What is the role of H+ in the reaction Cr2O7^2– + 3SO3^2– + 8H+ → 2Cr^3+ + 3SO4^2– + 4H2O? - REDOX REACTIONS AND ELECTROCHEMISTRY Quiz | GKFix.in

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Question

What is the role of H+ in the reaction Cr2O7^2– + 3SO3^2– + 8H+ → 2Cr^3+ + 3SO4^2– + 4H2O?

A. It acts as a catalyst
B. It balances oxygen atoms
C. It balances the ionic charges
D. It acts as a reducing agent