO(s)+C{{O}_{2}}(g)\] at\[{{927}^{o}}C\], \[\Delta H=176\,kJ;\] then \[\Delta E\] is

A)

180 kJ

B)

186.4 kJ

C)

166.0 kJ

D)

160 kJ

View Answer
86) The charge required to liberate one gram equivalent of an element is

A)

96500 F

B)

1 F

C)

1C

D)

None of these

View Answer
87) The shape of sulphate ion is

A)

square planar

B)

trigonal

C)

trigonal planar

D)

tetrahedral

View Answer
88) The \[H-H\] bond energy is 430 kJ \[mo{{l}^{-1}}\] and \[Cl-Cl\] bond energy is 240 kJ \[mo{{l}^{-1}}\]. \[\Delta H\] for HCl is -90 k J. The H?Cl bond energy is about

A)

180 kJ \[mo{{l}^{-1}}\]

B)

360 kJ \[mo{{l}^{-1}}\]

C)

213 kJ \[mo{{l}^{-1}}\]

D)

425 kJ \[mo{{l}^{-1}}\]

View Answer
89) In the equation\[{{H}_{2}}S+2HN{{O}_{3}}\xrightarrow{{}}2{{H}_{2}}O+2N{{O}_{2}}+S\] The equivalent weight of hydrogen sulphide is

A)

18

B)

68

C)

34

D)

17

View Answer
90) The energy released in an atom bomb explosion is mainly due to

A)

release of neutrons

B)

release of electrons

C)

greater mass of products than initial material

D)

lesser mass of products than initial material

View Answer
91) Highest entropy is in

A)

hydrogen

B)

water

C)

graphite

D)

mercury

View Answer
92) Which one will liberate Br2 from KBr?

A)

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

B)

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

C)

\[Hl\]

D)

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

View Answer
93) Nuclides

A)

have specific atomic numbers

B)

have same number of protons

C)

have specific atomic number and mass numbers

D)

are isotopes

View Answer
94) Arrhenius equation, is

A)

\[\Delta H=\Delta E+\Delta {{n}_{g}}RT\]

B)

\[\Delta G=\Delta H-T\,.\,\,\Delta S\]

C)

\[K=A\,.\,{{e}^{-{{E}_{a}}/RT}}\]

D)

None of the above

View Answer
95) In which of the following compounds, the oxidation number of iodine is fractional?

A)

\[I{{F}_{3}}\]

B)

\[I{{F}_{5}}\]

C)

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

D)

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

View Answer
96) Non-directional orbital is

A)

4 p

B)

4 d

C)

\[4f\]

D)

3s

View Answer
97) A monoprotic acid in 1.00 M solution is 0.01% ionised. The dissociation constant of this acid is

A)

\[1\times {{10}^{-8}}\]

B)

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

C)

\[1\times {{10}^{-6}}\]

D)

\[1\times {{10}^{-5}}\]

View Answer
98) If both oxygen and helium gases are at the same temperature, the rate of diffusion of \[{{O}_{2}}\] is very close to

A)

4 times that of He

B)

2 times that of He

C)

0.35 times that of He

D)

8 times that of helium

View Answer
99) A white substance having alkaline nature in solution is

A)

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

B)

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

C)

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

D)

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

View Answer
100) A solution of \[FeC{{l}_{3}}\] in water acts as acidic solution due to

A)

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

B)

acidic impurities

C)

dissociation

D)

ionization

View Answer
101) Which of the following is known as pond silk?

A)

Spirogyra

B)

Ulothrix

C)

Nostoc

D)

Anabaena

View Answer
102) Which of the following is incorrectly matched?

A)

                Rabbit- Microlacithal, isolecithal

B)

                Frog- Mesolecithal, centrolecithal

C)

                Human- Mesolecithal, telolecithal

D)

                Birds- Macrolecithal, telolecithal

View Answer
103) In a copulating pair of Pheretima posthuma which of the two processes take place?

