1.

The standard electrode potential for the two electrode \[{{A}^{+}}/A\] and \[{{B}^{+}}/B\] are respectively 0.5 \[V\] and 0.75 \[V\]. The \[emf\] of the given cell  \[A\,\,|\,\,{{A}^{+}}(a=1)\,\,||\,\,{{B}^{+}}(a=1)\,\,|\,\,B\] will be

A.                 1.25 \[V\]           
B.                 ? 1.25 \[V\]
C.                 ? 0.25 \[V\]        
D.                 0.25 \[V\]
Answer» E.


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