MCQ
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- B

- ✓

- D







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when $\underset{(i)}{\mathop{\gamma =C{{H}_{3}}CO_{2}^{-},}}\,\,\,\,\,\,\underset{(ii)}{\mathop{Cl-C{{H}_{2}}-CO_{2}^{-},}}\,\,\,\,\,\,\,\underset{(iii)}{\mathop{Ph-SO_{3}^{-}}}\,$
$Cu^{+2} +e^-\to Cu^+\,\,\,\,\,E^o = 0.15\,volt$
$Cu^{+2} + 2e^-\to Cu\,\,\,\,\,E^o = 0.34\, volt$
What will be the $E^o$ for half cell
$Cu^+ + e^-\to Cu$ ? ........... $\mathrm{volt}$