Chemistry - Electrochemistry Question with Solution | TestHub

In a ${\mathrm{H}}_2-{\mathrm{O}}_2$ fuel cell, hydrogen gas acts as the fuel and oxygen gas acts as the oxidising agent.

The electrolyte used is a concentrated aqueous solution of sodium hydroxide or potassium hydroxide (KOH).

The electrodes are made of porous carbon containing suitable catalysts like finely divided platinum or palladium metal. Platinum wires are not used as the anode and cathode.

Therefore, the statement that platinum wires are used as anode and cathode is incorrect.

Answer: Platinum wires are used as anode and cathode