MCQ
Unknown $(A)$ in the reaction


- ✓

- B

- C

- D








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Given $\left( E _{ Cu ^{2+} / Cu ^{+}}^{0}=0.16 V \right.$ $E _{ Cu ^{+} / Cu }^{0}=0.52 V$$\left.\frac{ RT }{ F }=0.025\right)$
