RRB GROUP D Chemistry Quiz - 54

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Question 1:

Which of the following particulate which cause bronchitis?

Lead oxide

Dust and carbon particles

Mercury

Sulphur dioxide

Water can be conserved by

1,2,4

1,2,3

2,3,4

1,3,4

Bleaching powder is added to the water

To remove the suspended impurities

To remove the large quantity of salt

To make it free from all harmful micro-organisms

To make it odourless

Which of the following is the source of radioactive pollution?

Pollution created from fuels used in atomic reactors.

Pollution created from discharge of untreated domestic sewage into rivers

Pollution created from incomplete combustion of fuels

Pollution created from fertilizers and chemical industries

Which of the following pollutant has a strong smell of rotten egg?

Carbon monoxide

Sulphur dioxide

Hydrogen sulphide

Nitrogen oxides