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Question

Antichlor compound used for the removal of Cl2 after bleaching of cloth is :

A
conc. HNO3
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B
H2S
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C
Na2S2O3.5H2O
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D
Na2SO4.10H2O
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Solution

The correct option is C Na2S2O3.5H2O
An antichlor is a substance used to decompose residual hypochlorite or chlorine after chlorine-based bleaching in order to prevent ongoing reactions with the material that has been bleached.
Na2S2O35H2O is a strong oxidising agent so it is used for the removal of Cl2 after bleaching of cloth.

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