Statement-I: In the Daniel cell, if concentration of `Cu^(2+)` and `Zn^(2+)` ions are doubled the emf of the cell will not change.
Because Statement-II: If the concentration of ions in contact with the metals is doubled, the electrode potential is doubled.

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.

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 (A) and (R) are correct, and (R) is the correct explanation of (A) . (b)If both (A) and (R) are correct, but (R) is not the correct explanation of (A) . (c)If (A) is correct, but (R) is incorrect. (d)If (A) is incorrect, (R) is correct.

In the Daniel cell, if the concentrations of Zn^(2+) and Cu^(2+) ions are doubled at 298 K , the e.m.f. Of the cell __________.

For the cell Zn|Zn^(2+)||Cu^(2+)|Cu if the concentration of Zn^(2+) and Cu^(2+) ions is doubled, the emf of the cell: