Identify the gas evolved and give the chemical test in each of the following cases :
(i) Dilute hydrochloric acid reacts with sodium sulphite.
(ii) Dilute hydrochloric acid reacts with iron (II) sulphide.

State your observations when : Dilute hydrochloric acid reacts with sodium sulphite.

State your observations when : Dilute hydrochloric acid reacts with iron (II) sulphide.

Write the balanced chemical equation for the following: (1) Action of Hydrochloric acid on sodium bicarbonate. (2) Identify the gas evolved and give the chemical test in each of the following cases : Dilute Hydrochloric acid is added to Lead nitrate solution and the mixture is heated.

Name the gas evolved in each of the following cases : Action of dilute hydrochloric acid on zinc sulphide.

Which of the following metals will not react dilute hydrochloric acid?

Name the gas that is produced in the following case : Action of dilute hydrochloric acid on sodium sulphide.

Name the gas evolved in each of the following cases : Addition of dilute sulphuric acid to sodium sulphite.

Name the gas evolved in each of the following cases. Addition of dilute hydrochloric acid to baking soda.

What do you observe when : Dilute hydrochloric acid reacts with Hg.

Write equations for the following: Dilute hydrochloric acid and sodium thiosulphate.