When SO_(2) is passed through acidified K_(2)Cr_(2)O_(7) solution – InterviewSolution

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1.	When SO_(2) is passed through acidified K_(2)Cr_(2)O_(7) solution
Answer» the solution TURNS blue the solution is decolourised `SO_2` is reduced green `Cr_2(SO_4)_3` is formed. Solution :`K_(2)Cr_(2)O_(7)+H_(2)SO_(4)+3SO_(2)rarr K_(2)SO_(4)+Cr_(2)(SO_(4))_(3)+H_(2)O`

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