Question

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.

• A. Both A and R are correct and R is the correct explanation of A.
• B. Both A and R are correct but R is not the correct explanation of A.
• C. A is correct but R are not correct.
• D. A is not correct but R is correct.

Answer 1

The correct option is A

Both A and R are correct and R is the correct explanation of A.

Classical smog occurs in cold humid climate. It is a mixture of smoke, fog and sulphur dioxide. Presence of $S{O}_2$ makes it both acidic as well as reducing.