Question
Chemistry Question on Classification Of Organic Compounds
Which of the following has highly acidic hydrogen?
A
B
C
D
Answer
Explanation
Solution
In structure (4), the methylene group (CH2) between two carbonyl groups (C=O) is highly acidic due to the resonance stabilization of the conjugate base. When the hydrogen is removed, the negative charge on the carbon is delocalized between the two carbonyl groups, making the conjugate base more stable. This increased resonance makes the hydrogen highly acidic.