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Differentiate between the electrodes of the first kind and electrodes of the second kind
Accepted Answer
Electrodes of the first kind are made of the same material as the ions taking part in the electrode reaction. For example, a copper electrode is used in the reaction Cu2+ + 2 e- → Cu.
Electrodes of the second kind are made of an inert material such as platinum or carbon. They are used in reactions where the ions taking part in the electrode reaction are not the same material as the electrode. For example, a platinum electrode is used in the reaction 2 H+ + 2 e- → H2.
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