Question

b) Name the gas evolved in the following cases : 1) Action of sulphuric acid on calcium carbonate 2) Action of sulphuric acid on sodium sulphite 3) Action of sulphuric acid on iron sulphide

Answer 1

Answer:

1) Carbon Dioxide

2)Sulphur Dioxide gas

3) Hydrogen Sulphide

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Answer 2

Answer:

1) calcium sulphate + carbon dioxide + water

2) sodium hydrosulphide + sulphur dioxide + sulphur + water

3) ferrus sulphate + hydrogen sulphide

Explanation:

1) ACID + ANY BICARBONATE OR CARBONATE ---------------------- SALT + CO2 + H2O

3). double displacement reaction

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