Class 10 Chemistry MCQs - Chapter 6

Environmental Chemistry I Atmosphere Quiz Answers PDF Download - 11

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Class 10 Chemistry: Environmental Chemistry I Atmosphere Quiz Questions PDF Download

MCQ: Which of the following makes up most of the air?

A) nitrogen

B) oxygen

C) carbon dioxide

D) helium

MCQ: Which of the following is true about nitric oxide?

A) it is colorless

B) it has an irritating odor

C) it is not toxic

D) it is not harmful

MCQ: Presence of which of the following can be felt near the photocopier, television set, microwave oven, etc.?

A) chlorofluorocarbons (chlorofluorocarbons (CFCs))

B) methane

C) ozone

D) lead compounds

MCQ: The extension of troposphere above the Earth's surface is

A) 12 km

B) 50 km

C) 80 km

D) 70 km

MCQ: The energy of sunlight is converted into heat by

A) oxygen only

B) nitrogen only

C) hydrogen

D) oxygen and nitrogen

Practice MCQs: Class 10 Chemistry Mock Tests

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