JAMB - Chemistry (2011 - No. 22)
The function of zinc electrode in a galvanic cells is that it
undergoes reduction
serves as the positive electrode
production of electons
uses up electrons
Vysvětlení
If an external electrical conductor connects the copper and zinc electrodes, zinc from the zinc electrode dissolves into the solution as Zn2+ ions (oxidation), releasing electrons that enter the external conductor.