STANDARDChemistry-Aldehydes and Ketones
STANDARD Chemistry Aldol Condensation MCQ Question
Type: MCQ-conceptual-Medium
Aldehydes that do not undergo aldol condensation are (1) propanal (2) trichloroethanal (3) 2-phenylethanal (4) ethanal (5) benzaldehyde
A
3 and 4 only
B
2 and 5 only
C
1, 2 and 3 only
D
2, 3 and 5 only
Correct Answer
Option B
Detailed Explanation
Aldehydes without α-hydrogen do not undergo aldol condensation. Trichloroethanal and benzaldehyde lack α-hydrogen.
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