1.

The overall reactions of a hydrogen -oxygen fuel cell isA. `2H_(2(g)) + O_(2(g)) to 2H_2O_((l))`B. `2H_(2(g)) + 4OH_((aq)) to 4H_2O_((l)) + 4e^(-)`C. `O_(2(g)) + 2H_2O_((l)) + 4e^(-) to 4OH_((aq))^-`D. `4OH_((aq))^(-) + 4e^(-) to 2H_2O_((l))`

Answer» Correct Answer - A
`{:("At anode:",2H_(2(g))+4OH_((aq))^(-) to 4H_2O_((l))+4e^(-)),("At cathode:",O_(2(g))+2H_2O_((l))+4e^(-) to 4OH_((aq))),("Overall reaction:",2H_(2(g)) +O_(2(g)) to 2H_2O_((l))):}`


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