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What observation is made when a sample of ethanol is heated with Fehling's reagent? - Leaving Cert Chemistry - Question (g) - 2006
Question (g)
What observation is made when a sample of ethanol is heated with Fehling's reagent?
Worked Solution & Example Answer:What observation is made when a sample of ethanol is heated with Fehling's reagent? - Leaving Cert Chemistry - Question (g) - 2006
Step 1
Observation when ethanol is heated with Fehling's reagent
Answer
When a sample of ethanol is heated with Fehling's reagent, a brick-red precipitate is produced. This is due to the reduction of copper(II) ions present in Fehling's solution to copper(I) oxide, which appears as a brick-red solid.