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Assertion `(A) :` In a Daniell cell, if the concentration of `Cu^(2+)` and `Zn^(2+)` ions are doubled, the `EMF` of the cell will be doubled. Reason `(R) :` If the concentration of ions in contact with metals is doubled, the electrode potential is doubled.A. If both assertion and reason are correct and reason is correct explanation for assertion.B. If both assertion and reason are correct but reason is not correct explanation for assertion.C. If assertion is correct but reason is incorrect.D. If assertion and reason both are incorrect.

Answer» Correct Answer - C
(c ) Correct reason : The effect of concentration on electrode potentialis guided by Nernst equation. On doubling the concentration, emf will remain unchanged since `([Zn^(2+)])/([Cu^(2+)])` will remain same.


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