In paper industry, the chemical compound used for bleaching is :

potassium sulphite

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calcium sulphate

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sulphuric acid

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calcium bisulfite

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Solution

The correct option is C calcium bisulfite
A bleaching agent is a material that lightens or whitens a substrate through chemical reaction. The bleaching reactions usually involve oxidative or reductive processes that degrade color systems In paper industry, the chemical compound used for bleaching is calcium bisulphate.

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