Question

Name the gas evolved when zinc granules are treated/heated with
a)hydrochloric acid
b)sodium hydroxide solution​

Answer 1

Answer:

a>H2o

b>H2o

Because in both the reaction H2o gas is present

Answer 2

Answer:

The reaction between zinc and hydrochloric acid is Zn + HCl = H2 + ZnCl2.That means hydrogen gas(H2) is evolved.

When sodium hydroxide solution is heated with zinc granules then hydrogen gas(H2) are formed.

2NaOH(aq)+ Zn(s)----->Na2ZnO2 (aq)+ H2(g)

Hope this will help you....