NEET Chemistry Substitution Reactions Assertion Reason Question
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.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false.
Correct Answer
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?
Related Questions
More from Substitution Reactions
More from
CH₃—C≡CH 40% H₂SO₄, 1% HgSO₄ → A Isomerisation → CH₃—C—CH₃
Match Column-I with Column-II. Column-I Column-II (a) Alkane (i) Triple bond (b) Alkyne (ii) Addition reactions (c) Paraffins (iii...
The products for the following reactions are (i) CH₃−C−CH₂−CH₃ + alc. KOH → X (ii) CH₃−CH=CH−CH₂ + O₃ → Y + X