Question 1.
Sea water can be purified by the process of
A. Distillation
B.Evaporation
C. Filtration
D. Fractional distillation
Ans: A. Distillation
Question 2.
Element 106 was discovered by
A. Rutherford
B. Seaborg
C. Lawrence
D. Kurchatove
Ans: B. Seaborg
Question 3.
Which of the following is not a noble gas ?
A. Hydrogen
B. Helium
C. Neon
D. Argon
Ans: A. Hydrogen
Question 4.
Which among the following metals provides amphoteric oxide ?
A. Sodium
B. Silver
C. Aluminium
D. Calcium
Ans: C. Aluminium
Question 5.
A mixture of water and alcohol can be separated by
A. Filtration
B. Evaporation
C. Decantation
D. Distillation
Ans: D. Distillation
Question 6.
The gas used for filling weather balloons is
A. Helium
B. Hydrogen
C. Air
D. Nitrogen
Ans: A. Helium
Question 7.
Milk is a
A. Mixture
B. Element
C. Metal
D. None of these
Ans: A. Mixture
Question 8.
Impure camphor is purified by
A. Sublimation
B. Fractional crystallisation
C. Fractional distillation
D. Steam distillation
Ans: A. Sublimation
Question 9.
Which one is a naturally occuring noble gas?
A. Sodium
B. Potassium
C. Argon
D. Boron
Ans: C. Argon
Question 10.
The most abundant element is
A. Calcium
B. Silicon
C. Oxygen
D. Nitrogen
Ans: C. Oxygen
Question 11.
Mixture can be
A. Homogeneous
B. Heterogeneous
C. Both A and B
D. Pure substance
Ans: C. Both A and B
Question 12.
Iron filings can be separated from a heterogeneous mixture using the technique of :
A. Sublimation
B. Magnetization
C. Sedimentation
D. Evaporation
Ans: B. Magnetization
Question 13.
Total number of naturally occurring elements
A. 62
B. 92
C. 98
D. 110
Ans: B. 92
Question 14.
A balloon filled with helium rises in air because
A. Air exerts an upward force on the balloon
B. The balloon is weightless
C. Helium is less dense than air
D. Helium pushes down on the air below the balloon
Ans: C. Helium is less dense than air
Question 15.
Which one out of the following helps in burning ?
A. Oxygen
B. Carbon monoxide
C. Nitrogen
D. Carbon dioxide
Ans: A. Oxygen
Question 16.
Electric bulbs are filled with :
A. Nitrogen
B. Carbon dioxide
C. Argon
D. Oxygen
Ans: C. Argon
Question 17.
The coloured discharge tubes for advertisement mainly contain
A. Xenon
B. Argon
C. Helium
D. Neon
Ans: D. Neon
Question 18.
Which one of the following is also known as solution ?
A. A compound
B. A homogeneous mixture
C. A heterogeneous mixture
D. A suspension
Ans: B. A homogeneous mixture
Question 19.
Except mercury which is the other metal that is liquid at standard conditions for temperature and pressure?
A. Lead
B. Bromine
C. Barium
D. Magnesium
Ans: B. Bromine
Question 20.
The most abundant inert gas in the atmosphere is
A. Helium
B. Neon
C. Argon
D. Krypton
Ans: C. Argon
Chemistry GK MCQs all set
- Chemistry GK MCQs Set-1
- Chemistry GK MCQs Set-2
- Chemistry GK MCQs Set-3
- Chemistry GK MCQs Set-4
- Chemistry GK MCQs Set-5
- Chemistry GK MCQs Set-6
- Chemistry GK MCQs Set-7
- Chemistry GK MCQs Set-8
- Chemistry GK MCQs Set-9
- Chemistry GK MCQs Set-10
- Chemistry GK MCQs Set-11
- Chemistry GK MCQs Set-12
- Chemistry GK MCQs Set-13
- Chemistry GK MCQs Set-14
- Chemistry GK MCQs Set-15
- Chemistry GK MCQs Set-16
- Chemistry GK MCQs Set-17
- Chemistry GK MCQs Set-18
- Chemistry GK MCQs Set-19
- Chemistry GK MCQs Set-20
- Chemistry GK MCQs Set-21
- Chemistry GK MCQs Set-22
- Chemistry GK MCQs Set-23
- Chemistry GK MCQs Set-24
- Chemistry GK MCQs Set-25
- Chemistry GK MCQs Set-26
- Chemistry GK MCQs Set-27
- Chemistry GK MCQs Set-28
- Chemistry GK MCQs Set-29
- Chemistry GK MCQs Set-30
- Chemistry GK MCQs Set-31
- Chemistry GK MCQs Set-32
- Chemistry GK MCQs Set-33
- Chemistry GK MCQs Set-34
- Chemistry GK MCQs Set-35
- Chemistry GK MCQs Set-36
- Chemistry GK MCQs Set-37
- Chemistry GK MCQs Set-38
- Chemistry GK MCQs Set-39
- Chemistry GK MCQs Set-40
- Chemistry GK MCQs Set-41
- Chemistry GK MCQs Set-42
- Chemistry GK MCQs Set-43
- Chemistry GK MCQs Set-44
- Chemistry GK MCQs Set-45
- Chemistry GK MCQs Set-46
- Chemistry GK MCQs Set-47
- Chemistry GK MCQs Set-48
- Chemistry GK MCQs Set-49
- Chemistry GK MCQs Set-50
- Chemistry GK MCQs Set-51
- Chemistry GK MCQs Set-52
- Chemistry GK MCQs Set-53
- Chemistry GK MCQs Set-54
- Chemistry GK MCQs Set-55
- Chemistry GK MCQs Set-56
- Chemistry GK MCQs Set-57
- Chemistry GK MCQs Set-58
- Chemistry GK MCQs Set-59
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