Question

Which one of the following compound will give (d) and (l) form in $S_{N}1$ reaction (as major product)?

• A.
• B.
• C.
• D. $C{H}_{3}Cl$

Answer 1

The correct option is C

Stereochemistry in nucleophilic substitution reaction arises due to presence of a chiral carbon in compound.
$S_{N}1$ reaction of an optically active halide is accompanied by racemization and it give equimolar mixture of d and l forms of an optically active compound.

Only compound (b) has chiral carbon. Hence, it gives racemic product during $S_{N}1$ reaction.