In Benedict's solution test, aldehydes produce brick red color by reducing
Correct answer: D. Copper ions
- A. Silver ions
- B. tartarate ions
- C. Citrate ions
- D. Copper ions
Explanation
Bendict's solution is a blue solution that contains Cu2+ ions. When aldehydes are added to the solution, the aldehydes reduce the Cu2+ ions to Cu+ ions. The Cu+ ions precipitate out of the solution as a brick-red precipitate.
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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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