Which of the following will undergo nucleophilic addition reaction more easily?
Correct answer: A. Aldehyde
- A. Aldehyde
- B. Alkene
- C. Aldehyde & ketone equally
- D. Neither aldehyde nor alkenes
Explanation
Aldehydes undergo nucleophilic addition reactions more easily compared to alkenes and ketones. Nucleophilic addition reactions are characteristic of compounds with a polarized π (pi) bond or a polarized C=O bond. In aldehydes, the carbonyl group (C=O) is directly attached to a hydrogen atom, making the δ+ carbon of the carbonyl group more electrophilic. This polarized C=O bond attracts nucleophiles, which are electron-rich species that can donate an electron pair. Therefore, option a is correct.
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About Aldehydes and Ketones
Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
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