Chloroethane may be converted into sodium propanoate. $\text{chloroethane} \rightarrow Q \rightarrow \text{sodium propanoate}$ To form sodium propanoate, the intermediate, $Q$, is hydrolysed using boiling aqueous sodium hydroxide. Which reagent would convert chloroethane into the intermediate, $Q$?
- Aconcentrated ammonia solution
- Bdilute sulfuric acid
- Chydrogen cyanide
- Dpotassium cyanide