A) \[C{{H}_{3}}CHO\]
B) \[C{{H}_{3}}COC{{H}_{3}}\]
C) \[{{(C{{H}_{3}})}_{3}}C-CHO\]
D) \[C{{H}_{3}}C{{H}_{2}}CHO\]
Correct Answer: C
Solution :
Aldehydes containing no \[\alpha -H\] atom give Cannizzaros reaction. \[{{(C{{H}_{3}})}_{3}}C-CHO\] does not contain a-H atom, hence it will give Cannizzaro reaction. \[\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{2C{{H}_{3}}-C-CHO+KOH\xrightarrow{\Delta }}}\,}}\,}}\,}}\,\] \[\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C{{H}_{3}}-C-C{{H}_{2}}OH}}\,}}\,}}\,}}\,+\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C{{H}_{3}}-C-COOK}}\,}}\,}}\,\]
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