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Observations CCEA (Halogens (iodine (solid (grey-black), vapour (purple),…

- - - - green gas
    - - green
  - - - red-brown liquid
    - - orange
  - - - grey-black
    - - purple
    - - yellow: polar solvents purple: non-polar solvents
- - - - non-smoky= complete combustion + low carbon content
      - smoky= incomplete combustion + high carbon content
    - - w/ sodium = fizzing, heat, solid disappears
    - - primary + secondary alcohols with acidified potassium dichromate (VI) solution from orange to green when heated
- - - - yellow to red
    - - red to yellow
  - - - pink to colourless
    - - colourless to pink
- - - - misty fumes of HF
    - - misty fumes of HBr
    - - misty fumes of HI
    - - misty fumes of HCl
  - - - misty fumes of HF
    - - misty fumes of HBr red-brown vapour
    - - misty fumes of HI, purple vapour of I2, smell of rotten eggs, yellow solid of S grey-black solid I2
    - - misty fumes of HCl