Question

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

Answer 1

hey buddy!

I'll give you a sample of this type if question... jus refer to it,

Identify the gas evolved and give the chemical test in each of the following case :

(i) Dilute hydrochloric acid reacts with sodium sulphite.

(ii) Dilute hydrochloric acid reacts with iron (II) sulphide.

that was the question...its answer is...

(i) Sulphur-di-oxide gas is evolved. Colourless, gas with smell of burning sulphur. It turns acidified potassium dichromate orange to green.

(ii) Hydrogen sulphide gas is evolved. Colourless gas with smell of rotten eggs. It turns lead acetate paper black

hope you will understand and try it by yourself..

Answer 2

1st option is correct .

(¡) magnesium metal