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Question

Assertion : In the Daniel cell, if concentration of Cu2+ and Zn2+ ions are doubled, the emf of the cell will not change. Reason: If the concentration of ions in contact with the metals is doubled, the electrode potential is doubled.

A

assertion is true, reason is true; reason is correct explanation for assertion.

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B

assertion is true, reasonis true; reasonis NOT a correct explanation for assertion.

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C

assertion is true, reasonis false

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D

assertion is false, reason is true

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Solution

The correct option is C

assertion is true, reasonis false


As we know,
For Daniell cell,
if the concentration of Cu2+ and Zn2+ ions are doubled, the EMF of the cell will be the same according to the equation.

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