CH-1742
Hydrogen fuel cells
Chemistry · Secondary 4 · Hard · Hydrogen fuel cells
In a hydrogen fuel cell, hydrogen gas is supplied to the anode and oxygen to the cathode. Which statement about the anode process is correct?
- Hydrogen is oxidised to H^+ ions, releasing electrons into the external circuit.
- Hydrogen is reduced to H_2O at the anode, releasing electrons into the external circuit.
- Hydrogen is oxidised to H^+ ions by gaining electrons from the circuit.
- Hydrogen does not react; only oxygen reacts in the fuel cell.
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