The standard reduction potentials of `Zn^(2+)//Zn,Cu^(2+)//Cu and Ag^(+)//Ag` are respectively -0.78, 0.34 and 0.8 V. The following cells were constructed:
(1) ` Zn |Zn^(2+)|| Cu^(2+)|Cu`
(2) ` Zn |Zn^(2+)|| Ag^(+)|Ag`
(3) ` Cu |Cu^(2+)|| Ag^(+)|Ag `
What is the correct order of of these cells?

Options

A. `b gt c gt a`
B. `b gt a gt c `
C. `a gt b gt c `
D. c gt a gt b`

Answer

B