Concept explainers
Interpretation:
The difference between active and inactive electrode and the reason why the inactive electrodes are used has to be identified. The substances which are used as inactive electrodes has to be named.
Concept Introduction:
An
Galvanic cell consists of two half-cells. The redox reaction occurs in these half-cells. The half-cell in which the reduction reaction occurs is known as the reduction half-cell, whereas the half-cell in which the oxidation reaction occurs is known as the oxidation half-cell.
The electrons flow from anode to cathode through the external wire of the circuit. A salt bridge is used to complete the cell circuit.
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
Redox reaction: Redox reaction is a type of
The electric potential applied onto an electrode determines whether it hosts a reduction or oxidation reaction.
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