A) \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}CHO\]
B) \[{{C}_{6}}{{H}_{5}}CHO\]
C) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}CHO\]
D) \[\begin{align} & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O \\ & C{{H}_{3}}-\overset{||}{\mathop{C}}\,-C{{H}_{3}} \\ \end{align}\]
Correct Answer: B
Solution :
Aldehydes which do not have any \[\alpha \]-hydrogen atom when heated with a cone, solution of NaOH undergo a simultaneous oxidation and reduction (disproportionation) forming a salt of carboxylic acid and alcohol called Cannizaro reaction) \[2{{C}_{6}}{{H}_{5}}CHO+NaOH\] \[\xrightarrow[{}]{{}}\] \[\underset{benzyl\,alcohol}{\mathop{{{C}_{6}}{{H}_{5}}C{{H}_{2}}OH}}\,+\underset{sodium\,benzoate}{\mathop{{{C}_{6}}{{H}_{5}}COONa}}\,\]
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