Which one of the following statement is correct when `SO_(2)` is passed through acidified `K_(2)Cr_(2)O_(7)` solution?A. Green `Cr_(2)(SO_(4))_(3)` is formedB. The solution truns blueC. The solution is decolourizedD. `SO_(2)` is reduced

Which one of the following statement is correct when `SO_(2)` is passe

1.	Which one of the following statement is correct when `SO_(2)` is passed through acidified `K_(2)Cr_(2)O_(7)` solution?A. Green `Cr_(2)(SO_(4))_(3)` is formedB. The solution truns blueC. The solution is decolourizedD. `SO_(2)` is reduced
Answer» Correct Answer - 1 In presence of moisture `SO_(2)` acts as a good reducting agent .It reducing character is due to the evolution of nascent hydrogen: `SO_(2)+2H_(2)OrarrH_(2)SO_(4)2[H]` Sulphur dioxide truns orange coloured potassium dichromatic solution green : `{:(K_(2)Cr_(2)O_(7)+4H_(2)SO_(4) rarr H_(2)SO_(4)+Cr_(2)(SO_(4))_(3)+4H_(2)O+3[O]),(SO_(2)+H_(2)O+[O] rarr H_(2)SO_(4)"]"xx3),(bar(underset(("orange"))(K_(2)Cr_(2)O_(7))+H_(2)SO_(4)+3SO_(2) rarr K_(2)SO_(4))underset(("Green"))(+)Cr_(2)(SO_(4))_(3)+H_(2)O):}`

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Which one of the following statement is correct when `SO_(2)` is passed through acidified `K_(2)Cr_(2)O_(7)` solution?A. Green `Cr_(2)(SO_(4))_(3)` is formedB. The solution truns blueC. The solution is decolourizedD. `SO_(2)` is reduced

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