E1, E2 and E3 are the emf values of the three galvanic cells respectively.
(a) Zn | Zn+2
1 M || Cu+2
0.1 M | Cu
(b) Zn | Zn+2
1 M || Cu+2
1 M | Cu
(c) Zn | Zn+2
0.1 M || Cu+2
1 M | Cu
Which one of the following is true?
E2 > E3 > E1
E3 > E2 > E1
E1 > E2 > E3
E1 > E3 > E2