RUHS BPT 2019 Question Paper

Rajasthan University Of Health Sciences Jaipur
राज थान ा िव ान िव िव ालय जयपुर

BPT Entrance Examination 2019 Date : 14 October, 2019
1 Prior to experiments with cathode tubes, the smallest particles that made up matter were believed to be
A atoms
B corpuscles
C electrons
D particles of rarefied air

2 In Millikan’s oil drop experiment, what was the consequence of making the electrical force (q E) equal to the
gravitational force (m g)?
A The oil drops were suspended, motionless in the chamber.
B The oil drops fell downward due to the force of gravity.
C The oil drops fell downward due to the electrical force.
D The oil drops were propelled upward by the electrical force.

3 The correct electronic configuration of Sodium is:
A 2,8,1
B 8,2,1
C 2,1,8
D 2,8,2

4 The atomic number of an atom is the number of _____ in the atom's nucleus.
A Electrons
B Neutrons
C Protons
D Valence electrons

5 Elements in the same column of the Periodic table have common in?
A The same atomic weight
B The same number of electrons in the outermost shell
C The same total number of electrons
D The same number of electron shells

6 The sp3d2 hybridization of central atom of a molecule would lead to

A square planar geometry
B Tetrahedral geometry
C Trigonal bipyramidal geometry
D Octahedral geometry

7 Temperature below which, the gas does not obey ideal gas laws is called
A Boyle's temperature
B inversion temperature
C reduced temperature
D critical temperature

8 An endothermic reaction is one, which occurs
A With evolution of heat
B With absorption of heat
C In forward direction
D No change of heat

9 The factor E+PV is known as
A Heat content
B Enthalpy
C Work done
D Entropy

10 In which of the following process, a maximum increase in entropy is observed?

A dissolution of salt in water
B condensation of water
C sublimation of naphthalene
D melting of ice

11

A 1 × 10–5

B 1 × 10–10

C 5

D 5 × 10–8

12 Ions which are attracted towards the anode are known as
A Anion
B Cation
C Radical
D Positron

13 Decease of oxidation Number is known as
A Oxidation
B Reduction
C Neutralization
D Disproportionation

14 Hydrogen has 3 isotopes. Which of the following is NOT one of them?
A Tritium
B Proton
C Deuterium
D Protium

15 One of the following is not called alkaline earth metal.
A barium
B radium.
C Beryllium
D Strontium

16 When Cl2 gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of
chlorine changes from

A Zero to – 1 and zero to +3
B Zero to + 1 and zero to –3
C Zero to + 1 and zero to –5
D Zero to – 1 and zero to +5

17 In which of the following compounds, nitrogen exhibits highest oxidation state?
A N3H

B NH2OH

C N2H4

D NH3

18 An isomer of ethanol is
A Ethanol
B Methanol
C Diethyl ether
D Dimethyl ether

19 Which of the following can’t be used in Freidal Craft’s reactions?
A FeCl3

B FeBr3

C AlCl3

D NaCl

20 Write the IUPAC name of CH3CH2COOH

A Ethyl formic acid
B Ethyl carboxylic acid
C Ethane methanoic acid
D Propanoic acid

21

A

B

C

D

22 The specific rate constant of a first order reaction depends on the
A Concentration of the reactant
B Concentration of the product
C Time
D Temperature

23 The unit of rate constant for the first order reaction is
A Sec-1

B Mol. ltr.-1

C Mol.-1 ltr.sec-1

D Ltr.-1

24 Which of the following statement is incorrect?
A Taj Mahal is affected by hydrocarbons.
B Buildings are adversely affected by acid rain.
C Due to acid rain, microorganisms are affected
D Large amount of acid rain decreases soil fertility.

25 Compounds with identical crystal structure and analogous chemical formula are called
A Isomers
B Isotones
C Allotropes
D Isomorphous

26 Sodium chloride, NaCl usually crystallizes in a face centred cubic lattice. How many ions are in
contact with any single Na+ ion?

