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Can we perform sodium nitroprusside test...

Can we perform sodium nitroprusside test for sulphide, if sulphite is also present in sodium carbonate extract of sulphide?

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No, as "sodium carbonate extract" of sulphite gives rose red colouration with sodium nitroprusside.
`Na_(2)[Fe(CN)_(5)NO]+SO_(3)^(2-)+2Na^(+) to Na_(4)[Fe(CN)_(5)NOSO_(3)]`
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