Question

The increasing order of the following compounds towards HCN addition is :

(1) (iii) < (i) < (iv) < (ii)

(2) (i) < (iii) < (iv) < (ii)

(3) (iii) < (iv) < (ii) < (i)

(4) (iii) < (iv) < (i) < (ii)

Comments

Aldehydes,ketones and carboxylic acids, Chemical reactions of aldehydes and ketones

Answer 1

Ans. (1) (iii) < (i) < (iv) < (ii)

Sol. –I, – M effect of NO₂ increase reactivity towards nucleophilic addition reaction with HCN.