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