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Benzaldehyde does NOT show positive test with ______. - Chemistry

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Question

Benzaldehyde does NOT show positive test with ______.

Options

  • Schiff reagent

  • Tollens' reagent

  • Sodium bisulphite solution

  • Fehling solution

MCQ
Fill in the Blanks
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Solution

Benzaldehyde does NOT show positive test with Fehling solution.

Explanation:

Benzaldehyde is an aromatic aldehyde. Aromatic aldehydes do not reduce Fehling solution, so the test is negative. But they do give:

  • Schiff test
  • Tollens’ test
  • Sodium bisulphite addition

Therefore, Benzaldehyde does NOT give Fehling’s test.

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Chemical Properties of Aldehydes and Ketones
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Chapter 12: Aldehydes, Ketones and Carboxylic acids - Exercises [Page 280]

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Balbharati Chemistry [English] Standard 12 Maharashtra State Board
Chapter 12 Aldehydes, Ketones and Carboxylic acids
Exercises | Q 1.6 | Page 280

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