A) aldol condensation
B) Tischenko reaction
C) Cannizaro reaction
D) Reimer Tiemann reaction
Correct Answer: C
Solution :
Key Idea: Define all reactions to find correct answer. (i) Aldol condensation: carbonyl compound which have \[\alpha -H\]atom \[+\,NaOH\]\[\xrightarrow{{}}\beta -\] hydroxy carbonyl compound (ii) Reimer Tiemann reaction: \[\text{Phenol}\,\text{+}\,\text{CC}{{\text{l}}_{4}}+NaOH\xrightarrow{{}}\text{Salicylic}\,\text{acid}\] (iii) cannizaro reaction: \[\underset{\begin{smallmatrix} \,\,\,\,\text{which}\,\text{do}\,\text{not} \\ \,\,\text{have}\,\alpha -H\,\text{atom} \end{smallmatrix}}{\mathop{Alehydes}}\,\,+\,NaOH\xrightarrow{{}}alcohol+acid\] eg., \[\underset{\text{formalehyde}}{\mathop{\text{2HCHO}}}\,\xrightarrow{\text{50 }\!\!%\!\!\text{ }\,\text{NaOH}}\] \[\underset{\text{methanal}}{\mathop{C{{H}_{3}}OH}}\,+\underset{\text{sodium}\,\text{formate}}{\mathop{HCOONa}}\,\]
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