question_answer

Arrange the following compounds in increasing order of their reactivity in nucleophilic addition reactions. Ethanal (I), Propanal (II), Propanone (III), Butanone (IV).

A)  II < I < III < IV

B)  III < II < I < IV

C)  I < II < III < IV

D)  IV < III < II < I

Correct Answer: D

Solution :

As the steric hindrance increases, the reactivity decreases, accordingly, so the order of reactivity is I > II > III > IV Hence, the correct option is [d].