In organic chemistry, Fehling's solution (/'feɪlɪŋ/, FAY-ling) is a chemical reagent used to differentiate between water-soluble carbohydrate and ketone (>C=O) functional groups, and as a test for reducing …

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May 23, 2026 · A positive reaction produces a brick-red precipitate of cuprous oxide (Cu₂O). The Fehling test is given by German chemist Hermann von Fehling, who developed this method in the 19th …

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Fehling’s solution, or Fehling’s reagent, is a chemical reagent that is used to distinguish between an aldehyde and a ketone other than α-hydroxy ketone. Practically, it is used for the determination of …

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Apr 18, 2022 · Fehling's test is a chemical test used to differentiate between reducing and non-reducing sugars, distinguish between the presence of aldehydes and ketones.

Jul 23, 2025 · In organic chemistry, Fehling's solution is defined as a chemical reagent that is used to check the presence of aldehyde (-CHO functional group). Fehling's solution acts as a mild oxidizing …

Mar 30, 2026 · Fehling’s test is a chemical analytical test that is used to identify reducing sugars and it is also used to differentiate aldehyde and ketone functional groups.

Fehling’s test was first carried out by the German chemist Hermann von Fehling in 1849. In this test, the heating of aldehyde with Fehling’s reagent/solution is done.