1. Tardigrade
  2. Question
  3. Chemistry
  4. The reddish brown precipitate formed in the Fehling’s test for aldehydes (RCHO) is due to the formation of

Q. The reddish brown precipitate formed in the Fehling’s test for aldehydes is due to the formation of

 2318  216 KVPYKVPY 2017Aldehydes Ketones and Carboxylic Acids Report Error

Solution:

Fehling’s reagent is a mixture of aqueous copper sulphate and alkaline sodium potassium tartarate. When an aldehyde is heated with Fehling’s reagent a reddish brown precipitate is obtained and the aldehydes are oxidised to corresponding carboxylate anion. This reddish brown precipitate is due to the formation of copper oxide.
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