A) butan-1, 2-diol
B) butan-1-ol
C) butan-2-ol
D) butan-2-one
Correct Answer: D
Solution :
\[\underset{1-butyne}{\mathop{C{{H}_{3}}C{{H}_{2}}C\equiv CH}}\,+{{H}_{2}}O\xrightarrow[{}]{HgS{{O}_{4}}/{{H}_{2}}S{{O}_{4}}}\] \[C{{H}_{3}}C{{H}_{2}}\overset{\begin{smallmatrix} OH \\ | \end{smallmatrix}}{\mathop{C}}\,=C{{H}_{2}}\xrightarrow[{}]{+{{H}_{2}}O}\underset{(unstable)}{\mathop{C{{H}_{3}}C{{H}_{2}}-\underset{\begin{smallmatrix} | \\ OH \end{smallmatrix}}{\overset{\begin{smallmatrix} OH \\ | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{3}}}}\,\] \[\xrightarrow[{}]{-{{H}_{2}}O}\underset{butan-2-one}{\mathop{C{{H}_{3}}C{{H}_{2}}-\underset{\begin{smallmatrix} |\,| \\ O \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}}}\,\]
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