A)

                Internal fertilization and reciprocal fertilization

B)

                Cross   fertilization   and   reciprocalfertilization

C)

                Reciprocal fertilization and internal fertilization

D)

                External   fertilization   and   internal fertilization

View Answer
104) A student sets up an experiment on photosynthesis as follows:                 He takes soda water in a glass tumbler and add chlorophyll extracts into the contents and keeps the tumbler exposed to sunlight hoping that he has provided necessary ingredients for photosynthesis to proceed (                                                                                                \[viz,C{{O}_{2}},{{H}_{2}}O,\] chlorophyll and light). What do you think what will happen after, say, a few hours of exposure of light?

A)

                Photosynthesis will take place and glucose will be produced

B)

                Photosynthesis will take place and starch will be produced, which will turn the mixture turbid

C)

                Photosynthesis will not take place because                                                                                                               \[C{{O}_{2}}\] dissolved in soda water escapes into the atmosphere

D)

                Photosynthesis will not take place because intact chloroplasts are needed for the process

View Answer
105) The pesticide most persistent in the soil is

A)

                DDT

B)

                BHC

C)

                dieldrin

D)

                baygon

View Answer
106) An antibody is a

A)

                white corpuscle which attacks invading bacteria

B)

                molecule that specifically inactivates an antigen

C)

                component of the blood

D)

                secretion of mammalian erythrocyte

View Answer
107) ECG is a measure of

A)

                rate of heart beat

B)

                difference in electric potential

C)

                volume of blood pumped

D)

                ventricular contraction

View Answer
108) Vitreous humour is

A)

                colloid

B)

                watery fluid

C)

                mucoid connective tissue

D)

                All of the above

View Answer
109) In respiration, largest amount of energy is produced in

A)

                anaerobic respiration

B)

                Krebs cycle

C)

                glycolysis

D)

                None of the above

View Answer
110) Torpedo is commonly known as

A)

                sucker fish

B)

                electric ray

C)

                globe fish

D)

                sea horse

View Answer
111) Foramen of Panizzae is found in the heart of

A)

                rabbit

B)

                pigeon

C)

                crocodile

D)

                frog

View Answer
112) Which one of the following pesticides is banned now-a-days?

A)

                DDT

B)

                Eldrin

C)

                Aldrin

D)

                Toxaphene

View Answer
113) Camassial teeth are modified for

A)

                crushing

B)

                tearing

C)

                grinding

D)

                cutting

View Answer
114) In the anther wall

A)

                tapetum lies between endothecium an middle layers

B)

                tapetum lies just inner to endothecium

C)

                middle layer is between endothecium and tapetum

D)

                endothecium lies to middle layer

View Answer
115) Insectivorous plants grow in a soil

A)

                deficient in iron

B)

                rich in nitrogen

C)

                deficient in nitrogen

D)

                deficient in calcium

View Answer
116) Aleurone grains are rich in

A)

                fat

B)

                protein

C)

                carbohydrates

D)

                auxins

View Answer
117) Meiosis can be observed in

A)

                tapetal cells

B)

                megaspores

C)

                microspores

D)

                spore mother cells

View Answer
118) Which of the following is not an intermediate in Krebs cycle?

A)

                Acetic acid

B)

                Succinyl Coenzyme - A

C)

                Malic acid

D)

                Citric acid

View Answer
119) The possible beneficial aspect of grazing animals is the

A)

                removal of wild animals and pests

B)

                eradication of weeds

C)

                removal of wild plants

D)

                addition of their excreta into the soil

View Answer
120) Carrier proteins are involved in

A)

                transport of enzymes

B)

                water transport

C)

                active transport of ions

D)

                passive transport of ions

View Answer
121) McClintock is related to

A)

                plasmids

B)

                retroposons

C)

                transposons

D)

                none of these

View Answer
122) Chloroplasts of Spirogyra have

A)

                spiral margin

B)

                smooth or waxy margin

C)

                smooth margin

D)

                None of the above

View Answer
123) Vascular bundles, in which phloem is found on both sides of xylem are called

A)

                collateral

B)

                bicollateral

C)

                radial

D)

                amphicribral

View Answer
124) Aerenchyma is helpful in plants by

A)

                providing buoyancy in hydrophytes

B)

                absorption in stilt roots

C)

                giving mechanical strength to plant

D)

                giving flexibility to plants

View Answer
125) Who proposed the "Cohesion Theory" of ascent sap?

