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

C l_{2}

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H_{2} O_{2}

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S O_{2}

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C l O_{2}

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Solution

The correct options are
A $C l_{2}$
B $H_{2} O_{2}$
C $S O_{2}$
D $C l O_{2}$
Bleaching agents can be of either oxidising or reducing nature.

$(a)$ $C l_{2}$ is a powerful oxidising agent and is used in household bleaches.

$(b)$ Non chlorine bleaches are based on peroxides such as $H_{2} O_{2}$

$(c)$ $S O_{2}$ is a reducing bleach.

$(d)$ $C l O_{2}$ is used as a bleaching agent for paper pulp and textiles.

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