STD 11 - 8.2 Organic chemistry isomerism — NEET STD 11 Science — Question

$\begin{matrix}
   \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O  \\
   \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||  \\
   C{{H}_{3}}-C{{H}_{2}}-C-H  \\
   \Downarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   {{C}_{3}}{{H}_{6}}O\,\,\,\,\,\,\,\,\,\,\,  \\
\end{matrix},\begin{matrix}
   O  \\
   ||  \\
   C{{H}_{3}}-C-C{{H}_{3}}  \\
   \Downarrow   \\
   {{C}_{3}}{{H}_{6}}O  \\
\end{matrix},$ $\begin{matrix}
   C{{H}_{2}}=CH-C{{H}_{2}}OH  \\
   \Downarrow   \\
   {{C}_{3}}{{H}_{6}}O  \\
\end{matrix}$

diff. compounds have same $M.F.$ are isomers.