Question

What is the polarity of anode in a galvanic cell and why?

Answer 1

1. In a galvanic cell, the anode is negative in polarity because it is the site where oxidation occurs.
2. During oxidation, the metal atoms at the anode lose electrons and form positive ions, which go into the solution.
3. The released electrons accumulate on the anode, making it negatively charged.
4. These electrons then flow through the external circuit towards the cathode, where reduction takes place.
5. Since the anode continuously supplies electrons to the external circuit, it develops a negative polarity.
6. Therefore, in a galvanic cell, the anode is negative due to the loss of electrons during oxidation.