Effects of Air Pollutants

Q.

The major threat to Taj Mahal is ________

Q.

Scrubbers are devices used to remove _______ pollutants.

Q.

Explain giving reasons “the presence of CO reduces the amount of haemoglobin available in the blood for carrying oxygen to blood cells”.

Q.

Where do sulfur granules occur?

Q.

Acid rain is caused by excess

1. Production of coal gas

2. Release of CO₂ due to increasing combustion and respiration

3. Release of SO₂ and NO from burning fossil fuels

4. Production of gaseous hydrocarbons

Q.

Carbon monoxide, emitted by automobiles, prevents transport of oxygen in the body due to:

1. Destruction of haemoglobin

2. Formation of clots

3. Forming stable compound with haemoglobin

4. Combining with oxygen to form carbon dioxide

Q.

Acid rains occur in

1. Urban areas

2. Rural areas

3. Highly industrialised regions of the world

4. All of these

Q.

Acid rains are caused by excessive atmospheric pollution due to

1. SO₂

2. N₂O

3. CO₂

4. NH₃

Q.

Why is it necessary to remove sulfur from petroleum products?

1. To reduce the emission of sulfur dioxide in the exhaust fumes

2. To increase the efficiency of automobile engines

3. To increase the lifespan of engine silencers

4. None of the above

Q.

Corrosion of marble monuments and granite statues takes place due to

1. Photochemical smog

2. Heavy rains

3. Acid rain

4. CFCs

Q.

Acid rain is due to increase in atmospheric concentration of

1. Ozone and dust

2. Carbon dioxide and carbon monoxide

3. Sulphur dioxide and carbon monoxide

4. ​​​​​​Sulphur dioxide and nitrogen dioxide

Q. The toxic gas that leaked in the Bhopal gas tragedy was

1. Potassium isothiocyanate
2. Sodium isothiocyanate
3. Ethyl thiocyanate
4. Methyl isocyanate

Q.

The major pollutant behind the infamous `Bhopal’ leakage was

1. Isocyanic acid

2. Methylene

3. Methyl isocyanate

4. Hydrogen cyanide