Download App

CHEMISTRY MCQ

Atmospheric Pollution · ICSE STD 9 (ICSE - English Medium). 3 questions.

Questions

MCQ

🎯

Test yourself on this topic

3 questions · timed · auto-graded

MCQ 11 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
Correct option: B.
Use of CFC compounds
Use of CFC compounds
View full question & answer→
MCQ 21 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
Correct option: B.
CO combines with hemoglobin of blood.
CO combines with hemoglobin of blood.
View full question & answer→
MCQ 31 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
Correct option: C.
global warming
View full question & answer→
Generate Paper FreeAll Atmospheric Pollution topics
MCQ - CHEMISTRY STD 9 Questions - Vidyadip