Air Pollution — Important Questions
Telangana Open School (TOSS) · Class 12 · Chemistry
50 important questions from Air Pollution for Telangana Open School (TOSS) Class 12 Chemistry, with answers. Written for the board exams 2027.
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Important Questions from Air Pollution
Which layer of the atmosphere contains the ozone layer?
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Stratosphere
The stratosphere contains a high concentration of ozone, which absorbs harmful UV radiation.
What is the main cause of acid rain?
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Release of SO₂ and NOx
Sulphur dioxide (SO₂) and nitrogen oxides (NOx) react with water vapour to form sulphuric and nitric acids, causing acid rain.
Which pollutant is responsible for the formation of photochemical smog?
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NOx and hydrocarbons
Nitrogen oxides and hydrocarbons react under sunlight to form photochemical smog, including ozone and PAN.
Which gas is primarily responsible for the greenhouse effect?
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Carbon dioxide
Carbon dioxide traps heat in the atmosphere and is a major greenhouse gas contributing to global warming.
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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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