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