Question for KEAM 2026 - Quiz / Questions / MCQ

Objective Questions

Latest KEAM Exam Question (Objective Questions), MCQ in English

Subjects : Mathematics, Physics, Chemistry

Question Bank KEAM Exam - English

Back to Exam

Physics

Question 1Single Answer

In ruby laser, the stimulated emission is due to transition from

A
metastable state to any lower state
B
any higher state of lower state
C
metastable state to ground state
D
any higher state to ground state

Question 2Single Answer

A direct current I flows along the length of an infinitely long straight thin walled pipe, then the magnetic field is

A
uniform throughout the pipe not zero
B
zero only along the axis of the pipe
C
zero at any point inside the pipe
D
maximum at the centre and minimum at the edge

Question 3Single Answer

convex lens made of glass has focal length 0.15m in air. If the refractive index of glass is 3/2, and that of water is 4/3 the focal length of lens when immersed in water is

A
0.45 m
B
0.15 m
C
0.30 m
D
0.6 m

Question 4Single Answer

Two sources are said to be coherent if they produce waves

A
having a constant phase difference
B
of equal wavelength
C
of equal speed
D
having same shape of wavefront

Question 5Single Answer

Three resistors 1 Ω, 2 Ω, 3Ω resistor a 3 V battery is connected. The current through 3 Ω resistor is -

A
0.75 A
B
1 A
C
2 A
D
1.5 A

Question 6Single Answer

In a common emitter amplifier the input signal is applied across

A
anywhere
B
emitter-collector
C
collector-base
D
base-emitter

Question 7Single Answer

Adding detergents to water helps in removing dirty greasy stains. This is because
1. It increases greasy stains. This is because
2. It decreases the oil-water surface tension
3. It increases the viscosity of the solution
4. Dirt is held suspended surrounded by detergent molecules

A
2 and 4
B
1 only
C
3 and 4
D
4 only

Question 8Single Answer

Choose the correct statement (a) for a cricket ball that is spinning clockwise through air
S1 : Statemlines of air are symmetric around the ball.
S2 : The velocity of air above the ball relative to it is larger than that below the ball.
S3 : The velocity of air above the ball relative to it is smaller than that below the ball.
S4 : There is a net upward force on the ball.

A
S1,S2 and S4
B
S2 and S4
C
S4 only
D
S3 only

Question 9Single Answer

Ferromagnetic materials used in a transformer must have

A
low permeability and high hysterisis loss
B
high permeability and low hysterisis loss
C
high permeability and high hysterisis loss
D
low permeability and low hysterisis loss

Question 10Single Answer

According to Newton’s corpuscular theory, the speed of light is

A
same in all the medium
B
lesser in rarer medium
C
lesser in denser medium
D
independent of the medium

Question 11Single Answer

For the constructive interference the path difference between the two interfering waves must be equal to

A
(2𝜋 + 1)λ
B
2n𝜋
C
nλ
D
n

Question 12Single Answer

The accurate measurement of emf can be obtained using

A
multimeter
B
voltmeter
C
voltameter
D
potentiometer

Question 13Single Answer

A person, with outstretched arms, is spinning on a rotating stool. He suddenly brings his arms down to his sides. Which the following is true about his kinetic energy K and angular momentum L?

A
Both K and L increase
B
Both K and L remain unchanged
C
K remains constant, L increases
D
K increases but L remains constant

Question 14Single Answer

Which of the following is not a thermodynamic coordinate?

A
Gas constant (R)
B
Pressure (p)
C
Volume (V)
D
Temperature (T)

Question 15Single Answer

An antenna uses electromagnetic waves of frequency 5 MHz . For proper working, the size of the antenna should be

A
300 m
B
3 km
C
15 m
D
15 km

Question 16Single Answer

The amount of energy released when one microgram of matter is annihilated is

A
25 kWh
B
9 x 10¹⁰ kWh
C
3 x 10¹⁰ kWh
D
0.5 x 10⁵ kWh

Question 17Single Answer

The number of significant figures in the numbers 4.8000 x 10⁴ 48000.50 are respectively

