1.

Markthe incorrect statement (s) for fuel cell

Answer»

it is USED in pollo space programme and for drinking water supply for astronauts
gydrogen and oxygen are bubbled through porous carbon electrode
catalyst like FINELY DIVIDED pt or pd are incorporated in to electrode
anode reaction is
`O_(2)2H_(2)O(l)+4e^(-)rarr4OH^(-)(aq)`

Solution :`H_(2)-O_(2)`fuel cell is usedover ordinary cell becausethey do not cause any pollutionand have high efficiencyof 60 - 70 %


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