What happens when:

(a) zinc reacts with NaOH


(b) zinc reacts with HCl?

a. When zinc reacts with NaOH the following reaction takes place: -


2NaOH + Zn Na2ZnO2 + H2


Hydrogen gas is evolved with the formation of the corresponding salt.


b. When zinc reacts with HCl the following reaction takes place: -


2HCl + Zn ZnCl2 + H2


Hydrogen gas is evolved with the formation of the corresponding salt.


19