A)

                Strasburger

B)

                Godlewski

C)

                Western

D)

                Dixon and Jolley

View Answer
126) A child has single kidney since birth. This variation is

A)

                hybridization

B)

                negative meristic

C)

                blastogenic

D)

                substantive

View Answer
127) Why is CO poisonous for man?

A)

                CO affects the nerves of the lungs

B)

                CO affects the diaphragm and intercoastal muscles

C)

                CO reacts with oxygen reducing percentage of \[{{O}_{2}}\]in air

D)

                Haemoglobin combines with CO instead and the product cannot dissociate

View Answer
128) Duct of Bellini opens on

A)

                ureter

B)

                renal papilla

C)

                duodenum

D)

                pelvis

View Answer
129) Humus is essential for plant growth because

A)

                it is rich in nutrients and increases the water holding capacity of soil

B)

                it increases aeration of soil

C)

                it increases porocity of soil

D)

                All of the above

View Answer
130) Which of the following is viviparous?

A)

                Running birds

B)

                Whales

C)

                Bats

D)

                Both (a) and (b)

View Answer
131) In short homed cattle, genes for red (R) and white (r) coat colour occur. Cross between red (R R) and white (rr) produced (Rr) roan. This is an example of

A)

                incomplete dominance

B)

                codominance

C)

                complementary genes

D)

                epistasis

View Answer
132) Complex tissue includes

A)

                collenchymas

B)

                apical meristems

C)

                conducting tissue

D)

                idioblast

View Answer
133) Turpentine oil is obtained from

A)

                Pinus longifolia

B)

                Melia azadirachta

C)

                Eucalyptus

D)

                All of the above

View Answer
134) The sclerenchyma of the hypodermis in the Pinus needle helps in

A)

                increasing the absorptive surface of the cell

B)

                checking transpiration

C)

                mechanical support

D)

                photosynthesis

View Answer
135) Sponges are

A)

                pelagic

B)

                free - swimming

C)

                planktonic

D)

                sessile

View Answer
136) Schistosoma is a parasite found in

A)

                testes of frog

B)

                liver

C)

                intestine

D)

                blood

View Answer
137) The recent model for plasma membrane proposed by Singer and Nicolson is

A)

                molecular - lipid model

B)

                lamellar model

C)

                unit membrane model

D)

                fluid mosaic model

View Answer
138) Cells obtained from cancerous tumours are known as

A)

                hybridomas

B)

                myelomas

C)

                polyclonal cells

D)

                monoclonal cells

View Answer
139) Significance of meiosis lies in

A)

                reduction of chromosome number to one half

B)

                maintaining constancy of chromosome number during sexual reproduction

C)

                production of genetic variability

D)

                All of the above

View Answer
140) Which is the connecting link between glycolysis and Krebs cycle?

A)

                Acetyl Co - A

B)

                Pyruvic acid

C)

                Both (a) and (b)

D)

                None of the above

View Answer
141) Mark A correct sequence

A)

                                Anthesis\[\xrightarrow[{}]{{}}\]Meiosis\[\xrightarrow[{}]{{}}\]Pollination \[\xrightarrow[{}]{{}}\]                Syngamy

B)

                                Pollination\[\xrightarrow[{}]{{}}\]Meiosis\[\xrightarrow[{}]{{}}\]Anthesi \[\xrightarrow[{}]{{}}\]Syngamy

C)

