
- AThe molecule is planar
- B$8$ number of angles of the type $\theta_2$ are present
- ✓$\theta_3 > \theta_1 > \theta_2$
- DTotal $4$ unshared lone pairs are present

$\begin{array}{*{20}{c}}
{\begin{array}{*{20}{c}}
{O\,\,\,\,\,\,\,O} \\
{||\,\,\,\,\,\,\,\,\,||}
\end{array}} \\
{{O^\Theta } - S - S - {O^\Theta }} \\
{||\,\,\,\,\,\,\,\,} \\
{O\,\,\,\,\,\,}
\end{array}$
$S_2O_8^{-2}$
$\begin{array}{*{20}{c}}
{\begin{array}{*{20}{c}}
{O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O} \\
{||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||}
\end{array}} \\
{{O^\Theta } - S - O - O - S - {O^\Theta }} \\
{||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||} \\
{O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O}
\end{array}$
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$(A)$ $Q = KNO _2, W = LiAlH _4$
$(B)$ $R =$ benzenamine, $V = KCN$
$(C)$ $Q = AgNO _2, R =$ phenylmethanamine
$(D)$ $W = LiAlH _4, V = AgCN$