Give the odour of the gas evolved and name the gas produced when sodium sulphide is added to a solution of HCI in water.

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Solution

Hydrogen sulphide gas, $H_{2} S$ , is produced, the odour of 'rotten egg.'

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Q. A solution of hydrogen chloride in water is prepared. The following substances are added to separate portions of the solution:

S. No.	Substance added	Gas evolved	Odour
1. 2. 3. 4.	calcium carbonate magnesium ribbon manganese (IV) oxide with heating sodium sulphide	__ __ __ __	__ __ __ __

Complete the table by writing the gas evolved in each case and its odour.

Q. A solution of hydrogen chloride in water is prepared. The following substances are added to separate portions of the solution:

S.No.	Substances added	Gas evolved	Odour
1. 2. 3. 4.	Calcium carbonate Magnesium ribbon Manganese (IV) oxide with heating Sodium sulphide	___ ___ ___ ___	___ ___ ___ ___

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(a) Name the gas evolved when dilute hydrochloric acid is added to:
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Give the odour of the gas evolved and name the gas produced when sodium sulphide is added to a solution of HCI in water.

Hydrogen sulphide gas, H2S, is produced, the odour of 'rotten egg.'

Hydrogen sulphide gas, $H_{2} S$ , is produced, the odour of 'rotten egg.'