Question

The chemical change involving iron and hydrochloric acid illustrates which reaction

Answer 1

Hi !

Iron = Fe
Hydrochloric acid = HCl

When a metal (Fe) reacts with an acid (HCl) , Hydrogen gas is liberated .

Here is the reaction that takes place :-

This reaction is an example of oxidation reaction , where HCl gets oxidised to H₂ [ removal of Hydrogen ]

Fe + 2HCl ----> FeCl₂ + H₂