Rajasthan Paramedical 2022 Question Paper

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RUHS Entrance Examination
2022
Question Paper
Paramedical 2022
Q. No. 1 The dimensional formula of Magnetic permeability is, [Given, mass=M, length=L,
0052001 time=T, Current=A]

Option A [M1L2T-2A-2]

Option B [M1L1T-2A-2]

Option C [M1L-1T1A-2]

Option D [M1L1T-2A2]

Q. No. 2
0052002

Q. No. 3
0052003

Option A 6m

Option B 12 m

Option C 18 m

Option D 24 m

Q. No. 4 An object of mass 'm' is initially at rest. This object undergoes a motion with constant
0052004
acceleration. The power delivered to it at time 't' is proportional to

Option A t

Option B t0.5

Option C t2

Option D t3/2

Q. No. 5
0052005

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Option A Q/P

Option B 2P/Q

Option C 2Q/P

Option D P/Q

Q. No. 6 An object of mass 'MA' collides with another stationary object of mass 'MB'. If the
0052006 object MA stops just after the collision. Calculate the coefficient (e) of restitution for
the collision. (e= change in velocity of MB: change in velocity of MA)

Q. No. 7 A solid sphere of radius 'r' is rolling on a horizontal surface. Calculate the ratio of
0052007 rotational energy and total energy.

Option A 1:7

Option B 1:2

Option C 2:7

Option D 5:7

Q. No. 8 What is the moment of inertia of a hollow sphere of radius 'R' and mass 'M' about
0052008 diameter axis?

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Q. No. 9 Two bodies have their moment of inertia 'I' and '2I', respectively about their axis of
0052009 rotation. If their kinetic energies of rotation are equal, their angular velocities will be
in the ratio

Option A 2:1

Option B 1:2

Option D 1:4

Q. No. 10 If the gravitational force varies inversely as m-th power of distance. Then the time
0052010 period of a planet in a circular orbit of radius 'R' around the sun will be proportional to

Correct Option D

Q. No. 11 Calculate the energy needed to launch a 'ms' kg satellite from the earth's surface in a
0052011 circular orbit at an altitude of 4R. [Given, the radius of the earth=R]

Q. No. 12 If the distance between the earth and the sun is 'p'. then the angular momentum of
0052012 the earth around the sun is proportional to

Option A p1/2

Option B p3/2

Option C p5/2

Option D p

Q. No. 13 What is the phase difference between two simple harmonic motions represented by,
0052013

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Q. No. 14
0052014

Option A 2:1

Option B 1:2

Option C 1:1

Option D 1:3

Q. No. 15 Two wires of same length and same material but of radii R and 2R are stretched by
0052015 forces F1 and F2 to produce equal elongation. Calculate the ratio of F1 and F2.

Option A 1:4

Option B 1:3

Option C 2:3

Option D 4:3

Q. No. 16 A uniform rod of mass 'm', area of cross-section 'S', length 'L' and Young's modulus 'Y'
0052016 is hanging from a ceiling. Calculate the elongation of the rod under its own weight

Q. No. 17 If the ratio of the radius of two bubbles is 2:1, then calculate the ratio of the excess
0052017 pressure inside them.
Option A 1:2