A
5 and 6
B
5 and 7
C
2 and 7
D
2 and 6

Question 18Single Answer

β-decay means emission of electron from

A
innermost electron orbit
B
a stable nucleus
C
outermost electron orbit
D
radioactive nucleus

Question 19Single Answer

An electric heater rated 220 V and 550 W is connected to AC mains. The current drawn by it is

A
0.8 A
B
2.5 A
C
0.4 A
D
1.25 A

Question 20Single Answer

A string is wound round the rim of a mounted flywheel of mass 20 kg and radius 20 cm. A steady pull of 25 N is applied on the cord. Neglecting friction and mass of the string, the angular acceleration of the wheel is

A
50 s^-2
B
25 s^-2
C
12.5 s^-2
D
6.25 s^-2

Question 21Single Answer

Temperature can be expressed as derived quantity in terms of

A
length and mass
B
mass and time
C
length, mass and time
D
None of these

Question 22Single Answer

Electron volt is a unit of

A
potential difference
B
charge
C
energy
D
capacity

Question 23Single Answer

Dimensions of impulse are

A
[MLT ^–1]
B
[MLT²]
C
[MT^–2]
D
[ML^–1T^–3]

Question 24Single Answer

Potential is measured in

A
joule/coulomb
B
watt/coulomb
C
newton–second
D
None of these

Question 25Single Answer

One Nanometer is equal to

A
10^–9m
B
10^–6m
C
10^–10m
D
10^–3m

Question 26Single Answer

Maxwell is the unit of

A
magnetic susceptibility
B
intensity of Magnetisation
C
magnetic Flux
D
magnetic Permeability

Question 27Single Answer

Which of the following is derived physical quantity ?

A
Mass
B
Velocity
C
Length
D
Time

Question 28Single Answer

What are the units of magnetic permeability ?

A
Wb A^–1 m^–1
B
Wb^–1 Am
C
Wb A m^–1
D
Wb A^–1 m

Question 29Single Answer

The dimensions of pressure gradient are

A
[ML^–2 T^–2]
B
[ML^–2 T^–1]
C
[ML^–1 T^–1]
D
[ML^–1 T^–2]

Question 30Single Answer

The dimensions of Rydberg's constant are

A
[M⁰L^–1T]
B
[MLT^–1]
C
[M⁰L^–1T⁰]
D
[ML⁰T²]

Question 31Single Answer

'Farad' is the unit of

A
resistance
B
conductance
C
capacitance
D
inductance

Question 32Single Answer

S.I. unit of surface tension is

A
degree/cm
B
N/m
C
N/m²
D
Nm

Question 33Single Answer

Which one of the following pairs does not have the same dimension ?

A
Potential energy and Kinetic energy
B
Density and specific gravity
C
Focal length and height
D
Gravitational force and frictional force

Question 34Single Answer

Which one of the following physical quantity has the same unit as that of pressure ?

A
Angular momentum
B
Stress
C
Strain
D
Work

Question 35Single Answer

The symbol of SI unit of inductance is H. It stands for

A
Holm
B
Halogen
C
Henry
D
Hertz

Question 36Single Answer

Light year is a measure of

A
time
B
distance
C
total amount of light falling on the Earth in a year
D
average intensity of light falling on the Earth in a year

Question 37Single Answer

Which one of the following is not a dimension less quantity ?

A
Strain
B
Relative density
C
Frequency
D
Angle

Question 38Single Answer

The dimensions of universal gas constant are

A
[L² M¹ T^–2 K^–1]
B
[L¹ M² T^–2 K^–1]
C
[L¹ M¹ T^–2 K^–1]
D
[L² M² T^–2 K^–1]

Question 39Single Answer

The dimensions of magnetic moment are

A
[L²A¹]
B
[L²A^–1]
C
[L²/A³]
D
[LA²]

Question 40Single Answer

The dimensions of Wien's constant are

A
[ML⁰TK]
B
[M⁰LT⁰K]
C
[M⁰L⁰TK]
D
[MLTK]

