Chemistry-(general)
NEET Chemistry (general) Assertion Reason Question
Type: Assertion Reason-assertion-Medium-Class 12
Assertion (A): CH3I reacts faster than CH3Br in an SN2 reaction with –OH. | Reason (R): Iodine is a better leaving group than bromine due to its larger atomic size.
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 but (R) is true.
Correct Answer
Option A
Detailed Explanation
CH3I reacts faster than CH3Br in SN2 reactions because iodine, being larger, is a better leaving group than bromine. This is directly stated in the NCERT context.
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