Question

Name the gas evolved in each of the following cases:

(i) Copper carbonate is heated strongly.

(ii) Action of dilute hydrochloric acid on sodium sulphite.

(iii) Nitrogen combines with hydrogen.

(iv) Action of dilute sulphuric acid on sodium carbonate.

(v) Addition of sodium to cold water.​

Answer 1

Explanation:

CO2

1. O2+
2. NH2
3. h2o and CO2
4. jsjdmfn

Answer 2

Answer:

i...carbon dioxide

ii...sodium oxide

iii...NH3

iv..CO2...

v..hydrogen..gas