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.
Options:
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: Option A : A Classical smog occurs in cold humid climate. It is a mixture of smoke, fog and sulphur dioxide. Presence of SO2makes it both acidic as well as reducing.
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