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Atmospheric Pollution CHEMISTRY - Atmospheric Pollution

ICSE - STD 9 - CHEMISTRY (ICSE - English Medium). 70 questions in this chapter.

Question types

Atmospheric Pollution question types

70 questions across 6 question groups — pick any mix to generate a CHEMISTRY paper with step-by-step answer keys.

70
Questions
6
Question groups
5
Question types
Sample Questions

Atmospheric Pollution questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1MCQ1 Mark
A decrease in the amount of ozone in the stratosphere is called depletion of the zone and it is caused by
  • A
    UV radiations of sun
  • ✓
    Use of CFC compounds
  • C
    excessive use of detergents
  • D
    Use of polychlorinated biphenyls

Answer: B.

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Q 2MCQ1 Mark
Inhalation of air polluted with carbon monoxide is dangerous because:
  • A
    CO combines with $O_2$ dissolved in the blood.
  • ✓
    CO combines with hemoglobin of blood.
  • C
    CO removes water from the body and causes dehydration.
  • D
    CO causes coagulation of proteins in the body

Answer: B.

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Q 3MCQ1 Mark
Excessive release of carbon dioxide in the atmosphere is the cause of
  • A
    Depletion of ozone
  • B
    formation of polar vertex
  • ✓
    global warming
  • D
    formation of smog

Answer: C.

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