environmental chemistry - Category wise Question and Answer Practice Test with Solutions

Question : 31

BOD is connected with

a) organic matter

b) microbes

c) microbes and organic matter

d) None of these

Question : 32

The substance having the largest concentration in acid rain?

a) HNO₃

b) HCl

c) H₂CO₃

d) H₂SO₄

Question : 33

Match List-I with List-II :

a) A – 4, B – 2, C – 1, D – 3

b) A – 1, B – 4, C – 2, D – 3

c) A – 4, B – 1, C – 2, D – 3

d) A – 4, B – 1, C – 3, D – 2

Question : 34

Identify the wrong statement in the following:

a) Greenhouse effect is responsible for global warming.

b) Acid rain is mostly because of oxides of nitrogen and sulphur.

c) Chlorofluorocarbons are responsible for ozone layer depletion.

d) Ozone layer does not permit infrared radiation from the sun to reach the earth.

Question : 35

Which one of the following statements about ozone and ozone layer is true?

a) The conversion of ozone to oxygen is an endothermic reaction

b) Ozone has a triatomic linear molecule

c) Ozone layer is beneficial to us because ozone cuts out the ultraviolet radiation of the sun

d) None of these