हिंदी

Benzaldehyde does NOT show positive test with ______.

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प्रश्न

Benzaldehyde does NOT show positive test with ______.

विकल्प

  • Schiff reagent

  • Tollens' reagent

  • Sodium bisulphite solution

  • Fehling solution

MCQ
रिक्त स्थान भरें
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उत्तर

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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अध्याय 12: Aldehydes, Ketones and Carboxylic acids - Exercises [पृष्ठ २८०]

APPEARS IN

बालभारती Chemistry [English] Standard 12 Maharashtra State Board
अध्याय 12 Aldehydes, Ketones and Carboxylic acids
Exercises | Q 1.6 | पृष्ठ २८०

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\[\ce{R-CHO + 2Ag(NH_{3})^{+}_{2} + OH^{-}->[\triangle] R-CO{O}^{-} + 2Ag↓ + 4NH3 + 2H2O}\]


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\ce{O}\phantom{........}\\
||\phantom{........}\\
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