                Anthesis\[\xrightarrow[{}]{{}}\]Pollination\[\xrightarrow[{}]{{}}\]Meiosis \[\xrightarrow[{}]{{}}\] Syngamy

D)

                Anthesis\[\xrightarrow[{}]{{}}\]Meiosis\[\xrightarrow[{}]{{}}\]Syngamy \[\xrightarrow[{}]{{}}\]Pollination

View Answer
142) The relationship between the alga Microcystis and the surrounding fauna corresponds to

A)

                ammensalism

B)

                parasitism

C)

                predation

D)

                exploitation

View Answer
143) Lipofusin granules are found in

A)

                nerve cell

B)

                cardiac muscle

C)

                red muscle

D)

                cartilage

View Answer
144) Camel in its hump stores

A)

                water for emergency

B)

                fat for emergency

C)

                both fat and water for emergency

D)

                fat and proteins as reserve food for emergency

View Answer
145) Arrangement of three successive bases in the genetic code signifies

A)

                protein

B)

                nucleic acid

C)

                plasmids

D)

                amino acids

View Answer
146) Potato is a native of

A)

                Brazil

B)

                Peru

C)

                Panama

D)

                Mexico

View Answer
147) The anthers in Solanaceae are

A)

                monothecous, introse

B)

                dithecous, extrose

C)

                dithecous, introse

D)

                monothecous, extrose

View Answer
148) In India there is decline in female population as compared to males, this is because of

A)

                less female reach reproductive age

B)

                number of female children are born less as there is more chance of prenatal death in    case of female child

C)

                female infanticide

D)

                All of the above                 Female infanticide is the route cause of decline in female population in India.

View Answer
149) During embryonic development endoskeleton and muscle develop from which germinal layer?

A)

                Ectoderm

B)

                Endoderm

C)

                Mesoderm

D)

                Blastopore

View Answer
150) The semen fluid consists of sperm cells and secretion from

A)

                seminal vesical, prostate gland, Cowpers gland

B)

                seminal vesicle, testes, uterus

C)

                seminal vesicle, prostate gland, testes

D)

                seminal vesicle, Cowpers gland and testes

View Answer
151) The peculiar feature of Marchantia palmata is

A)

                absence of gemma cup

B)

                presence of androgynous receptacles

C)

                absence of elaters

D)

                All of the above

View Answer
152) Pneumatophores are positively

A)

                geotropic

B)

                phototropic

C)

                aerotropic

D)

                rheotropic

View Answer
153) Entry of pollen grain through micropyle is called

A)

                porogamy

B)

                chalazogamy

C)

                allogamy

D)

                geitnogamy

View Answer
154) A change in the relative abundance of an allele (the allelic frequency) within a population, over a succession of generations is called

A)

                micro evolution

B)

                macro evolution

C)

                co - evolution

D)

                phylogenetic evolution

View Answer
155) The early man whose skeleton is almost indistinguishable from that of modem man is

A)

                Neanderthal man

B)

                Peking man

C)

                Homo erectus

D)

                Cro - magnon man

View Answer
156) Which of these is based on magnetic resonance?

A)

                EEG

B)

                CT scanning

C)

                NMR scanning

D)

                PET scanning

View Answer
157) Broad spectrum antibiotic

A)

                acts on all bacteria and virus

B)

                is effective in very small amount

C)

                acts on both pathogen and host

D)

                acts on a variety of pathogenic micro organisms

View Answer
158) Tunnel vision is associated with

A)

                alcoholism

B)

                smoking

C)

                drug addiction

D)

                epilepsy

View Answer
159) In his bacteriophage experiments, Hershey and Chase demonstrated that DNA is genetic material in

A)

                TMV

B)

                Escherichia coli

C)

                \[{{T}_{2}}\]bacteriophage

D)

                Diplococcus pneumoniae

View Answer
160) Man whose fossils were found in Shivalik hills

A)

                Ramapithecus

B)

                Pithecanthropus

C)

                Australopithecus

D)

                Sinanthropus

View Answer
161) Which of the following is autotrophic?

