Question

Reaction of propanol with cu in the presence of fehling solution

Answer 1

The net reaction between an aldehyde and the copper(II) ions in Fehling's solution may be written as: RCHO + 2 Cu2+ + 5 OH− → RCOO− + Cu2O + 3 H2O. ... RCHO + 2 Cu(C4H4O6)22− + 5 OH− → RCOO− + Cu2O + 4 C4H4O62− + 3 H2O.

Answer 2

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The reaction is carried out using two separate solutions, ... When combined, a copper II tartrate complex is formed ... The presence of this indicates a positive test.