A 8
B 6
C 4
D 1

27 Faraday’s laws of electrolysis are related to the
A Atomic number of the cation
B Atomic number of the anion
C Equivalent weight of the electrolyte
D Speed of the cation

28

The half-cell reactions for rusting of iron are given above,
DG° (in kJ) for the reaction is

A –76
B –322
C –122
D –176

29 We have three aqueous solution of NaCl labelled as A, B and C with concentrations of 0.1M, 0.01M and 0.001M
respectively. The value of van’t Hoff factor for these solutions will be in the order
A iA<iB<iC

B iA>iB>iC

C iA=iB=iC

D iA<iB>iC

30 Colligative properties depends on
A Nature of the solute particles
B Number of solute particle
C Physical properties of solute particle
D Natureof solvent particle

31 In Freundlich adsorption isotherm, the value of 1/n is
A 1 in case of physical adsorption
B 1 in case of chemisorption
C Between 0 and 1 in all cases
D Between 2 and 4 in all cases

32 Which one of the following does not involve coagulation?
A Peptization
B Formation of delta regions

C Treatment of drinking water by potash alum
D Clotting of blood by the use of ferric chloride

33 Copper is extracted by _____ method
A self-reduction
B carbon reduction
C electrolytic
D froth floatation

34 Within group 15, the trend in values of ΔaHo(at 298 K) is:

A N > P > As > Sb

B N < P < As < Sb

C Bi > Sb > As > P

D N > P < As < Sb

35 Bond enthalpy terms in group 16 follow which one of the following trends?
A S–S > O–O
B Se–Se > S–S
C S=S > O=O
D S–F < O–F

36 Which statement is correct regarding xenon fluorides (XeF2, XeF4 and XeF6)

A are all gases at 298 K
B are all thermodynamically unstable with respect to Xe and F2

C all react with water, but not at the same rate

D all react with SiO2 at 298 K

37 Matching up correct formula and magnetic property; which pair is correct?

A [Zn(OH2)6]2+; paramagnetic

B [Co(NH3)6]3+; diamagnetic

C [CoF6]3–; diamagnetic

D [V(OH2)6]2+; diamagnetic

38 [Cr(CN)6]3– is expected to be:

A paramagnetic with μeff ≈ 3.87 μB

B diamagnetic

C paramagnetic with μeff < 3.87 μB

D paramagnetic with μeff > 3.87 μB

39 Which metal complex ion is expected to be subject to a Jahn-Teller distortion?

A [Cr(OH2)6]3+

B [Cr(NH3)6]2+

C [Cr(CN)6]3–

D [Cr(bpy)3]2+

40 Which one of the following has a square planar geometry? (Atomic numbers: Co = 27, Ni = 28, Fe =
26, Pt = 78)

A [CoCl4]2–

B [FeCl4]2–

C [NiCl4]2–

D [PtCl4]2–

41 If ‘n’ represents total number of asymmetric carbon atoms in a compound, the possible number of optical isomers
of the compound is
A 2n
B n2

C 2n

D 2n + 2

42 Chlorination of ethane is carried out in presence of
A anhydrous AlBr3

B mercuric chloride

C ultraviolet light

D zinc chloride

43 Anisole can be prepared by the action of methyl iodide on sodium phenate. The reaction is called
A Fittig’s reaction
B Williamson’s reaction
C Wurtz’s reaction
D Etard’s reaction

44 Among the alkenes which one produces tertiary butyl alcohol on acid hydration
A (CH3)2C = CH2

B CH3 – CH = CH – CH3

C CH3 – CH2 – CH = CH2

D CH3 – CH = CH2

45 The correct order of decreasing acid strength of trichloroacetic acid (A), trifluoroacetic acid (B), acetic acid (C) and
formic acid (D) is
A A>B>C>D

B A>C>B>D
C B>A>D>C
D B>D>C>A

46 One mole of a symmetrical alkane on ozonolysis gives two moles of an aldehyde having molecular mass of 44u.
The alkene is:
A Ethene
B Propene
C 1-butene
D 2-butene

47 One strand of DNA has the following sequence of nucleotide 3’ ATTCGCTAT 5’ so the other strand of DNA has
A 5’ TAAGCGATA 3’
B 3’ TAAGCGATA 5’
C 5’ GACGCGATA 3’
D 3’ GACGCGATA 5’

48 Chitin is a
A Polysaccharide
B Nitrogenous polysaccharide
C Lipoprotein
D Protein

49 Of the following, which one is classified as polyester polymer?
A Nylon-66
B Terylene
C Backelite
D Melamine

50 Which polymers occur naturally?
A Starch and Nylon
B Starch and Cellulose

C Proteins and Nylon
D Proteins and PVC

51 The dimensional formula of magnetic lux is

A ML1T-1A-1

B ML1T-2A-1

C ML2T-1A-1

D ML2T-2A-1

52 How systema c errors are eliminated?

A Frequent measurement
B Replacement of instrument
C Finding mean of reading
D Finding variance of reading

53 A person can throw a ball up to a maximum height of 20 m. The maximum horizontal distance that he can throw
the same ball will be
A

B

C 40 m

D 20 m

54 A particle moves on a circle with angular momentum L. If the frequency of rotation is doubled and kinetic energy is
halved, the angular momentum becomes
A L/4

