Which of the following is NOT correct test for the named organic compound in each case?

• A.Butanoic acid solution gives effervescence with Na₂CO₃ solution
• B.Glucose when reacted with Na₂CrO₄ at 0°C will show immediate discharge of colour
• C.When but-2-ene is reacted with dilute solution of KMnO₄ the purple colour of KMnO is discharged readily even room temperature
• D.When butan-2-ol is boiled with butanoic acid with a drop of concentrated H₂SO₄ a sweet smelling liquid is produced
• E.