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6. I add sodium hydroxide to a solution and it turns Reddish-Brown. What metal does it contain?

  • Copper
  • Iron (III)
  • Calcium

7. Which two metal ions form white precipitate when you add sodium hydroxide?

  • Calcium, Magnesium
  • Copper, Iron (II)
  • Iron (II), Iron (III)

8. How do you test for Ammonia?

  • It turns red litmus paper blue.
  • It turns blue litmus paper red.
  • It doesn

9. How do you test for carbonates?

  • Add acid and test for CO2.
  • Flame test.
  • Add CO2 and test for acid.

10. Which of these statements is correct?

  • Zinc Carbonate when heated turns from white to yellow.
  • Copper Carbonate when heated turns from black to green.

11. To test for a sulphate, you add dilute HCL and barium chloride solution and a white precipitate of barium sulphate forms.

  • True
  • False

12. Which of these statements is correct when you add dilute nitric acid and silver nitrate solution?

  • Chloride gives a cream precipitate.
  • Iodide gives a yellow precipitate.
  • Bromide gives a white precipitate.

13. The test for Nitrates produces ammonia by adding what...

  • Sodium Hydroxide
  • Carbon Dioxide
  • Dilute HCl

14. Organic substances burn when heated in air.

  • True
  • False

15. What do C=C bonds do to bromine water?

  • Make it colourless.
  • Make it cloudy.
  • Turn it green.