question_answer

Which two of the following compounds are reduced to the same chiral alditol by sodium borohydride?

I.

II.

III.

IV.

A) II and III           

B) I and II

C) III and IV          

D) II and IV

Correct Answer: B

Solution :

[b] For giving the same chiral alditol after reduction, the configuration of rest of the chain should be the same.