1.

Which of the following reaction cannot change SO_(2)rarrSO_(4)^(2-)?

Answer»

`SO_(2)+MnO_(4)^(-)OVERSET(H^(+))(rarr)`
`SO_(2)+Ba(OH)_(2)rarr`
`SO_(2)+Cr_(2)O_(7)^(2-)overset(H^(+))(rarr)`
`SO_(2)+FE^(3+)overset(H^(+))(rarr)`

Answer :B


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