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In the reaction HAsO(2)+Sn^(2+) rarr A...

In the reaction
`HAsO_(2)+Sn^(2+) rarr As+Sn^(4+)+H_(2)O` oxidising agent is

A

`Sn^(2+)`

B

`Sn^(4+)`

C

As

D

`HAsO_2`

Text Solution

Verified by Experts

The correct Answer is:
D
Oxidizing agent itself, undergoes reduction during a redox reaction
`overset(+3)(HAsO_2)+overset(+2)(Sn)rarroverset(0)(As)+overset(+4)(Sn)+H_2O`
Hence, here `HAsO_2` is acting as oxidizing agent.
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