Fehling's test (Cu²⁺ → Cu₂O) for aliphatic aldehydes (Aldehyde oxidized; cupric tartrate complex gives brick-red Cu₂O)
jee-mainjee-advancedneet-ug
Aldehyde oxidized; cupric tartrate complex gives brick-red Cu₂O
What each symbol means
| Symbol | What it stands for |
|---|---|
| RCHO | Usually aliphatic aldehyde in standard JEE discrimination |
When to use this
Basic tartrate-complexed Cu²⁺; heat; brick-red precipitate; benzaldehyde often does NOT reduce Fehling in many textbook comparisons.