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MCQs

Total Questions : 360 | Page 2 of 36 pages
Question 11. Which of the following gases has the highest affinity for blood haemoglobin?
  1.    Carbon dioxide
  2.    Oxygen
  3.    Carbon monoxide
  4.    Nitrogen
 Discuss Question
Answer: Option C. -> Carbon monoxide
Answer: (c).Carbon monoxide
Question 12. Pesticides also contribute to air pollution along with polluting underground reservoirs.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 13. Which is the largest source for production of nitrous oxide?
  1.    Chemical industry
  2.    Fertiliser industry
  3.    Fossil fuel combustion
  4.    Bacterial action
 Discuss Question
Answer: Option D. -> Bacterial action
Answer: (d).Bacterial action
Question 14. Which is the major source for sulphur dioxide?
  1.    Volcanic eruptions
  2.    Coal and crude oil combustion
  3.    Burning of petrol
  4.    Sewage treatment process
 Discuss Question
Answer: Option B. -> Coal and crude oil combustion
Answer: (b).Coal and crude oil combustion
Question 15. At what concentration can the taste and smell of sulphur dioxide be detected?
  1.    1000-2000ppm
  2.    11-30ppm
  3.    500-700ppm
  4.    0.1-0.3ppm
 Discuss Question
Answer: Option D. -> 0.1-0.3ppm
Answer: (d).0.1-0.3ppm
Question 16. Which of the following leads to a disease called broncho spasm?
  1.    SO₂
  2.    SO₃
  3.    SO₄
  4.    CO₂
 Discuss Question
Answer: Option B. -> SO₃
Answer: (b).SO₃
Question 17. Which of the following is a secondary air pollutant?
  1.    SPM
  2.    PAN
  3.    SO₂
  4.    NO₂
 Discuss Question
Answer: Option B. -> PAN
Answer: (b).PAN
Question 18. Which of the following is not a part of photochemical smog?
  1.    NO₂
  2.    O₃
  3.    PAN
  4.    SPM
 Discuss Question
Answer: Option D. -> SPM
Answer: (d).SPM
Question 19. The permissible concentration of PM 10 in the air is ___________
  1.    60μg/m³
  2.    40μg/m³
  3.    50μg/m³
  4.    20μg/m³
 Discuss Question
Answer: Option A. -> 60μg/m³
Answer: (a).60μg/m³
Question 20. The minimum size of the smoke particle is ___________
  1.    0.2μm
  2.    1μm
  3.    0.8μm
  4.    0.5μm
 Discuss Question
Answer: Option D. -> 0.5μm
Answer: (d).0.5μm

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