Chemistry · PYQ NEET UG 2025
हिन्दीGiven below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : \( \text{I} \) undergoes \( \text{S}_\text{N}2 \) reaction faster than \( \text{Cl} \). Reason (R) : Iodine is a better leaving group because of its large size. In the light of the above statements, choose the correct answer from the options given below :
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Correct answer · Option A
Both A and R are true and R is the correct explanation of A
Explanation
Iodide ion is a very good leaving group due to its large size and weak C-I bond, making it undergo nucleophilic substitution faster.