Give a reason why platinum is used as the electrode in half-cell A

Answer 1

One reason why platinum is often used as an electrode in half-cell A is because it is an inert metal. This means that it does not react with the substances in the half-cell and therefore does not interfere with the redox reactions taking place. Platinum is also a good conductor of electricity, allowing for efficient electron transfer during the electrochemical reactions. Additionally, platinum is highly stable and resistant to corrosion, ensuring a long lifespan for the electrode.