Question 41Single Answer

The dimensional formula of wave number is

A
[M⁰L⁰T^–1]
B
[M⁰L^–1T⁰]
C
[M^–1 L^–1 T⁰]
D
[M⁰ L⁰ T⁰]

Question 42Single Answer

The dimensional of Hubble ‘s wave number is

A
[T^–1]
B
[M⁰L⁰T^–2]
C
[MLT⁴]
D
[MT^–1]

Question 43Single Answer

The dimensions of solar constant is

A
[M⁰L⁰T⁰]
B
[MLT^–2]
C
[ML²T^–2]
D
MT^–3

Question 44Single Answer

The dimensional formula for entropy is

A
[MLT^–2K¹]
B
[ML² T^-2]
C
[ML²T^–2K^–1]
D
[ML²T^–2K]

Question 45Single Answer

Dimension of specific heat are

A
[ML² T^–2 K]
B
[ML² T^–2 K^–1]
C
[ML²T²K^–1]
D
[L²T^–2K^–2]

Mathematics

Question 46Single Answer

The elements of the set {x : x is an integer, x² : 4} can be represent as .....Z..... . Here, Z refers to

A
{–2, 2}
B
{–1, 0, 1}
C
{–2, –1, 0, 1, 2}
D
{0, 1, 2}

Question 47Single Answer

A
B
C
D
None of these

Question 48Single Answer

If Y = {x : x is a positive factor of the number 2p – 1(2p – 1), where 2p – 1 is a prime number}, then Y can be represent in roster form as

A
{2}
B
{1, 2}
C
{1, 2, 22, ....., 2p – 1}
D
{1, 2, 22, 23,.... 2p – 1, (2p – 1)}

Question 49Single Answer

The set {x : x is a positive integer less than 6 and 3x – 1 is an even number} in roster form is

A
{1, 2, 3, 4, 5}
B
{1, 2, 3, 4, 5, 6}
C
{2, 4, 6}
D
{1, 3, 5}

Question 50Single Answer

If A

B and A

B, then

A
A is called a proper subset of B
B
A is called a super set of B
C
A is not a subset of B
D
B is a subset of A

Important Questions Package

KEAM Exam Online Question Bank Package

Buy KEAM Important Questions, MCQ, question answer in Hindi & English. It will help you to score high marks in KEAM question bank 2026 in Online, PDF & Print study material.

+ Free Monthly Current Affairs, GK & more PDF Download

Sr.	Package Name	Amount
1.	KEAM Exam - English Description : 1000 Question with Answer.	₹101 ~~[₹500]~~
2.	KEAM Exam - English Description : 2000 Question with Answer.	₹151 ~~[₹500]~~
3.	KEAM Exam - English Description : 3000 Question with Answer.	₹181 ~~[₹500]~~

Mathematics

Question 51Single Answer

The number of non-empty subsets of the set{1, 2, 3, 4} is

A
15
B
14
C
16
D
17

Question 52Single Answer

The number of elements of the power set of a set containing m elements is

A
2^m – 1
B
m
C
m²
D
2^m

Question 53Single Answer

If A = {x : x = n², n = 1, 2, 3}, then number of proper subsets is

A
3
B
8
C
7
D
None of these

Question 54Single Answer

If A = {x : x = 4n + 1, 2 £ n £ 5},then number of subsets of A is

A
16
B
15
C
4
D
None of these

Question 55Single Answer

Let A and B be two non-empty subsets of a set X such that A is not a subset of B, then

A
A is always a subset of the complement of B
B
B is always a subset of A
C
A and B are always disjoint
D
A and the complement of B are always non-disjoint

Question 56Single Answer

Which of the following is/are empty set?
A = {x : x2 + x + 1 = 0 and x Î Z} B = {x : x is a prime number and 19 < x < 23}

A
A
B
B
C
Both A and B
D
None of the above

Question 57Single Answer

The set {x : x⁴ = 1 and x

R} is .....X.... set. Here, X refers to

A
empty
B
finite
C
infinite
D
singleton

Question 58Single Answer

The universal set for the sets
A = {x : x² – 5x + 6 = 0} and
B = {x : x² – 3x + 2 = 0} having least number of elements is

