Tests and colours #1

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1. positive result when testing for a phenol

  • litmus paper gets bleached
  • cream precipitate
  • turns from orange to colourless
  • splint relights
  • it turns cloudy
  • turns from orange to purple
  • white precipitate
  • you hear a squeaky pop
  • yellow precipitate
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2. reagent to test for carbon dioxide

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

3. What species turns from orange to colourless when you add bromine water?

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

4. reagent to test for oxygen

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

5. reagent to test for hydrogen

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

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