B L/2

C 4L

D 2L

55 A satellite is orbiting just above the surface of aplanet of average density d with a period T. If G
is the universal constant of gravitation, The quantity T2d is equal to

A 1/G

B

C

D

56 The moment of Inertia of a uniform semicircular disc of mass M and radius R about a line perpendicular to the
plane of the disc through the centre is
A ¼(MR2)

B (MR2)

C 2/5(MR2)

D 1/2(MR2)

57 A rocket of lift of mass 3.5x104 kg is launched upwards with an initial acceleration of 10m/s2.
Then the initial thrust to rocket will be

A 3.5 x 105 N

B 7.0 x 105 N

C 3.5 x 104 N

D 3.5 x 106 N

58 The period of oscillation of a simple pendulum is given by T=2 , where l=100cm and is
know to have 1mm accuracy. The period is about 2s. The time of 100oscillations is measured
by a stopwatch of least count 0.1s. The percentage error in g is

A 0.1%

B 1%
C 0.2%
D 0.8%

59 A metallic wire of length ‘L ‘and area of cross section ‘A’ behaves like a spring. If Y is the Young’s modulus of the
rigidity, the spring constant ‘k’ is given by
A YL/A
B YA/L
C YA/(2L)
D 2YA/L

60 Curie temperature is the temperature above which
A A ferromagnetic material becomes paramagnetic
B A paramagnetic material becomes diamagnetic
C A ferromagnetic material becomes diamagnetic
D A paramagnetic material becomes ferromagnetic

61 540 gm of ice at 0o C is mixed with 540 gm of water at 80o C. The resultant temperature of the
mixture would be

A 0o C

B 30o C

C 80o C

D 40o C

62 When a certain amount of a heat is given to a gas under isothermal conditions, it will result in
A a rise in temperature
B external work being done
C an increase in internal energy of the gas
D both external work and rise in temperature

63 A reversible heat engine converts 1/6th heat, which it absorbs from source into useful work.
When the temperature of the sink is reduced by 62o C, its ef iciency is doubled. Then the
temperature of the source is

A 262 K
B 172 K
C 272 K
D 372 K

64 Two spheres A and B of same material have radius 1 m and 4 m, and temperatures 4000 K and 2000 K respectively.
Then the energy radiated by sphere A is
A Greater than that of sphere B
B Less than that of sphere B
C Equal to that of sphere B
D Two times that of sphere B

65 In the steady state, the temperature of an object
A does not change with time but is different in different points on the object
B increases with time
C decreases with time
D follows zeroth law of thermodynamics

66 Thermocouple thermometer works on the principle of
A Peltier effect
B Zeeman effect
C Seebeck effect
D Photoelectric effect

67 The mean free path of an inert gas increases with
A decrease in temperature
B increase in temperature
C Remains constant

D increase in pressure

68 The bob of simple pendulum is a spherical hollow ball filled with water. A plugged hole near the bottom of the
oscillating bob gets suddenly unplugged. The time period of oscillation during draining
A First increase and then decreases to the original value
B First decrease and then increases to the original value
C Remain unchanged
D Continuously increases towards the saturation value

69 The ratio of speed of an object to the speed of sound is called
A Reynolds number
B Avogadro Number
C Mach number
D Fibonacci number

70 The time period of a mass suspended from a spring is T. If the spring is cut into four equal parts and the same mass
is suspended from one of them, the new time period will be
A T
B T/4
C T/2
D 2T

71 In an adiabatic process, there is no
A work done
B change in temperature
C change in internal energy
D exchange of heat

72 If surface tension of the water is 0.075 N/m, what will be the diameter of a water droplet, if
the pressure inside is 0.1 N/cm2 greater than the outside pressure?

A 3 mm

B 6 mm

C 0.3 mm
D 0.6 mm

73 What is the moment of inertia of a rectangular section ( b= width and d=height) about an horizontal axis through
base?
A bd3/3

B bd2/12

C b2 d3/6

D bd3/12

74 Which statement is right for conservative force vector F = Ai + Bj + Ck?

A In rectangular components representation of any vector we have vector F = Ai + Bj + Ck

B In rectangular components representation of any vector we have vector F = Ax + By + Cz

C In rectangular components representation of any vector we have vector F = Fx + Fy + Fz

D In rectangular components representation of any vector we have vector F = Fi + Fj + Fk

75 The mass of a rocket is 1000 kg, which is to be launched from the surface of earth (g=10m/s2
and radius of earth 6400km)). The required energy to launch rocket in free space is

