Organic analysis

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Created by
Heather ward

Cards (5)

  • What is the functional group test for primary and secondary alcohols and aldehydes
    Add acidified potassium dichromate. It turns from orange to green.
  • What is the functional group for aldehydes?
    Add tollens regaent and warm gently It will turn from colourless to a silver mirror.Or Add fehlings solution and warm.It will turn from blue to brick red precipitate.
  • What is the functional group test for alkenes?
    Add bromine water.It will change from orange/brown to colourless.
  • What is the functional group test for carboxylic acids?
    Add sodium carbonate.Bubble the produced gas through limewater.It will turn cloudy.
  • Describe the technique of infrared spectroscopy
    Certain groups in a molecule absorb IR radiation at characteristic frequencies
    Complicated spectra can be obtained that provide information about the bonds present