Q1 / 155 · WBJEE 2020 · Chemistry

Figure
For the above three esters, the order of rates of alkaline hydrolysis is

  • A
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  • B
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  • Correct answer
    C
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  • D
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Solution

Hint: Alkaline hydrolysis is a nucleophilic substitution reaction on ester. Hence, presence of electron withdrawing group promotes nucleophilic attack $-\mathrm{NO}_{2} \quad-\mathrm{R}$ and $-\mathrm{I}$ $-\mathrm{OMe} \quad+\mathrm{R},-\mathrm{I}$ $-$ Me $\quad$ + I and Hyperconjugation

Hence, the correct answer is option: 'C'.

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