Chemistry - Study Mode

[#466] Match the List-I with List-II and select the correct answer using the codes given below the lists List-I (Green house gas) List-II(Major source) F. Carbondioxide 1. Enteric fermentation in cattle G. Methane 2. Burning of fossil H. Chloroflro carbons 3. Mercury compounds in waste water J. Nitrous oxide 4. Nylon production 5. Air conditioner and refrigeration units Codes : F G H J A. 2 1 5 4 B. 3 4 2 1 C. 3 2 4 1 D. 1 2 3 4
Correct Answer

(A) A

[#467] Acid rain is caused by
Correct Answer

(D) SO 2 and NO 2

Explanation

Solution: Acid rain is caused by sulphur dioxide and nitrogen dioxide.

[#468] The Bhopal gas tragedy was caused by the gas
Correct Answer

(C) Methyl Isocyanate

Explanation

Solution: 3 leak of toxic methyl isocyanate gas at a Union Carbide plant in the central Indian city of Bhopal produced history's worst industrial disaster, stunning India and the world.

[#469] The Bhopal tragedy was caused by the gas
Correct Answer

(C) Methyl isocyanate

Explanation

Solution: 3 leak of toxic methyl isocyanate gas at a Union Carbide plant in the central Indian city of Bhopal produced history's worst industrial disaster, stunning India and the world.

[#470] Which of the following caused radioactive pollution along the coast of Kerala ?
Correct Answer

(C) Thorium

Explanation

Solution: The coastal belt of Karunagappally, Kerala is known for high background radiation from thorium-containing monazite sand. This has increased the risk of cancer in this area. So, the correct answer is 'Thorium'.