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6. What indicator should be used with a strong acid and a weak alkali?

  • Methyl Orange
  • Phenolphalein
  • Both

7. Solubility of Gases increases as...

  • Both Increase
  • Pressure Increases
  • Temperature Increases

8. Soft water readily forms a lather with soap

  • True
  • False

9. Which is not a way of making hard water soft?

  • Adding sodium carbonate
  • evaporation
  • ion exchange column
  • distillation

10. An exothermic reaction is one which

  • more energy is released from forming new bonds
  • more energy is released from breaking existing bonds
  • more energy is taken in from forming new bonds

11. Which form of instrumental analysis cannot be used to identify compounds?

  • atom absorption spectrometry
  • mass spectrometry
  • infred spectrometry

12. Calcium produces what coloured flame in a flame test?

  • brick red
  • blue
  • lilac
  • green