Question 1.
Global warming may result in
A. Flood
B. Cyclone
C. Decrease in forest productivity
D. All of the above
Ans: D. All of the above
Question 2.
Which gas does not form the part of atmosphere ?
A. Nitrogen
B. Helium
C. Chlorine
D. None of the above
Ans: C. Chlorine
Question 3.
The increasing abundance of green house gases in atmosphere has led to the following effect except
A. Global warming
B. Depletion of ozone layer in the stratosphere
C. Oxygen fertilization effect
D. Carbon dioxide ferilization effect
Ans: C. Oxygen fertilization effect
Question 4.
Periodic table contains how many periods
A. 6
B. 7
C. 8
D. 10
Ans: C. 8
Question 5.
Oxygen which is vital for life is a product of photosynthesis and comes from
A. Carbonates from soil
B. Carbon dioxide
C. Water
D. Oxides of mineral elements
Ans: C. Water
Question 6.
Which one of the following statement is correct ?
Ozone is found in the earth’s atmosphere mostly between
A. 5 and 10 km
B. 10 and 20 km
C. 20 and 50 km
D. 50 and 100 km
Ans: C. 20 and 50 km
Question 7.
The source of energy that causes the least global warming is
A. Coal
B. Geothermal energy
C. Natural Gas
D. Petroleum
Ans: B. Geothermal energy
Question 8.
the lightest element in the periodic table
A. Hydrogen
B. Helium
C. Oxygen
D. Carbon
Ans: A. Hydrogen
Question 9.
Which one of the following is a greenhouse gas ?
A. Nitrogen
B. Helium
C. Carbon dioxide
D. Sulphur dioxide
Ans: C. Carbon dioxide
Question 10.
Which one of the following is not a ‘green house gas’ ?
A. Chlorofluorocarbons
B. Methane
C. Carbon dioxide
D. Nitrogen
Ans: D. Nitrogen
Question 11.
Which of the following fuels causes minimum environmental pollution?
A. Diesel
B. Kerosene
C. Hydrogen
D. Coal
Ans: C. Hydrogen
Question 12.
Which one of the following is most electronegative?
A. Carbon
B. Silicon
C. Lead
D. Tin
Ans: A. Carbon
Question 13.
Acid rain is caused by the pollution of environment by
A. Carbon monoxide and Carbon dioxide
B. Ozone and Carbon dioxide
C. Nitrous oxide and Sulphur dioxide
D. Carbon dioxide and Nitrogen
Ans: C. Nitrous oxide and Sulphur dioxide
Question 14.
Green house effect is accelerated by
A. Deforestation
B. Rapid industrialization
C.Increased transportation activity
D. All of these
Ans: D. All of these
Question 15.
Biofertilizers convert nitrogen to __ .
A. Nitrates
B. Ammonia
C. Nitrogenase
D. Amino acids
Ans: B. Ammonia
Question 16.
Periodic table contains how many groups
A. 16
B. 17
C. 18
D. 19
Ans: C. 18
Question 17.
The ‘Green House effect’ is produced due to the presence of excess amount of
A. Sulphur dioxide
B. Nitrogen dioxide
C. Carbon monoxide
D. Methane
Ans: D. Methane
Question 18.
Smoke is formed due to
A. Solid dispersed in gas
B. Solid dispresed in liquid
C. Gas dispresed in solid
D. Gas dispersed in gas
Ans: A. Solid dispersed in gas
Question 19.
The elements in the modern Periodic table are arranged according to their
A. Mass number
B. Neutron number
C. Atomic number
D. Atomic Weight
Ans: C. Atomic number
Question 20.
Total number of elements in the Periodic table
A. 112
B. 115
C. 118
D. 127
Ans: C. 118
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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