Class 9 Chemistry · Chapter 10 · Test 2

Air Pollutant Sources

25 MCQs covering the major air pollutants their sources classification as NOx and SOx particulate matter ozone formation and the harmful effects of pollutants on human health and the environment.

MCQs

25 questions · 20 min · 25 marks

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Sample questions

The first 5 of 25. Try each one, then tap to see the answer.

Question 1
Which of the following is a major air pollutant
- ACarbon dioxide
- BOxygen
- CHydrogen
- DHelium
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Answer: A
Carbon dioxide is one of the seven major air pollutants listed in the chapter.
Question 2
Which gas is represented by the formula CO
- ACarbon monoxide
- BCarbon dioxide
- COxygen
- DNitrogen
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Answer: A
CO is the chemical formula for carbon monoxide.
Question 3
Which gas is represented by the formula CO2
- ACarbon dioxide
- BCarbon monoxide
- COzone
- DMethane
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Answer: A
CO2 is the chemical formula for carbon dioxide.
Question 4
Which substances are collectively referred to as NOx
- AOxides of nitrogen
- BOxides of sulphur
- CHydrocarbons
- DParticulate matter
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Answer: A
NO and NO2 are collectively referred to as NOx.
Question 5
Which substances are collectively referred to as SOx
- AOxides of sulphur
- BOxides of nitrogen
- CHydrocarbons
- DOzone
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Answer: A
SO2 and SO3 are collectively referred to as SOx.

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