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In which type of chromatography four modes viz, Absorption, partition, Ion exchange and exclusion, are present ?

  • A.HPLC
  • B.Liquid-liquid chromatography
  • C.Ion-exchange chromatography
  • D.Adsorption chromatography

Answer: A

The key gives HPLC, which can be run in the four modes of adsorption, partition, ion exchange and exclusion. Liquid-liquid, ion-exchange and adsorption chromatography are each a single mode. So the type that includes all four modes is HPLC.

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