<Dd> NaCl + NaHSO → HCl + Na SO </Dd> <P> For such generators to function, the reagents should be dry . </P> <P> HCl can also be prepared by the hydrolysis of certain reactive chloride compounds such as phosphorus chlorides, thionyl chloride (SOCl), and acyl chlorides . For example, cold water can be gradually dripped onto phosphorus pentachloride (PCl) to give HCl: </P> <Dl> <Dd> PCl + H O → POCl + 2 HCl </Dd> </Dl>

Explain in terms of molecular polarity why hydrogen chloride is more soluble than methane in water