A
{1, 2}
B
{1, 3}
C
{1, 2, 3}
D
{0, 1, 2, 3}

Question 59Single Answer

If A = {1, 2, 3}, B = {x € R : x2 – 2x + 1 = 0},

C = {1, 2, 2, 3} and

D = {x € R : x3 – 6x2 + 11x – 6 = 0}, then the equal sets are

A
A and B
B
A and C
C
A, B and C
D
A, C and D

Question 60Single Answer

If A = (–3, 5) and B = [–7, 9], then

A
A = B
B
A B
C
B A
D
None of these

Question 61Single Answer

Two finite sets have m and n elements, respectively. The total number of subsets of first set is 56 more than the total number of subsets of the second set. The value of m and n respectively are

A
7, 6
B
5, 1
C
6, 3
D
8, 7

Question 62Single Answer

Combine terms: 12a + 26b - 4b – 16a .

A
4a + 22b
B
-28a + 30b
C
-4a + 22b
D
28a + 30b

Question 63Single Answer

The average of first 50 natural numbers is ………… .

A
25.30
B
25.5
C
25.00
D
12.25

Question 64Single Answer

60 Times of 8 Equals to

A
480
B
300
C
250
D
400

Question 65Single Answer

Consider the sets

A = {x : x is a real number and x² + 1 = 0}

B = {x : x is a real number and x² – 16 = 0}

C = {x : x is a real number and x² = x + 2}

Which of the following is are null set ?

A
A
B
A and B
C
A and C
D
A, B and C

Question 66Single Answer

If X = {4n – 3n – 1: n Î N} and Y = {9(n – 1): n Î N}; where N is the set of natural numbers, then X È Y is equal to

A
N
B
Y – X
C
X
D
Y

Question 67Single Answer

Which of the following is / are correct?

I. {2, 3, 4} {1, 2, 3, 4, 5}

II. {a, b, c} {b, c, d}

III. {x : x is an equilateral triangle in a plane} Ì {x : x is a triangle in the same plane}

IV. {x : x is an even natural number} {x : x is an integer}

A
I and III are correct
B
II and III are correct
C
Only IV is correct
D
All above are correct

Question 68Single Answer

Question 69Single Answer

Consider the following statements :
1. The set of all irrational numbers between √2 and √5 is an infinite set .
2. The set of all odd integers less than 100 is a finite set .
Which of the statements given above is/are correct ?

A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2

Question 70Single Answer

What is the Next Prime Number after 7 ?

A
13
B
12
C
14
D
11

Question 71Single Answer

If A and B are two given sets, then A

B)^C is equal to

Question 72Single Answer

121 Divided by 11 is

A
11
B
10
C
19
D
18

Question 73Single Answer

Let X be the universal set for sets A and B, if n(A) = 200, n(B) = 300 and n

= 100, then n

is equal to 300 provided n(X) is equal to

A
600
B
700
C
800
D
900

Question 74Single Answer

A
{3, 4, 10}
B
{2, 8, 10}
C
{4, 5, 6}
D
{3, 5, 14}

Question 75Single Answer

Let A = {x : x is a prime factor of 240} B = {x : x is the sum of any two prime factors of 240}, then

Question 76Single Answer

If A = {x : x is a multiple of 4 and x

N} and B = {x : x is a multiple of 6 and x

N}, then A

B consists of all multiples of

A
16
B
12
C
8
D
4

Question 77Single Answer

A
A = B
B
B = C
C
A = C
D
None of these

Question 78Single Answer

A
equal
B
disjoint
C
either equal or disjoint
D
none of the above

Question 79Single Answer

A
{–i, i}
B
{–1, 1}
C
{–1, 1, i, –i}
D
None of these

Question 80Single Answer

If A = {x : f(x)= 0} and
B = {x : g(x) = 0}, then A

B will be

A
[f(x)]2 + [g(x)]2 = 0
B
C
D
None of the above

Question 81Single Answer

In a group of 400 people, 250 can speak Hindi and 200 can speak English. Then, people who can speak both Hindi and English are

