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Question

Which of the following is/are used as a bleaching agent(s)?

A
Cl2
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B
H2O2
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C
SO2
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D
ClO2
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Solution

The correct option is D ClO2
Bleaching agents can be of either oxidising or reducing nature.

(a) Cl2 is a powerful oxidising agent and is used in household bleaches.

(b) Non chlorine bleaches are based on peroxides such as H2O2

(c) SO2 is a reducing bleach.

(d) ClO2​ is used as a bleaching agent for paper pulp and textiles.

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