Ncert Exercises & Solutions

Given below are two statements:

Assertion (A):	Photochemical smog is oxidizing in nature.
Reason (R):	Photochemical smog contains NO₂ and O₃, which are formed during the sequence of reactions.

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