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(Given : $R =8.3 \,J \,K ^{-1}\, mol ^{-1}$ )
$1.$ The state $S_1$ is
$(A)$ $1 \mathrm{~s}$ $(B)$ $2 \mathrm{~s}$ $(C)$ $2 \mathrm{p}$ $(D)$ $3 \mathrm{~s}$
$2.$ Energy of the state $S_1$ in units of the hydrogen atom ground state energy is
$(A)$ $0.75$ $(B)$ $1.50$ $(C)$ $2.25$ $(D)$ $4.50$
$3.$ The orbital angular momentum quantum number of the state $S_2$ is
$(A)$ $0$ $(B)$ $1$ $(C)$ $2$ $(D)$ $3$
Give the answer question $1,2$ and $3.$
$Ag(s)\,\,|\,\,A{g_2}{C_2}{O_4}(s)\,\,|\,\,{C_2}O_4^{2 - }(0.02\,M)\,\,||\,\,A{g^ + }(0.5\,M)\,\,|\,\,Ag(s)$
$EMF$ of cell is $0.264\ V$ at $25\,^oC$ . $K_{sp}$ of $Ag_2C_2O_4(s)$ is
$\left[ {Given = \frac{{2.303 \times 8.314 \times 298}}{{96500}} = \frac{{2.303RT}}{F} = 0.06,\,\log 2 = 0.3} \right]$