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A: At equilibrium E("cell") becomes zero...

A: At equilibrium `E_("cell")` becomes zero.
R: At equilibrium reduction potential fo both the electrodes becomes equal.

A

If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)

B

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)

C

If Assertion is true statement but Reason is false, then mark (3)

D

If both Assertion and Reason are false statements then mark (4)

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the assertion and reason related to electrochemical cells, we will analyze both statements step by step. ### Step 1: Understanding the Assertion The assertion states that "At equilibrium, E_cell becomes zero." - **Explanation**: In an electrochemical cell, the cell potential (E_cell) is a measure of the driving force for the redox reaction occurring in the cell. When the cell reaches equilibrium, the forward and reverse reactions occur at the same rate. This means that there is no net flow of electrons, and thus, the cell potential becomes zero. ### Step 2: Understanding the Reason The reason states that "At equilibrium, the reduction potential of both electrodes becomes equal." - **Explanation**: At equilibrium, the rates of the forward and reverse reactions are equal, which implies that the potential difference between the two electrodes (anode and cathode) is zero. This means that the reduction potentials of both electrodes must be equal. If they were not equal, there would still be a driving force for the reaction to proceed in one direction, which contradicts the condition of equilibrium. ### Step 3: Conclusion Both the assertion and reason are true, and the reason correctly explains the assertion. Therefore, we conclude that: - **Final Answer**: Both assertion and reason are true, and the reason is the correct explanation of the assertion. ---
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