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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.
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.
15. What do C=C bonds do to bromine water?
- Make it colourless.
- Make it cloudy.
- Turn it green.