A)

                Virus

B)

                Mycoplasma

C)

                Nosroc

D)

                All of these

View Answer
162) Germination of pollen grain on the stigma is

A)

                in situ germination

B)

                in vitro germination

C)

                in vivo germination

D)

                autogamy

View Answer
163) The function of tracheal hair is to pass

A)

                mucus out

B)

                mucus in

C)

                air out

D)

                air in

View Answer
164) In Echinodermata, tube feet are related with

A)

                locomotion

B)

                excretory system

C)

                respiratory system

D)

                reproductive system

View Answer
165) Autoradiography technique was used to

A)

                trace the path of carbon in photosynthesis

B)

                establish that the oxygen evolved during photosynthesis is by photolysis of water molecule

C)

                study photorespiration in certain plants

D)

                find out the absorption maximum of chlorophyll pigments

View Answer
166) Where did an epidemic bone softening disease itai- itai occurred first?

A)

                South Korea

B)

                Japan

C)

                China

D)

                Burma

View Answer
167) The trapping centre of light energy I photosystem- I is

A)

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

B)

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

C)

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

D)

                \[{{P}_{630}}\]

View Answer
168) The membrane which allows passage of certain substances more readily than others is termed as

A)

                permeable

B)

                selectively permeable

C)

                semipermeable

D)

                impermeable

View Answer
169) Which combination of tissues acts together to provide the support to the hypocotyl of a seedling?

A)

                Epidermis and collenchyma

B)

                Xylem and parenchyma

C)

                Epidermis and parenchyma

D)

                Xylem and phloem fibres

View Answer
170) The UV radiation from sun cause reaction that produces

A)

                carbon monoxide

B)

                sulphur dioxide

C)

                ozone

D)

                fluorides

View Answer
171) Slow muscle fibres are found in

A)

                eye

B)

                leg

C)

                stomach

D)

                heart

View Answer
172) Muscle pump is

A)

                beating of heart

B)

                squeezing effect of muscles upon veins running through them

C)

                peristaltic wave that travel along the alimentary canal

D)

                None of the above

View Answer
173) The magnitude of root pressure ranges between

A)

                2-5 atm

B)

                1-5 atm

C)

                0.1 - 0.2 atm

D)

                4-6 atm

View Answer
174) Guttation is a consequence of high

A)

                root pressure

B)

                transpiration pull

C)

                photosynthesis

D)

                respiration

View Answer
175) Which of the following part in cows stomach is specialised for microbial digestion of plant material?

A)

                Rumen

B)

                Reticulum

C)

                Abomassum

D)

                Both (a) and (b)

View Answer
176) Which of the following is/are not an essential micro nutrient?

A)

                Boron

B)

                Nickel and cadmium

C)

                Molybdenum

D)

                Zinc

View Answer
177) Khaira disease of paddy is caused by

A)

                Viral attack

B)

                Mn deficiency

C)

                MLO attack

D)

                Zn deficiency

View Answer
178) The gliding joints are important for gliding movements. One example of such a joint is between the

A)

                zygapophyses of adjacent vertebrae

B)

                humerus and glenoid cavity

C)

                occipital condyle and odontoid process

D)

                femur and tibio fibula

View Answer
179) The term hormone was given by

A)

                Starling for insulin

B)

                Starling for secretin

C)

                Byliss for insulin

D)

                Byliss for secretin

View Answer
180) Cushings syndrome and myxoedema are associated with these glands respectively

A)

                adrenal, thyroid

B)

                thyroid, adrenal

C)

                adrenal, pituitary

D)

                parathyroid, thyroid

View Answer
181) Opening and closing of flowers represent a kind of

A)

                nastic movement

B)

                tropic movement

C)

                mutation

D)

                autonomic movement

View Answer
182) 2,4-D is a/an

A)

                insecticide

B)

                weedicide

C)

                nematicide

D)

                rodenticide

View Answer
183) What is the correct order of nitrogen assimilation?

