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JEE Main Chemistry question

ChemistryElectrochemistryJEE Main

**Statement 1:** In a Daniel cell, if the concentrations of and ions are both doubled, the emf of the cell will be doubled.

**Statement 2:** If the concentration of the ion in contact with a metal electrode is doubled, that electrode's potential will double.

Answer: (D)

Solution

By the Nernst equation, . If both and are doubled together, their ratio is unchanged, so stays essentially the same —

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Question ID VK-143689