Question

Aldol condensation will not take place in

• A. $HCHO$
• B. $CH_3 CHO$
• C. $CH_3 COCH_3$
• D. $CH_3 CH_2 CHO$

Answer 1

Answer: (A)

$HCHO$

Answer 2

Aldol condensation in aldehydes is due to presence of a-hydrogen atoms. Those aldehydes which does not have a-hydrogen atom like HCHO, does not give aldol condensation reaction.