Tests and colours #1

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1. positive result when testing for an iodide ion

  • turns from orange to purple
  • litmus paper gets bleached
  • it turns cloudy
  • you hear a squeaky pop
  • cream precipitate
  • white precipitate
  • yellow precipitate
  • splint relights
  • turns from orange to colourless
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2. what must be present if you hear a squeaky pop when you putt a lighted splint by it

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

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

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

4. positive result when testing for a chloride ion

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

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

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

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