question_answer

Which of the following oxidation reactions can be carried out with chromic acid in aqueous acetone at \[5-{{10}^{o}}C\] [Roorkee Qualifying 1998]

A) \[C{{H}_{3}}{{(C{{H}_{2}})}_{3}}C\equiv C-\underset{\underset{OH}{\mathop{|}}\,}{\mathop{CH}}\,-C{{H}_{3}}\to \] \[C{{H}_{3}}{{(C{{H}_{2}})}_{3}}C\equiv \overset{\begin{smallmatrix}  O \\  |\,\,| \end{smallmatrix}}{\mathop{C}}\,-C-C{{H}_{3}}\]

B) \[C{{H}_{3}}{{(C{{H}_{2}})}_{3}}CH=CH-C{{H}_{2}}OH\to \]\[C{{H}_{3}}{{(C{{H}_{2}})}_{3}}CH=CH-CHO\]

C) \[{{C}_{6}}{{H}_{5}}C{{H}_{3}}\to {{C}_{6}}{{H}_{5}}COOH\]

D) \[C{{H}_{3}}{{(C{{H}_{2}})}_{3}}C{{H}_{2}}OH\to C{{H}_{3}}{{(C{{H}_{2}})}_{3}}CHO\]