Ncert Exercises & Solutions

Select the correct option based on statements below:

Assertion (A):	Nitration of chlorobenzene leads to the formation of m-nitrochlorobenzene.
Reason (R):	—NO₂ group is an m-directing group.

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.

Hint: Halogens are ortho para directing group

Nitration of chlorobenzene leads to the formation of o or p-nitrochlorobenzene because Cl is an ortho/para directing group.

Chlorination of nitrobenzene leads to the formation of ‘m-nitrochlorobenzene because —NO₂, group deactivates the ring and it is meta directing group.

Hence, Assertion is false but the reason is true.