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Question

Acetaldehyde undergoes reaction in the presence of dil. NaOH to give
  1. Ethyl acetate
  2. Butanoic acid
  3. Acetic acid
  4. 3-Hydroxy butanal

A
Ethyl acetate
B
Butanoic acid
C
Acetic acid
D
3-Hydroxy butanal
Solution
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Acetaldehyde (A) reacts with NaOH undergoes aldol condensation forming beta-hydroxyacetaldehyde on heating gives alpha-beta-unsaturated aldehyde(C)

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