Q.In the reaction $Cr_2O_7^{2-} + 3Sn^{2+} + 14H^+ \rightarrow 2Cr^{3+} + 3Sn^{4+} + 7H_2O$ , $Sn^{2+}$ is:

Reducing agent

Oxidizing agent

Catalyst

None

The correct solution involves applying the fundamental concept to derive the final value step by step...

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Q.In the reaction Cr2O72−+3Sn2++14H+→2Cr3++3Sn4++7H2OCr_2O_7^{2-} + 3Sn^{2+} + 14H^+ \rightarrow 2Cr^{3+} + 3Sn^{4+} + 7H_2OCr2​O72−​+3Sn2++14H+→2Cr3++3Sn4++7H2​O, Sn2+Sn^{2+}Sn2+ is: