set 3 MCQ Questions & Answers Detailed Explanation

Question : 1

The type of pollution caused by spraying of DDT

a) Air and water

b) Air

c) Air and soil

d) Air, water and soil

Question : 2

The false statement among the followings is:

a) Limestone acts as a sink for SO_x

b) The average residence time of NO is one month

c) SO_x can be removed from flue gases by passing through a solution of citrate ions

d) Ammonia acts as a sink for NO_x

Question : 3

Among the following statements,

1. Minamata disease is caused by mercury.
2. Carbon monoxide is carcinogenic, so it is harmful to human beings.
3. Sewage waste is non-biodegradable pollutant.

a) 2 and 3

b) 1 and 2

c) 1 and 3

d) 1, 2 and 3

Question : 4

Which one of the following correctly defines the state of glass?

a) Condensed gas

b) Super cooled liquid

c) Crystalline solid

d) Liquid crystal

Question : 5

The gas leaked from a storage tank of the Union Carbide plant in Bhopal gas tragedy was

a) Methylamine

b) Ammonia

c) Methyl isocyanate

d) Phosgene

Question : 6

Which of the following is a measure of organic pollution of water –

a) COD

b) BOD

c) DO

d) All of these