A
60
B
80
C
50
D
45

Question 82Single Answer

20 teachers of a school either teach Mathematics or Physics. 12 of them teach Mathematics while 4 teach both the subjects. The number of teacher teaching Physics only, is

A
12
B
8
C
16
D
20

Question 83Single Answer

In a class of 100 students, 70 have taken Science, 60 have taken Mathematics, 40 have taken both Science and Mathematics. The number of students who have not taken Science or Mathematics or both Science and Mathematics, is equal to

A
90
B
10
C
30
D
20

Question 84Single Answer

A market research group conducted a survey of 1000 consumers and reported that 720 consumers like product A and 450 consumers like the product B, then least number that must have like both products, is

A
730
B
170
C
180
D
1270

Question 85Single Answer

If there are three athletic teams in a school, 21 are in the basketball team, 26 in hockey team and 29 in the football team. 14 play hockey and basketball, 15 play hockey and football, 12 play football and basketball and 8 play all the games. The total number of members is

A
42
B
43
C
45
D
None of these

Question 86Single Answer

In a college

part girls and

part boys attended a social camp. How many parts in the collegs students attended the camp ?

A
B
C
D
E
None of the above

Question 87Single Answer

The sum of two number is 16 and their difference is 2. What is the product to both numbers ?

A
35
B
56
C
56
D
72

Question 88Single Answer

What are the positive factors of 160 .

A
6
B
8
C
5
D
12

Question 89Single Answer

What is the value of (51 + 52 + 53 ........100) ?

A
1325
B
5050
C
3775
D
3325

Question 90Single Answer

What is the sum of all natural numbers that come in the between 1 to 100, which a multiple of 7 ?

A
735
B
745
C
675
D
705

Question 91Single Answer

What is the unit digit of 279 + 167 × 342 ?

Question 92Single Answer

Which of the given values is completely divisible by 15 ?

A
2365
B
1375
C
4365
D
2275

Question 93Single Answer

For which value of M, the divisor 34M fully divisible by 12 ?

Question 94Single Answer

If 432p1 is completely divisiable 34M fully divisiable by 12 ?

Question 95Single Answer

Which is the smallest number to be added to 100, so that the resulting number is completely divisible by 6 ?

Question 96Single Answer

When a number is divided by 80, the remainded is 20. When the same number is divided by 16, what will be the remainder ?

Question 97Single Answer

Which of the fractions is the largest among

and

A
B
C
D
All are equal

Question 98Single Answer

What is the two digits largest prime number ?

A
91
B
93
C
97
D
99

Question 99Single Answer

What is the sum of first 15 odd natural numbers ?

A
255
B
225
C
235
D
215

Question 100Single Answer

What will be the sum of all natural numbers from 75 to 97 ?

A
1598
B
1978
C
1798
D
1958

Question 101Single Answer

If the quotient

of is positive, which of the following would be true ?

A
a > 0
B
b > 0
C
ab > 0
D
a + b > 0

Question 102Single Answer

If the last two digits of a three-digit number is multiple of 6, then the original integer will always be divisible by ?

A
6
B
3
C
2
D
12

Question 103Single Answer

Find three consecutive numbers, in which sum of the two times of the first, three of second and four time of the third number os 191 ?

A
19, 20, 21
B
21, 22, 23
C
20, 21, 22
D
22, 23, 24

Question 104Single Answer

An office has 108 table and 132 chairs. If

tables and

of the chairs are broken, then how many people can work in the office, if required 1 table and 1 chair ?

A
86
B
90
C
90
D
99

Question 105Single Answer

If the sum of two numbers is a and the product is b, then what will be the sum of their reciprocal ?

Question 106Single Answer

The sum of all prime numbers not greater than 17 is ?

A
59
B
58
C
41
D
42

Question 107Single Answer

What is the decimal fraction of 2.349 ?

Question 108Single Answer

Which of the following number is divisible by 9 ?

A
45699
B
12381
C
45696
D
12348

Question 109Single Answer

The largest 4 - digit number is X, which is divisible by 18, 15 and 12 . Then the value of X will be ?

