Question

Write the observations on the action of dilute H₂SO₄ on the following.
(i) Metal
(ii) Metal carbonate
(iii) Metal sulphite
(iv) Metal sulphide

Answer 1

Answer:

action are observed on 1 meatl

Answer 2

Reactions of diluted H₂SO₄

Explanation:

i) Dilute sulphuric acid reacts with metals and undergoes a displacement reaction to form hydrogen gas and salt (the metal sulphate).

(ii) When sulphuric acid reacts with a metal carbonate, the metal sulphate salt, carbon dioxide and water are formed.

(iii) When sulphuric acid reacts with metal sulphite, double replacement reaction happens in two steps. In the first step, sulphuric acid reacts with metal sulphite to give metal sulphate salt and sulphurous acid. In the second step, sulphurous acid, which is highly unstable decomposes spontaneously into sulphur dioxide and water.

(iv) When diluted sulphuric acid is added to pieces of metal sulphide, hydrogen sulphide gas is produced and metal sulphate salt is formed.