ElectrochemistryHard
Question
In H2 - O2 fuel cell the reaction occuring at cathode is :
Options
A. 2 H2O + O2 + 4 e- → 4OH-
B.2 H2 + O2 → 2 H2O (l)
C.H+ + OH- → H2O
D. H+ + e- → 
H2 .
H2 .Solution
H2 - O2 fuel cell
At anode : 2OH- + H2 → 2H2O + 2e-
At cathode : 2 H2O + O2 + 4e- → 4OH-
At anode : 2OH- + H2 → 2H2O + 2e-
At cathode : 2 H2O + O2 + 4e- → 4OH-
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