A
9989
B
9980
C
9999
D
9900

Question 110Single Answer

The sum of two numbers is 20 and the product is 91 . What should be the sum of their reciprocal ?

Question 111Single Answer

Find the smallest 6 digit number which is multiple of 18 ?

A
100000
B
999900
C
100008
D
100006

Question 112Single Answer

The sum of a fraction and its reciprocal

is the fractions is ?

Question 113Single Answer

The sum of digits of a twodigit number is 9 . By subtracting 27 from number, the digits of the number are interchanged, so what is that number ?

A
72
B
63
C
45
D
None of these

Question 114Single Answer

The product of two positive numbers is 2500. If one of these numbers is four times more than the other, then what will be the sum of these two numbers ?

A
25
B
125
C
225
D
None of these

Question 115Single Answer

A studednt were asked to divide a number by 3, but instead of dividing it, multiplied that number by 3, so that he got 29.7 as the result, what would be the correct result ?

A
3.3
B
3.9
C
9.9
D
None of these

Question 116Single Answer

The sum of two times of a number and three times its reciprocal is

What is that number ?

Question 117Single Answer

A number is greater than three times of its reciprocal by

What is that number ?

A
10
B
11
C
9
D
8

Question 118Single Answer

Which of the following numbers is completely divisible by 99 ?

A
57717
B
57625
C
55162
D
56982

Question 119Single Answer

One dividing a number by 38, we get 90 as the quotient and 19 as the remainder . What is that number ?

A
3401
B
3382
C
3458
D
3439

Question 120Single Answer

If the number 583_437 is completely divisible by 9, what will be the minimum integer in the blank space ?

Chemistry

Question 121Single Answer

10^-6 M NaOH is diluted 100 times. The pH of the diluted base is

A
between 7 and 8
B
between 5 and 6
C
between 6 and 7
D
between 10 and 11

Question 122Single Answer

In the electrolysis of acidulated water, it is desired to obtain 1.12 cc of hydrogen per second under STP condition. The current to be passed is

A
1.93 A
B
9.65 A
C
19.3 A
D
0.965 A

Question 123Single Answer

The one which decreases with dilution is

A
molar conductance
B
conductance
C
specific conductance
D
equivalent conductance

Question 124Single Answer

Vapour pressure of pure ‘A’ is 70 mm of Hg at 25^oC. It forms an ideal solution with ‘B’ in which mole fraction of A is 0.8. if the vapour pressure of the solution is 84 mm of Hg at 25^oC, the vapour pressure of pure ‘B’ at 25^oC is

A
28 mm
B
56 mm
C
70 mm
D
140 mm

Question 125Single Answer

A 6% solution of urea is isotonic with

A
1 M solution of glucose
B
0.05 M solution of glucose
C
6% solution of glucose
D
25% solution of glucose

Question 126Single Answer

In countries nearer to polar region, the roads are sprinkled with CaCl₂. This is

A
to minimise the wear and tear of the roads
B
to minimise the snow fall
C
to minimise pollution
D
to minimise the accumulation of dust on the road

Question 127Single Answer

A compound of ‘A’ and ‘B’ crystallises in a cubic lattice in which ‘A’ atoms occupy the lattice points at the corners of the cube. The ‘B’ atoms occupy the centre of each face of the cube. The probable empirical formula of the compound is

A
AB₂
B
A₂B
C
AB
D
AB₃

Question 128Single Answer

In electrophilic aromatic substitution reaction, the nitro group is meta directing because it

A
decreases electron density at ortho and para positions
B
decreases electron density at meta position
C
increases electron density at meta position
D
increases electron density at ortho and para position

Question 129Single Answer

The best method for the conversion of an alcohol into an alkyl chloride is by treating the alcohol with

A
PCI₅
B
PCI₃
C
SOCl₂ in presence of pyridine
D
dry HCl in the presence of anhydrous ZnCl₂

Question 130Single Answer

The carbon bond length in benzene is

A
in between C₂H₆ and C₂H₄
B
same as in C₂H₄
C
in between C₂H₆ and C₂H₂
D
in between C₂H₄ and C₂H₂

Question 131Single Answer

Which of the following is not a synthetic fibre:

A
Anygora
B
Rayon
C
Nylon
D
Polyster

Question 132Single Answer

Which one of the following is not contained in Portland cement ?

