Smog, Classical Smog

Q. Assertion (A): Classical smog occurs in cold humid climate and it is acidic as well as reducing in nature.
Reason (R): It is a mixture of smoke, fog and sulphur dioxide.

1. Both A and R are correct and R is the correct explanation of A.
2. Both A and R are correct but R is not the correct explanation of A.
3. A is correct but R are not correct.
4. A is not correct but R is correct.

Q. Which one of the following is mainly responsible for depletion of ozone layer?

1. Methane
2. Carbon dioxide
3. Water
4. Chlorofluorocarbon

Q.

Which of the following are common components of a photochemical smog?

1. PAN

2. Acrolein

3. Nitric oxide

4. All of the above

Q. Which one of the following is mainly responsible for depletion of ozone layer?

1. Methane
2. Carbon dioxide
3. Water
4. Chlorofluorocarbon

Q.

Photochemical smog:

1. Is very pleasant

2. Causes health benefits

3. Smells wonderful and pleasant

4. None of the above

Q.

Photochemical smog:

1. Is very pleasant

2. Causes health benefits

3. Smells wonderful and pleasant

4. None of the above