What is the main impurity removed when N₂ is passed through acidified K₂Cr₂O₇? - P BLOCK ELEMENTS Quiz | GKFix.in

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What is the main impurity removed when N₂ is passed through acidified K₂Cr₂O₇?

A. O₂ and H₂
B. CO₂ and H₂O
C. NH₃ and HCl
D. NO and HNO₃

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