question_answer
\[C{{H}_{3}}-\underset{C{{H}_{3}}}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-Br+C{{H}_{3}}C{{H}_{2}}OH\xrightarrow{C{{H}_{3}}C{{H}_{2}}OH}A\,(major)\]\[\xrightarrow[C{{H}_{3}}C{{H}_{2}}OH]{C{{H}_{3}}C{{H}_{2}}ONa}\,B\,(major)\] Possible products can be\[\begin{align} & C{{H}_{3}}\underset{C{{H}_{3}}}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{CO}}}\,}}}\,C{{H}_{2}}C{{H}_{3}}\,\,\,\,C{{H}_{3}}-\underset{C{{H}_{2}}}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\, \\ & \,\,\,\,\,\,\,\,\,\,\,\begin{matrix} I & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,II \\ \end{matrix} \\ \end{align}\]A and 5 can be respectively