A 6.4x1011 J

B 6.4x1010 J

C 6.4x109 J

D 6.4x108 J

76 A series L-C-R circuit has a resonant frequency of 2 MHz and a Q-factor of 100. Its bandwidth
is

A 20 kHz

B 2kHz

C 4kHz

D 40kHz

77 When a capacitor is added in series in an L-C-R circuit, the impedance of the circuit will

A decrease

B increase

C remain constant

D depend on the frequency of a.c. mains

78 If an electrically charged particle passes through a magnetic ield in a direction perpendicular
to it then the

A Direction of particle remains unchanged
B Speed of the particle remains unchanged
C Velocity remains unchanged
D Acceleration remains unchanged

79 The energy of a proton accelerated through a potential difference of 1 volt is
A 0eV
B 2eV
C 1eV
D 3eV

80 The electric dipole in a uniform electric field is subjected to
A Torque but no force
B Force but no torque
C Neither torque nor force
D Both force and torque

81 Kirchhoff’ law that sum of all electric currents at a junction is zero is based on conservation of
A energy
B momentum
C mass
D charge

82 A length of metallic wire carrying a constant current is a first bent to form a circular loop of one turn and then bent
to form a double loop of small radius. The ratio of magnetic field in the second case to that in the first case would
be
A 1/4
B 1/2
C 1
D 4

83 The series of spectral lines in the spectrum of hydrogen atom that lies partly in the ultra violate and partly in visible
region is called
A Balmer series
B Lyman series
C Paschen series
D Brackett series

84 Laser cooling of atoms is produced due to
A Absorption of photons by atoms
B Scattering of photons by atoms
C Transfer of momentum from photons to atoms
D Transfer of energy from photons to atoms

85 For which of the following material the magnetic susceptibility is nearly independent of temperature
A Ferrite
B diamagnetic
C paramagnetic
D ferromagnetic

86 The X-ray beam coming from an X-ray tube will be
A monochromatic
B Having all wavelength smaller than a certain wavelength
C Having all wavelength larger than a certain wavelength
D Having all wavelength between certain minimum and maximum wavelengths

87 The magni ication of the image formed by a concave mirror of focal length ‘f’ is ‘m’. If the
image is real, the distance of the object from the mirror should be

A mf

B (m+1)f

C f(m-1)/m

D f(m+1)/m

88 The velocity of light emitted by a source as measured by a stationary observer is C. If the
observer moves towards the source with a velocity V then the velocity of light measured by
him would be

A C+V

B C

C C-V

D

89 In a Newton’s ring experiment, the diameter of the nth dark ring changes from 1.2 cm to 1cm when the air space
between the lens and place is replaced by a transparent liquid. The refractive index of liquid is
A 1.44
B 1.33
C 1.55
D 2.33

90 When one leg of Michelson’ interferometer is lengthened by a distance, say x, 150 dark fringes sweep through the
field of view. If the wavelength of light used is 480 nm, the value of x is
A 12000 nm
B 24000 nm
C 36000 nm
D 48000 nm

91 When a triode is used as an amplifier, the phase difference between the input signal and the output voltage is
A

B

C

D

92 The radioactive of an element decreases to half of its original activity Io in a period of 9 years.
After a further period of nine years its activity will be

A Io/2

B Io/3

C Io/4

D Io/9

93 In a semiconductor like silicon, the unit cell is
A Simple cubic
B Body-centered cubic
C hexagonal
D Face-centered Diamond cubic

94 In Boolean algebra is equal to

A

B

C A. B
D A+B

95 A reaction 48Cd107 47Cd
107
may occur

A Either by electron capture or positron emission

B Only by electron capture
C Only by proton emission
D Only by electron emission

96 In a Ramsden’s eyepiece, the focal length if eye lens is f. The distance from the eye lens at
which the image due to objective is formed, is

A f/4

B f/2

C 2f/3

D 11/12f

97 A photosensitive material would emit electrons, if excited by photons beyond a threshold. To
overcome the threshold, one would increase

A Voltage applied to the light source

B Intensity of light
C Wavelength of light
D Frequency of light

98 It is desired to photograph the image of an object placed at a distance 2 m from the plane of mirror. The camera,
which is at distance of 5.5 m from the mirror should be focused for a distance of
A 3m
B 6m

C 4.5m
D 7.5 m

99 A sound absorber attenuates the sound level by 20dB. The intensity decreases by a factor of
A 10
B 102

C 103

D 104

100 A 20 cm long capillary tube is merged in water. The water rises up to 8 cm. If the entire arrangement is put in a
freely falling elevator, the length of water column in the capillary tube will be
A 20 cm
B 12 cm
C 16 cm
D 8 cm