1.

Which of the following equations represents the oxidising action of sulphur dioxide .

Answer»

`2FE^(3+) + SO_(2) + 2H_2O to 2Fe^(2+) + SO_(4)^(2-) + 4H^(+)`
`2Fe + SO_(2) to 2FeO + FeS`
`2MnO_(4)^(-) + 2H_2O + 5SO_(2) to 2MN^(2+) + 4H^(+) + 5SO_(2)^(2-)`
`Cr_2O_(7)^(2-) + 2H^(+) + 2SO_(2) to 2C_(r )^(3+)3SO_(4)^(2-) + H_2O`

Answer :B


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