Which of the following aldehyde is most reactive:
Correct answer: A. HCHO
- A. HCHO
- B. CH3CHO
- C. C6H5CHO
- D. All of above
Explanation
Indeed, formaldehyde is highly reactive due to its electrophilic nature, especially in the presence of compounds that can donate electrons. This reactivity is amplified when it possesses two withdrawing groups, such as hydrogen atoms, making it more susceptible to various chemical reactions with substances like strong oxidizing agents, ammonia, strong alkalis, isocyanates, peracids, anhydrides, and inorganic acids.
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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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