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6. What are the observations for the sulphate reaction?

  • Dissovles
  • Barium sulphate precipitate in a blue solution
  • Barium sulphate precipitate in a colourless solution
  • Fizzes as co2 gas given off

7. What do u add to dissolve the chloride precipitate ?

  • Excess silver nitrate
  • Dilute ammonia
  • Barium nitrate
  • Concentrated ammonia

8. What do you add to a solution to test for sulphate ions?

  • Barium nitrate
  • Barium sulphate
  • Silver sulphate
  • Silver nitrate

9. What do u add to dissolve the bromine preciptate?

  • Excess silver nitare
  • Excess barium nitrate
  • Concentrated ammonia
  • Dilute ammonia

10. How can you tell if you have a ammonium ion in the solution?

  • Hold damp red litmus paper in test tube and it turns blue
  • A recently lit splint will re light when held in the test tube
  • Hold red litmus paper in the test tube and it goes blue
  • Hold blue red litmus paper in the test tube and it goes red