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ExamsJEE MainChemistry

Assertion A: Hydrolysis of an alkyl chloride is a slow reaction but in the presence of NaI, the rate of the hydrolysis increases. Reason R: I⁻ is a good nucleophile as well as a good leaving group. In the light of the above statements, choose the correct answer from the options given below. (1) Both A and R are true and R is the correct explanation of A (2) A is false but R is true (3) A is true but R is false (4) Both A and R are true but R is NOT the correct explanation of A

  1. Both A and R are true and R is the correct explanation of A
  2. A is false but R is true
  3. A is true but R is false
  4. Both A and R are true but R is NOT the correct explanation of A

Correct answer: Both A and R are true and R is the correct explanation of A

Solution

The hydrolysis of alkyl chlorides is indeed slow, but the presence of NaI enhances the reaction rate because I⁻ acts as a strong nucleophile, facilitating the substitution reaction. Additionally, I⁻ is a good leaving group, which further supports the reaction mechanism, making R a valid explanation for A.

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