Tests for halogens

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Warm with aqueous sodium/potassium hydroxide.Acidify with dilute nitric acid.Add aqueous silver nitrate:

White precipitate

  • C--Cl

Cream precipitate

  • C--Br

Yellow precipitate

  • C--I

Displacement reactions with Potassium halides, and reaction with hexane:

Chlorine water- colourless

  • No reaction with Potassium chloride solution
  • An orange solution (Br2) formed when reacted with Potassium

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