JEE · NEET Previous Year Question
The correct order of the rate of the reaction for the following reaction with respect to nucleophiles is :
Topic: JEE PYQ
Answer: C. Full step-by-step solution below.
- A
- B
- C
- D
Correct answer: C
Solution
(c) For the reaction , nucleophilicity in aprotic solvents is determined by basicity and polarizability.(hydroxide) is the strongest nucleophile and base, making it highly reactive.
(phenoxide) is a good nucleophile with reasonable basicity.
(acetate) is weakened by resonance stabilization of its negative charge across the bonds, reducing its nucleophilicity.
(perchlorate) is a very weak nucleophile, being the conjugate base of a strong acid .
The correct order of nucleophilicity is: , which matches option (c).
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