Question

Name the gas evolved in each of the following cases:
() 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.
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Answer 1

1. co2

2. so2

3. NH3

4.co2

5.H2

Answer 2

Answer:

These are the answers

1. carbon dioxide CO²
2. sulfur dioxide SO²
3. nitrogen dioxide NO²

4. carbon dioxide CO² and sulfur dioxide SO²

5. reaction will not take place because sodium react with hot water or steam