Question
Tautomerism is exhibited by

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$\begin{array}{*{20}{c}}
{\,\,\,\,\,C{H_3}\,\,\,\,\,\,\,\,\,}\\
{|\,\,\,\,\,\,\,\,\,\,}\\
{C{H_3} - C - O - C{H_3}}\\
{|\,\,\,\,\,\,\,\,\,\,\,}\\
{\,\,\,\,\,\,\,{\kern 1pt} C{H_3}\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}\,\,$ $\xrightarrow[{(1\,Mole)}]{{HI}}$ Products
The main products of reaction will be
$X$ (Major product) $\xrightarrow{HN{{O}_{3}}+{{H}_{2}}S{{O}_{4}}}Y$ (Major product) $\xrightarrow{Sn\,\,+\,\,HCl}\,Z\,\xrightarrow[S{{O}_{3}}]{}W$
$W$ is