Tests and colours #1

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1. what must be present if you hear a squeaky pop when you putt a lighted splint by it

  • chlorine
  • oxygen
  • hydrogen
  • chloride ion
  • alkene
  • bromide ion
  • iodide ion
  • phenol
  • carbon dioxide
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2. what forms a white precipitate when you add silver nitrate

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

3. reagent to test for a bromide ions

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

4. positive result when testing for carbon dioxide

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

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

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

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