A)

                \[{{N}_{2~}}\to N{{O}_{2}}\to ~N{{O}_{3}}\to N{{H}_{2}}OH~\to N{{H}_{3}}\]

B)

                \[{{N}_{2~}}\to N{{O}_{3}}\to ~N{{O}_{2}}\to N{{H}_{2}}OH~\to N{{H}_{3}}\]

C)

                \[{{N}_{2~}}\to N{{O}_{2}}\to ~N{{O}_{3}}\to N{{H}_{3}}~\to N{{H}_{2}}OH\]

D)

                \[{{N}_{2~}}\to N{{O}_{3}}\to ~N{{O}_{2}}\to N{{H}_{3}}~\to N{{H}_{2}}OH\]

View Answer
184) Hormone responsible for bolting is

A)

                auxin

B)

                gibberellins

C)

                ethylene

D)

                cytokinin

View Answer
185) Functional kidney of frog tadpole is

A)

                archinephros

B)

                pronephros

C)

                mesonephros

D)

                metanephros

View Answer
186) Loop of Henie is meant for absorption of

A)

                potassium

B)

                glucose

C)

                water

D)

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

View Answer
187) In dark adaptation

A)

                only cones are involved

B)

                only rods are involved

C)

                both rods and cones are involved

D)

                neither rods nor cones are involved

View Answer
188) Part of ear where sound is transduced, is

A)

                tympanic membrane

B)

                malleus, incus and stapes

C)

                semicircular canal

D)

                cochlea

View Answer
189) A microbial mutant requiring growth factor in addition to minimal medium is

A)

                auxotroph

B)

                heterotroph

C)

                autotroph

D)

                syntroph

View Answer
190) When a plant has different types of leaves, the condition is known as

A)

                heterophilly

B)

                anisophilly

C)

                myremecophily

D)

                None of the above

View Answer
191) In plants, glycolate metabolism takes place in

A)

                low concentration of \[C{{O}_{2}}\]

B)

                high concentration of \[C{{O}_{2}}\]

C)

                low concentration of oxygen

D)

                absence of oxygen

View Answer
192) Aristotles lantern is a characteristic of the following class of Echinodermata

A)

                Echinoidea

B)

                Ophiuroidea

C)

                Holothuroidea

D)

                Asteroidea

View Answer
193) The largest corpuscles in mammalian blood are

A)

                basophils

B)

                erythrocytes

C)

                monocytes

D)

                lymphocytes

View Answer
194) A fatty acid not synthesized in man is

A)

                oleic

B)

                linoleic

C)

                palmitoleic

D)

                stearic

View Answer
195) Which of the following cell organelles remake enveloped by a single unit membrane?

A)

                Mitochondria

B)

                Lysosomes

C)

                Nucleus

D)

                Chloroplast

View Answer
196) The promoter region in a lac operon is distinguishable into the following number -x segments

A)

                three

B)

                four

C)

                two

D)

                five

View Answer
197) Old stem of Combretum has

A)

                inter and intra xylary phloem

B)

                inter and extra xylary phloem

C)

                intra and extra xylary phloem

D)

                All of the above

View Answer
198) Prions are

A)

                infectious nucleic add

B)

                infectious lipids

C)

                infectious proteins

D)

                infectious nucleoproteins

View Answer
199) When a sea diver goes very deep, he has to breath on compressed air at high pressure After sometime, he loses his strength to work and feel drowsy. This is because of

A)

                compressed air

B)

                more \[C{{O}_{2}}\]diffusing into molecules

C)

                more \[{{N}_{2}}\]diffusing in blood and body fats

D)

                nervous system does not work properly

View Answer
200) Salivation in man is under the control of

A)

                medulla oblongata

B)

                mesencephalon

C)

                hypothalamus

D)

                cerebellum

View Answer

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