What is Hydrogen sulphide used for?

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Solution

The chemical formula for Hydrogen sulphide is $H_{2} S$ .
It is a colourless gas which smells like a rotten egg.
It is used to prepare elemental Sulphur( $s$ ) and Sulphuric acid( $H_{2} {SO}_{4}$ ).
It is generally used in industries like petroleum refineries, paper mills, food processing industries, etc.
In analytical chemistry, it is used in the detection test for cations.
Hydrogen sulphide is used to produce many organosulphur compounds such as methanethiol, ethanethiol and thioglycolic acid.
In paint industries, it is used to produce metallic sulphides.
It is also used in the Girdler sulphide process. In this process, heavy water( $D_{2} O$ ) is separated from normal water.

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