Dilute hydrochloric acid (HCl) reacts with metals to evolve _____ gas along with the formation of corresponding metal salt.
Acids react with metals to produce the respective metal salt along with hydrogen gas. The general form of the reaction is given below:
Acid (aq)+Metal (s)→Salt (aq)+Hydrogen (g)
For example:
When hydrochloric acid reacts with zinc, it produces zinc chloride along with the evolution of hydrogen gas.
The chemical reaction is given below:
2HCl (aq)+Zn (s)→ZnCl2 (aq)+H2 (g)