JEE Main · ChemistryMedium
Which compound is most reactive towards nucleophilic addition?
- A.
- B.
- C.
- D.
Show correct answer & step-by-step solution
Correct answer: B —
Solution
- Nucleophilic addition reactivity decreases with increasing steric hindrance around the carbonyl carbon.
- Reactivity also decreases with increasing electron-donating groups attached to the carbonyl carbon.
- Acetaldehyde has only one methyl group and one hydrogen atom, providing minimal steric hindrance.
- Acetone and acetophenone have more bulky groups, and benzaldehyde has resonance stabilization from the phenyl ring.
- Hence the answer is (B).
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