A
Ca₃Al₂O₆
B
Ca₃SiO₅
C
Ca₂SiO₄
D
Ca₃(PO₄)₂

Question 133Single Answer

What is the reson for white cement to be white ?

A
It does not contain carbon
B
It does not contain silicon
C
It does not contain iron
D
It does not contain calcium

Question 134Single Answer

Which fertilizer is assimilated directly by the plant ?

A
Super phosphate
B
Nitrolim
C
Muriate of Potash
D
Humus

Question 135Single Answer

Which of the following chemicals is used in foam fire extinguishers ?

A
Aluminium sulphate
B
Copper sulphate
C
Cobalt sulphate
D
Nickel sulphate

Question 136Single Answer

What is a mixture of potassium nitrate, powdered charcoal and sulphur called ?

A
Glass
B
Cement
C
paint
D
Gun powder

Question 137Single Answer

Which one of the following chemicals is used in beauty parlours for hair – setting ?

A
Sulphur based
B
Phosphorus based
C
Silicon based
D
Iron based

Question 138Single Answer

Which one of the following is used as a mordant in dyeing and tanning industry ?

A
Magnesium oxide
B
Magnesium carbonate
C
Magnesium chloride
D
Magnesium sulphate

Question 139Single Answer

Which one of the following substances is used in the manufacture of safety matches ?

A
Red phosphorus
B
White phosphorus
C
Phosphorus trioxide (P₂O₃)
D
Black phosphorus

Question 140Single Answer

Which one of the following polymeric materials is used for making bullet proof jacket ?

A
Nylon –6, 6
B
Rayon
C
Kevlar
D
Dacron

Question 141Single Answer

Which one of the following is another name of RDX

A
Cyanohydrin
B
Dextran
C
Cyclohexane
D
Cyclonite

Question 142Single Answer

Which one of the following is used as an explosive ?

A
Phosphorus trichloride
B
Mercuric oxide
C
Graphite
D
Nitroglycerine

Question 143Single Answer

Flint glass is obtained from which of the following ?

A
Zinc and barium borosilicate
B
Sand, red lead and potassium carbonate
C
Sodium aluminium borosilicate
D
Pure silica and zinc oxide

Question 144Single Answer

Which one of the following correctly defines the state of glass ?

A
Crystalline solid
B
Super cooled liquid
C
Condensed gas
D
Liquid crystal

Question 145Single Answer

Which one of the following is not used as fertilizer ?

A
Ammonium nitrate
B
Ammonium sulphide
C
Ammonium phosphate
D
Ammonium sulphate

Question 146Single Answer

Which one of the following elements is needed in the human body to transfer electrical signals by nerve cells ?

A
Lithium
B
Sodium
C
Rubidium
D
Caesium

Question 147Single Answer

Which one of the following is NOT true for bleaching powder ?

A
It is used as a reducing agent in chemical industries
B
It is used for bleaching wood pup in paper factories
C
It is used for disinfecting drinking water
D
It is used for bleaching linen in textile industry

Question 148Single Answer

Hard glass having the same ingredientsas soft glass excepts.

A
hard glass have Na in place of K
B
hard glass having K in place of Na
C
hard glass having both Na and K
D
None of the above

Question 149Single Answer

A complete fertilizer provides

A
N,P, K
B
S, K, N
C
S, B, K
D
N, S, P

Question 150Single Answer

Antacids are commonly used to get rid of acidity in the Stomach. A commonly used antacid is.

A
sodium hydrogen phthalate
B
magnesium hydroxide
C
calcium hydroxide
D
manganese acetate

Back to Exam

Latest KEAM Exam Question (Objective Questions), MCQ in English

Physics

Mathematics

KEAM Exam Online Question Bank Package

Mathematics

Chemistry

Quick View