JEE MAIN - Chemistry (2004 - No. 35)
In a hydrogen – oxygen fuel cell, combustion of hydrogen occurs to :
generate heat
remove adsorbed oxygen from electrode surfaces
produce high purity water
create potential difference between the two electrodes
Giải thích
In $${H_2} - {O_2}$$ fuel cell, the combustion of $${H_2}$$ occurs to create potential difference between the two electrodes