A) ethanol and sodium acetate
B) paraldehyde
C) aldol
D) brown resin
Correct Answer: C
Solution :
When two molecules of acetaldehyde are heated with dilute\[NaOH\]solution, aldol is obtained. \[C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ H \end{smallmatrix}}{\mathop{O}}\,=O+HC{{H}_{2}}-\underset{\begin{smallmatrix} | \\ H \end{smallmatrix}}{\mathop{C}}\,=O\]\[\xrightarrow[{}]{dill.\,NaOH}C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ H \end{smallmatrix}}{\mathop{\overset{\begin{smallmatrix} OH \\ | \end{smallmatrix}}{\mathop{C}}\,}}\,=C{{H}_{2}}-\underset{\begin{smallmatrix} | \\ H \end{smallmatrix}}{\mathop{C}}\,=O\]
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