For the cell prepared from electrode A and B; Electrode A∶${\rm{C}}{{\rm{r}}_2}{\rm{O}}_7^{2 - }|{\rm{C}}{{\rm{r}}^{3 + }},E_{{\rm{red}}}^ \circ = + 1.33{\rm{V}}$ and Electrode B : ${\rm{F}}{{\rm{e}}^{3 + }}|{\rm{F}}{{\rm{e}}^{2 + }},E_{{\rm{red}}}^ \circ = 0.77{\rm{V}}$. Which of the following statement is correct?

The electrons will flow from B to A when connection is made

The e.m.f. of the cell will be 0.56 V

NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

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For the cell prepared from electrode A and B; Electrode A∶

\mathrm{C}{\mathrm{r}_2}\mathrm{O}_7^{2 - }|\mathrm{C}{\mathrm{r}^{3 + }},E_{\mathrm{red}}^ \circ = + 1.33\mathrm{V}

and Electrode B :

\mathrm{F}{\mathrm{e}^{3 + }}|\mathrm{F}{\mathrm{e}^{2 + }},E_{\mathrm{red}}^ \circ = 0.77\mathrm{V}

. Which of the following statement is correct?

View answer and explanation

Correct option: D

All of the above

Option D (All of the above) is correct because, based on the reduction potentials, electrons flow from B to A, the EMF is 0.56V, and A is the positive electrode.

NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

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