MCQ
What is the product of the aldol condensation of acetaldehyde?
Chemistry
A Ethyl acetate
B 3-Hydroxybutanal (aldol)
C Butanal
D Ethanol
Explanation

Two molecules of acetaldehyde undergo aldol condensation: one acts as a nucleophile (enolate) attacking the carbonyl of another, forming 3-hydroxybutanal.