
- A

- ✓

- C

- D








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$\begin{array}{*{20}{c}} {C{H_2}OH} \\ {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ {C{H_2}OH} \end{array}$ $+$ oxalic acid $\xrightarrow{{{{210}^o}C}}$ $\quad\quad X$
$\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad$(major product)
$\mathrm{Cu}_{(\mathrm{s})}+2 \mathrm{Ag}^{+}\left(1 \times 10^{-3} \,\mathrm{M}\right) \rightarrow \mathrm{Cu}^{2+}(0.250\, \mathrm{M})+2 \mathrm{Ag}_{(\mathrm{s})}$
$\mathrm{E}_{\mathrm{Cell}}^{\ominus}=2.97\, \mathrm{~V}$
$\mathrm{E}_{\text {cell }}$ for the above reaction is $....\,V.$ (Nearest integer)
[Given : $\log 2.5=0.3979, T=298\, \mathrm{~K}]$


$Pt|H_2(P_1\ atm)\ | \ H^+(x_1M)\ ||\ H^+(x_2M)\ |\ H_2(P_2\ atm)\ |Pt$ .
The cell reaction will be spontaneous if