Tests and colours #1

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1. What species tuns from orange to purple when you add neutral iron(III)chloride

  • bromide ion
  • alkene
  • oxygen
  • carbon dioxide
  • iodide ion
  • chlorine
  • phenol
  • chloride ion
  • hydrogen
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2. what are you testing for if you make a glowing splint relight

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

3. positive result when testing for oxygen

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

4. what makes limewater go cloudy

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

5. reagent to test for a chloride ion

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

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