Tests and colours #1

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1. positive result when testing for an alkene

  • turns from orange to colourless
  • cream precipitate
  • litmus paper gets bleached
  • splint relights
  • yellow precipitate
  • turns from orange to purple
  • you hear a squeaky pop
  • white precipitate
  • it turns cloudy
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2. positive result when testing for a phenol

  • white precipitate
  • splint relights
  • it turns cloudy
  • turns from orange to purple
  • yellow precipitate
  • cream precipitate
  • litmus paper gets bleached
  • turns from orange to colourless
  • you hear a squeaky pop

3. reagent to test for a bromide ions

  • Damp blue litmus paper
  • limewater
  • Neutral iron(III)chloride solution
  • Bromine water
  • lighted splint
  • Silver nitrate solution
  • glowing splint

4. what are you testing for if you make a glowing splint relight

  • chloride ion
  • hydrogen
  • phenol
  • alkene
  • bromide ion
  • iodide ion
  • oxygen
  • chlorine
  • carbon dioxide

5. what forms a cream precipitate when you add silver nitrate

  • chloride ion
  • oxygen
  • bromide ion
  • phenol
  • hydrogen
  • alkene
  • carbon dioxide
  • chlorine
  • iodide ion

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