Ncert Exercises & Solutions

Select the correct option based on statements below:

Assertion (A):	In monohaloarenes, further electrophilic substitution occurs at ortho and para positions.
Reason (R):	The halogen atom is a ring deactivator.

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

In monohaloarenes, the halogen atom increases the electron density at ortho and para positions. So. further electrophilic substitution occurs at ortho and para positions. Hence, the Assertion is correct.

The halogen shows -I effect and weak +R effect. Thus, due to strong -I effect halogen atom is a ring deactivator.

NEET Information

courses

Company

Botany Questions

Chemistry Questions

Physics Questions

Zoology Questions