MCQ
Which of the following is most stable carbocation
- A

- B${(C{H_3})_3}\mathop C\limits^ \oplus $
- ✓$C{H_3} - O - \mathop C\limits^ \oplus {H_2}$
- D$C{H_2} = CH - \mathop C\limits^ \oplus {H_2}$

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$\Delta G_{f}^{o}\left(A g_{2} O\right)=-11.21\, kJ\,mol ^{-1}$
$\Delta G_{f}^{o}(Z n O)=-318.3\, kJ \,mol ^{-1}$
Then, $E^{o}$ cell of the button cell is.........$V$
$\begin{array}{*{20}{c}}
{\,\,\,\,\,H} \\
{\,\,\,\,\,\,|} \\
{C{H_3}C{H_2} - N - CHO}
\end{array}$