Question

For the cell prepared from electrode $A$ and $B$, electrode $A : \frac{ Cr _{2} O _{7}^{2-}}{ Cr ^{3+}}, E _{\text {red. }}^{0}=+1.33 V$ and electrode $B$ : $\frac{F_{e^{3+}}^{F e^{2+}}, E_{\text {red. }}^{0}}{}=0.77 V$, which of the following statement is not correct?

(A) The electrons will flow from $B$ to $A$ (in the outer circuit) when connections are made.

(B) The standard emf of the cell will be $0.56 V$.

(C) A will be positive electrode.

(D) None of the above.

Answer 1

None of the above statement is correct. So, The correct option of this question is (D).