1.

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?

Answer»

`B GT C gt a`
`b gt a gt c `
`a gt b gt c `
c gt a gt b`

ANSWER :B


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