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Environmental chemistry

Total questions: 10

Worksheet time: 9mins

Name
Class
Date
1.

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

a)

phosgene

b)

methylisocyanate

c)

methylamine

d)

ammonia

2.

Taj Mahal is being slowly disfigured and discolored. This is primarily due to

a)

acid rain

b)

soil pollution

c)

water pollution

d)

global warming

3.

The smog is essentially caused by the presence of

a)

O2 and O3

b)

O2 and N2

c)

oxides of Sulphur and nitrogen

d)

O3 and N2

4.

Which of the following is not a Greenhouse Gas

a)

CO2

b)

CH4

c)

Chlorofluoro Carbons

d)

O2

5.

Environmental pollution refers to

a)

peeling of top soil

b)

dissipation of energy

c)

release of toxic/undesirable materials in environment

d)

none of the above

6.

Photochemical smog is generally formed

a)

in early hours of winters

b)

around mid day in summer months

c)

When intensity of solar radiations is very low

d)

When concentration of particulate matter is very low.

7.

Chief source of water and soil pollution is

a)

Mining of ores

b)

Thermal power plant

c)

Argo-industry

d)

All of the above.

8.

Whcih of the following is biodegradable pollutant ?

a)

Domestic waste

b)

DDT

c)

Mercury salts

d)

Aluminum foil.

9.

Water pollution is due to

a)

Agricultural discharges

b)

Sewage and other wastes

c)

Industrial effluents

d)

All the above.

10.

Which of the following pose threat to historical monument Taj ?

a)

Floods in Yanuna river

b)

Temperature mediated spoilage of marble

c)

Air pollutants from Mathura refinery

d)

Weathering of marble.