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Acetaldehyde reacts with

1. Electrophiles only
2. Nucleophiles only
3. Free radicals only
4. Both electrophiles and nucleophiles

Correct answer: Both electrophiles and nucleophiles

Solution

Acetaldehyde contains a carbonyl group, which can act as an electrophile due to the partial positive charge on the carbon atom. Additionally, the alpha-hydrogen in acetaldehyde can participate in reactions with electrophiles, making it reactive towards both electrophiles and nucleophiles.

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