Question

Which among the following compounds does NOT undergo aldol condensation?

विकल्प

• Formaldehyde

• Butyraldehyde

• Acetaldehyde

• Propionaldehyde

Answer 1

Formaldehyde

Explanation:

Presence of α-Hydrogen is required for aldol condensation.

\[\begin{array}{cc}
\ce{O}\phantom{..........}\\
||\phantom{..........}\\
\ce{Formaldehyde - H - C - H has no α - Hydrogen in it.}\end{array}\]