Option B 1:3

Option C 1:4

Option D 2:3

Q. No. 18
At what temperature, the density of water is maximum?
0052018

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Q. No. 19
0052019

Option A 96.6 ms-1

Option B 48.3 ms-1

Option C 483 ms-1

Option D 496 ms-1

Q. No. 20
0052020

Option A 80gR

Option B 80R

Option C R ln 80

Option D gR ln 80

Q. No. 21
The p-T relation for an adiabatic process is
0052021

Q. No. 22
Water is used to cool the car engine in radiators, because it has
0052022

Option A High density

Option B Low surface tension

Option C Low density

Option D High specific heat

Correct Option D

Q. No. 23
0052023

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Option D 0

Q. No. 24
A travelling wave reflected at an open boundary undergoes a phase change of
0052024

Option D 0
Correct Option D

Q. No. 25
Which of the following properties show that the light is a transverse wave?
0052025

Option A Reflection
Option B Interference

Option C Diffraction
Option D Polarization

Correct Option D

Q. No. 26
0052026

Option A b=ac
Option B b=1/ac

Correct Option D

Q. No. 27
0052027

Q. No. 28
0052028

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Q. No.
29
0052029

Correct
C
Option

Q. No.
30
0052030

Option A 4/3
Option B 7/3
Option C 4

Option D 8/3
Correct
D
Option

Q. No. 31
The electric field 'E' and current density 'J' have relation
0052031

Q. No. 32
Zener diode is used for
0052032

Option A amplification
Option B rectification

Option C voltage regulation
Option D oscillator

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Q. No. 33 Two wires of same length are shaped into a square and a circle. If they carry same
0052033 current, then the ratio of the magnetic moment is

Q. No. 34
0052034

Q. No. 35
0052035

Q. No. 36
0052036

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Q. No. 37 The induced emf in a coil of 5 H inductance in which current varies from 9 A to 4 A in
0052037 0.2 sec is
Option A 75 V

Option B 100 V
Option C 125 V

Option D 150 V

Q. No. 38
0052038

Q. No. 39 In a transformer, the number of turns in the primary coil are 140 and that in the
0052039 secondary are 280. If the current in the primary is 2 A, then what will be the current
in the secondary coil?
Option A 1A

Option B 2A
Option C 4A

Option D 0.1 A

Q. No. 40
0052040

Option A 10

Option B 20
Option C 45

Option D 60

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Q. No. 41 which component of the electromagnetic spectrum has the longest wavelength?
0052041
Option A Radio Wave

Option B Visible spectrum
Option C Gamma rays

Option D x - rays

Q. No. 42
The range of wavelength of visible light is
0052042

Q. No. 43 A ray of light passes from a medium 'A' having refractive index 1.8 to a medium 'B'
0052043 having refractive index 1.6. Calculate the value of the critical angle.

Q. No. 44
Astigmatism is corrected by using
0052044

Option A Cylindrical lens
Option B Plano-convex lens

Option C Convex lens
Option D Concave lens

Q. No. 45 A concave lens of focal length 'f' forms an image of 1/3 times the size of the object.
0052045 What is the distance of the object from the lens?
Option A f cm

Option B 2f cm
Option C f/2 cm

Option D 3f cm

Q. No. 46
0052046

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Q. No. 47 In Young's double slit experiment, the phase difference between the two waves
0052047 reaching at the location of the third dark fringe is

Q. No. 48
The de-Broglie wavelength of neutrons in thermal equilibrium is
0052048

Q. No. 49
The minimum number of NAND gates used for making OR gate is
0052049
Option A 2
Option B 3
Option C 4

Option D 5

Q. No. 50
0052050

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Option A 30 yr
Option B 25 yr
Option C 20 yr
Option D 15 yr

Q. No. 51
Calculate the amount of water (g) produced by the combustion of 16 g of methane
0082051
Option A 16 g

Option B 32 g
Option C 36 g
Option D 8g

Q. No. 52
Inert pair effect is shown by
0082052
Option A s- block
Option B p- block

Option C d- block
Option D f- block

Q. No. 53
Magnetic quantum number gives information about
0082053

Option A Orbital angular momentum
Option B Spatial orientation of orbital
Option C Size of orbital
Option D Energy of orbital

Q. No. 54
Which of the following method is not a method of concentration of metals
0082054
Option A Smelting

Option B Froath floatation process
Option C Gravity separation
Option D Electromagnetic separation

Q. No. 55
Which of the following has no units
0082055
Option A Electron affinity
Option B Ionization energy
Option C Electronegativity

Option D Enthalpy

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Q. No. 56 The S.I. units of gas constant is
0082056

Option A J K-1 mol-1

Option B J-1 K-1 mol-1

Option C J-1 K mol-1
Option D None of the above

Q. No. 57
In van der waals equation of state of gas law, the constant b is a measure of
0082057
Option A Intermolecular attraction
Option B Intermolecular repulsion

