Question

Arrange the following in the decreasing order of leaving group in nucleophilic substitution reaction.

(a) H^– > Cl^– > HO^– > Br^– > CH3COO^–

(b) Cl^– > Br^– > HO^– > H^– > CH3COO^–

(c) Cl^– > Br^– > CH3COO ^– > HO^– > H^–

(d) HO^– > CH3COO ^– > H^– > Br^– > Cl^–

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Question is from Nucleophillic Substitution Reaction in division Reactivity of Molecules Reaction Mechanism of Engineering Chemistry I

Answer 1

The correct answer is (c) Cl^– > Br^– > CH3COO ^– > HO^– > H^–

The best explanation: The correct order is- Cl^– > Br^– > CH3COO ^– > HO^– > H^–.