Complete chemistry C3 quiz

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  • