Compound 'A' reacts with `PCI_(5)` to given 'B' which one treatement with `KCN` followed by
Channel: Doubtnut
Date: 23/08/2020

Compound 'A' reacts with `PCI_(5)` to given 'B' which one treatement with `KCN` followed by hydrolysis gave propanoic acid as the product. What is 'A'?