Which of the following compounds will show retention in the configuration on nucleophilic substitution by ion?
The explanation for the correct answer
A.
The explanation for the incorrect answers
B.
C.
D.
Out of the given options, only A shows retention of configuration as the carbon atom next to the chiral carbon is attacked by the nucleophile and as a result, the chirality of the carbon remains unchanged.
Thus, A is the correct option.