Option C Intermolecular collisions
Option D Volume occupied by the molecules
Correct Option D

Q. No. 58
Which of the following is a state function
0082058
Option A Heat
Option B Work
Option C Internal energy

Option D None of the above

Q. No. 59 The structure of PF5 molecule is
0082059

Option A Square planar
Option B Pyramidal
Option C Pentagonal bipyramidal
Option D Trigonal bipyramidal

Correct Option D

Q. No. 60
Atomic orbitals of carbon in carbon dioxide are
0082060

Option A sp2 hybridized

Option B sp3 hybridized
Option C sp hybridized

Option D sp3d hybridized

Q. No. 61
The pH of solution obtained by mixing 50 ml of 0.4 N HCl and 50 ml of 0.2 N NaOH is
0082061

Option A 2.0
Option B 1.0
Option C - log 2
Option D - log 1

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Q. No. 62 In presence of a catalyst, the value of equilibrium constant
0082062
Option A Increases
Option B Decreases
Option C Remains same

Option D First increases then decreases

Q. No. 63
If reaction quotient Q =1 for the reaction then
0082063

Correct Option D

Q. No. 64
The conjugate acid of NH2-
0082064

Option A NH4

Option B N2H4

Option C NH3

Option D NH2OH

Q. No. 65
0082065 A metal ion M3+ loses 3 electrons, its oxidation number will be

Option A 0
Option B +3
Option C -3
Option D +6

Correct Option D

Q. No. 66 The oxidation potentials of A and B are +2.37 V and 1.66 V respectively. In a chemical
0082066 reaction
Option A A will replace B

Option B A will be replaced by B
Option C A will not replace B
Option D A and B will not replace each other

Q. No. 67
The high density of water as compared to ice is due to
0082067
Option A Hydrogen bonding interactions
Option B Dipole- induced dipole interactions
Option C Dipole-diplole interactions

Option D Induced dipole- induced dipole interactions

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Q. No. 68
The stability of following alkali metal chlorides follows the order
0082068
Option A LiCl>KCl>NaCl>CsCl
Option B KCl>CsCl>NaCl>LiCl

Option C CsCl>KCl>NaCl>LiCl
Option D NaCl>KCl>LiCl>CsCl

Q. No. 69
The active constituent of bleaching powder is
0082069

Option A Ca(ClO2)2

Option B Ca(OCl)2

Option C Ca(OCl)Cl

Option D Ca(ClO2)Cl

Q. No. 70 On dissolving moderate amount of sodium metal in liquid NH3 at low temperature,
0082070 which one of the following does not occur

Option A Na+ ions are formed in the solution

Option B Blue coloured solution is formed
Option C Liquid ammonia becomes good conductor of electricity
Option D Liquid ammonia remains diamagnetic
Correct Option D

Q. No. 71
H3BO3 is
0082071
Option A Monobasic and weak Lewis acid
Option B Monobasic and Lewis acid

Option C Monobasic and weak Bronsted acid
Option D Tribasic and weak Bronsted acid

Q. No. 72
Which of the following molecular species has unpaired electrons
0082072

Option A F2

Option B N2

Option C O2-

Option D O22-

Q. No. 73
The most stable free radical among the following is
0082073

Option A C6H5CH2CH2

Option B CH3CHCH3

Option C CH3CH2

Option D C6H5CHCH3

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Correct Option D

Q. No. 74
0082074

Q. No. 75
0082075

Option A Pd/BaSO4
Option B Li/NH3
Option C LiAlH4
Option D Pt/H2

Q. No. 76
Which of the following is not a green house gas
0082076

Option A CO2

Option B N2

Option C CH4

Option D Chlorofluorocarbons

Q. No. 77
Salt bridge contains
0082077
Option A Calomel

Option B Agar-agar paste
Option C Corrosive sublimate

Option D H2O

Q. No. 78
0082078

Option A -0.30V
Option B +0.30 V
Option C +0.58 V

Option D -0.58 V

Q. No. 79
Which of the following can act as a protective colloid
0082079
Option A Silica gel

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Option B Oil-in-water emulsion

