Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Physical: Electro Chemistry

Question:

Which of the following statement is correct?

Options:

Oxidation occurs at anode in both galvanic and electrolytic cells

Reduction occurs at anode in electrolytic cell whereas oxidation occurs at cathode in galvanic cell

Reduction occurs at anode in both galvanic and electrolytic cells

Oxidation occurs at anode in electrolytic cell while reduction occurs at anode in a galvanic cell

Correct Answer:

Oxidation occurs at anode in both galvanic and electrolytic cells

Explanation:

The correct statement is (1). Oxidation occurs at the anode in both galvanic and electrolytic cells.

In a galvanic cell, oxidation occurs at the anode, and reduction occurs at the cathode. This is because the galvanic cell is a spontaneous cell, meaning that the reaction will occur without any outside input of energy. The oxidation reaction at the anode releases electrons, which then flow through the external circuit to the cathode, where they are used to reduce another species.

In an electrolytic cell, oxidation also occurs at the anode, but reduction occurs at the cathode. This is because the electrolytic cell is a non-spontaneous cell, meaning that the reaction will not occur without an outside input of energy. The energy is provided by an external source, such as a battery, which causes electrons to flow through the external circuit from the cathode to the anode. The oxidation reaction at the anode then releases electrons, which are used to power the external circuit.

Therefore, the only correct statement is 1. Oxidation occurs at the anode in both galvanic and electrolytic cells.