Ferric chloride is reduced when zinc and hydrochloric acid are added to its solution and not by passing H_2 gas through its solution. Explain

Ferric chloride is reduced when zinc and hydrochloric acid are added t

1.	Ferric chloride is reduced when zinc and hydrochloric acid are added to its solution and not by passing H_2 gas through its solution. Explain
Answer» Solution :Ordinary `H_2` is LESS reactive and THEREFORE, it does not reduce acidified `FeCl_3` solution. However, when zinc is added to acidified `FeCl_3` solution, nascent hydrogen is produced which has ENORMOUS ENERGY. It is more reactive than ordinary `H_2` and reduces acidified `FeCl_3` solution. `FeCl_3 + H_2 to ` No reaction `ZN + H_2 SO_4 to ZnSO_4 + underset("nascent hydrogen")(H_2^)` `2FeCl_3 + H_2^() to underset("Green")(2FeCl_3) + 2HCl`