Option C Gelatin
Option D All of these

Q. No. 80
The ability of the catalyst to direct the reaction to yield particular product is called
0082080
Option A Fugacity
Option B Activity
Option C Reactivity

Option D Selectivity
Correct Option D

Q. No. 81
BCC type of structure is for
0082081
Option A CsCl

Option B NaCl
Option C Both a and b
Option D None of these

Q. No. 82 If radius ratio ( r+/r-) is in the range of 0.732 to 0.414 , then the coordination
0082082 number will be
Option A 6 and is octahedral

Option B 8 and is cubic
Option C 4 and is tetrahedral
Option D 3 and is triangular

Q. No. 83
0082083
Option A 2 times
Option B 20 times

Option C 28 times
Option D 14 times

Q. No. 84 What function of [X], plotted against time, will give a straight line for a second order
0082084 reaction

Option A [X]2
Option B [X]

Option C log [X]
Option D 1/[X]
Correct Option D

Q. No. 85
Which of the following is correct
0082085

Option A Order of a reaction is an experimentally determined quantity
Option B Order can be fractional or zero
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Option C Molecularity of a reaction can never be zero
Option D All of the above

Correct Option D

Q. No. 86
Which has maximum osmotic pressure at temperature T
0082086
Option A 300 ml of 1M glucose

Option B 100 ml of 1M urea solution
Option C Mixture of 100 ml of 1M urea solution and 300 ml of 1 M glucose solution
Option D All are isotonic
Correct Option D

Q. No. 87
When mercuric iodide is added to the aqueous solution of potassium iodide, then
0082087
Option A Freezing point is lowered
Option B Freezing point is raised
Option C Freezing point does not change

Option D None of the above

Q. No. 88
Colligative properties depend on the
0082088

Option A Concentration of solute particles in solution
Option B Identity of solute
Option C Both a and b
Option D None

Q. No. 89 Repeated use of which one of the following fertilizers would increase the acidity of
0082089 soil
Option A Potassium nitrate

Option B Urea
Option C Ammonium sulphate
Option D Superphosphate of lime

Q. No. 90
Interhalogen compounds can be
0082090

Option A BrF5

Option B BrCl5

Option C ICl3

Option D All are correct
Correct Option D

Q. No. 91
The ability of d- block elements to form complexes is due to
0082091
Option A Small and highly charged ions
Option B Vacant low energy orbitals to accept lone pair of electrons from ligands

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Option C Both are correct
Option D None is correct

Q. No. 92
Maximum oxidation state is shown by
0082092
Option A Fe
Option B Cr
Option C Co
Option D Os

Correct Option D

Q. No. 93 In SN1 Reaction, the intermediate formed is
0082093
Option A Carbanion

Option B Carbocation
Option C Free radical
Option D No intermediate is formed

Q. No. 94
Ethyl chloride is converted into diethyl ether by
0082094
Option A Grignard reagent
Option B Wurtz reaction

Option C Williamson's synthesis
Option D Haloform reaction

Q. No. 95
The reaction of phenol with chloroform in presence of sodium hydroxide is
0082095

Option A Reimer-Tiemann reaction
Option B Kolbe's reaction
Option C Claisen condensation
Option D Perkin reaction

Q. No. 96
Nitration of benzoic acid leads to the formation of
0082096

Correct Option D

Q. No. 97
Cyclohexanone can be converted into cyclohexane by
0082097

Option A NH2-NH2/KOH

Option B Zn-Hg/HCl

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Option C Dilute NaOH
Option D Both A and B
Correct Option D

Q. No. 98
Bakelite is obtained from
0082098
Option A Phenol and formaldehyde
Option B Urea and formaldehyde
Option C Adipic acid and phenol

Option D Ethylene glucol

Q. No. 99
The simplest amino acid is
0082099
Option A Tyrosine

Option B Alanine
Option C Glycine
Option D Asparagine

Q. No. 100
Narcotic analgesic is
0082100
Option A Paracetamol
Option B Aspirin

Option C Codeine
Option D Imetidine

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