Chemistry-Substitution Reactions
NEET Chemistry Substitution Reactions Assertion Reason Question
Type: Assertion Reason-assertion-Hard-Class 11
Assertion (A): In electrophilic substitution reactions on benzene, halogens act as deactivating groups. | Reason (R): Halogens decrease the overall electron density on the benzene ring but increase electron density at ortho and para positions due to resonance.
A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false.
Correct Answer
Option A
Detailed Explanation
Halogens are deactivating because they decrease the overall electron density on the benzene ring, but due to resonance, they direct substitution to ortho and para positions, supporting the assertion and reason.
Found an issue with this question?