Coordination Compounds — Chemistry STD 12 Science — Question

$Ag(s)\,\,|\,\,A{g_2}{C_2}{O_4}(s)\,\,|\,\,{C_2}O_4^{2 - }(0.02\,M)\,\,||\,\,A{g^ + }(0.5\,M)\,\,|\,\,Ag(s)$

$EMF$ of cell is $0.264\ V$ at $25\,^oC$ . $K_{sp}$ of $Ag_2C_2O_4(s)$ is

$\left[ {Given = \frac{{2.303 \times 8.314 \times 298}}{{96500}} = \frac{{2.303RT}}{F} = 0.06,\,\log 2 = 0.3} \right]$

 $\begin{array}{|l|l|l|l|} \hline & Column\,I & & Column\,II \\ & (Reduction\,process) & & (Charge\,required) \\ \hline (a) & 1\,mol\,of\,MnO_4^-\,to\,Mn^{2+} & (p) & 193000\,\,C \\ \hline (b) & 1\,\,mole\,of\,Cr_2O_7^{2-}\,to\,Cr^{3+} & (q) & 289500\,\,C \\ \hline (c) & 1\,\,mole\,of\,Sn^{4+}\,to\,Sn^{2+} & (r) & 482500\,\,C \\ \hline (d) & 1\,mole\,of\,Al^{3+}\,to\,Al & (s) & 579000\,\,C \\ \hline \end{array}$

$(I)$ Only $C$ react with $0.10\, M\, HCl$ to give $H_2(g)$

$(II)$ When $A$ is added to solution of the other metal ions, metallic $D$ is formed but not $B$ or $C$

$W + {O_2}\, \rightleftharpoons X$

$X + {H_2O}\, \rightleftharpoons Y + W$

correct statement is

${C_6}{H_5} - COO - C{H_3}\mathop {\xrightarrow{{1.\,LiAl{H_4}}}}\limits_{2.\,{H_2}O} $