First slide

Chlorine - properties ,Structure and Uses

Question

In the use of Cl₂ as bleaching agent, the substance that is mainly responsible for the bleaching action is

Easy

A

HClO₂
B

HClO₃
C

HClO₄
D

HOCl

Solution

Moist Cl₂ acts as bleaching agent ,in which Cl₂ react withH₂O to give Hypochlorous acid . ( H₂O + Cl₂ $â$ HCl + HOCl)
Hypochlorous acid is unstable and decomposes to give nascent oxygen( HOCl $â$ HCl + (O))
Thus moist chlorine acts as oxidant and bleaching agent.

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