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When SO2 is passed through acidified K2 Cr2O7 solution

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When SO2 is passed through acidified K2 Cr2O7 solution 

(A)  Solution turns blue 

(B)  Solution decolourizes 

(C)  SO2 is reduced 

(D)  Green Cr2 (SO4)3 is formed

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Correct option  (D) Green Cr2 (SO4)3 is formed

Explanation:

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