1.

What is the e.m.f for the given cell?\[Cr|C{{r}^{3+}}(1.0M)||C{{o}^{2+}}(1.0M)|Co\]\[(E{}^\circ for\text{ }C{{r}^{3+}}/Cr=-0.74\] volt and \[E{}^\circ \] for \[C{{o}^{2+}}/Co=-0.28\] volt)

A. \[-0.46\]volt                   
B. \[-1.02\,~volt\]
C. \[+0.46\] volt                
D. 1.66 volt
Answer» D. 1.66 volt


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