Q.

Mark the incorrect statement(s) for fuel cells.

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a

It is used in Apollo space programme and for drinking water supply for astronauts.

b

Hydrogen and oxygen are bubbled through porous carbon electrodes

c

Catalyst like finely divided Pt or Pd are incorporated into electrodes

d

Anode reaction is O2+2H2O(l)+4e+→4OH-(aq)

answer is D.

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Detailed Solution

In hydrogen-oxygen fuel cell, anode reaction is 2H2g+4OH-aq→4H2Ol+4e-Given reaction occurs at cathode.
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