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Consider the following compounds. The correct decreasing order of their reactivity towards hydrolysis is

1. (a) (i) > (ii) > (iii) > (iv)
2. (b) (iv) > (ii) > (i) > (iii)
3. (c) (ii) > (iv) > (i) > (iii)
4. (d) (ii) > (iv) > (iii) > (i)

Correct answer: (c) (ii) > (iv) > (i) > (iii)

Solution

The reactivity towards hydrolysis depends on the nature of the leaving group and the stability of the intermediate formed. Compounds with better leaving groups and more stable intermediates hydrolyze faster.

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