Chemistry MCQs

Question 1

Which one of the following group of gases contributes to the 'Green House Effect'?

Accepted Answer

Carbon dioxide and Methane

Answer

Ammonia and Ozone

Answer

Carbon monoxide and Sulphur dioxide

Answer

Carbon tetraflouride and Nitrous oxide

Question 2

Black lung disease occurs in people working in

Accepted Answer

Coal mines

Answer

Electroplating industry

Answer

Organic solvents industry

Answer

Paint manufacturing industry

Question 3

The least preferred technique in the disposal of Municipal Solid Waste is

Accepted Answer

Bricketting

Answer

Incineration

Answer

Composting

Answer

Land filling

Question 4

Which one of the following was used as a chemical weapon in the first world war ?

Accepted Answer

Mustard gas

Answer

Carbon monoxide

Answer

Hydrogen cyanide

Answer

Water gas

Question 5

The depletion of ozone layer is due to

Accepted Answer

Chlorofluorocarbons

Answer

Carbon dioxide

Answer

Sulphur dioxide

Answer

Ethane

Question 6

Ozone depletion in the atmosphere is mainly caused by

Accepted Answer

Chlorofluorocarbon

Answer

Sulphur dioxide

Answer

Nitrogen dioxide

Answer

Hydrogen sulphide

Question 7

Ozone depletion in the stratosphere is mainly caused by

Accepted Answer

Chlorofluorocarbons

Answer

SO2

Answer

NO2

Answer

NO

Question 8

Which of the following is not a gaseous air pollutant?

Accepted Answer

Hydrocarbon

Answer

Oxides of nitrogen

Answer

Smoke

Answer

Oxides of sulphur

Question 9

Which of the following is ozone depleting pesticide ?

Accepted Answer

Methyl bromide

Answer

D.D.T.

Answer

Benzene

Answer

Ethylene ozonide