Question

Give the test of the gas is evolved when dilute sulphuric acid is added to the following:
I) Magnesium metal
ii) Sodium carbonate
iii) Sodium sulphide
iv) Potassium sulphide

Answer 1

Answer:

Carbon dioxide

Explanation:

Answer 2

Answer:

(i) Dilute hydrochloric acid reacts with sodium sulphite. (ii) Dilute hydrochloricacid reacts with iron (II) sulphide. (i)Sulphur-di-oxide gas is evolved. Colourless, gas with smell of burningsulphur.