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Reducing property of SO2 is shown in the...

Reducing property of `SO_2` is shown in the reaction

A

`2H_2 S + SO_2 rarr 3S + 2H_2O`

B

`I_2 + SO_2 + H_2O rarr SO_(4)^(2-) +2I^(-) + 4H^(+)`

C

`3Fe + SO_2 rarr 3FeO + FeS`

D

`4Na + 3SO_2 rarr Na_(2) SO_3 + Na_2S_2O_3`

Text Solution

Verified by Experts

The correct Answer is:
B
`overset(0)I_2+overset(+4)(SO_2)+H_2Orarroverset(+6)(S)O_4^(2-)+overset(-1)(2I^(-))+4H^(+)`
`I_2` reduces to `I^(-)` because of reducing agent `SO_2 `.
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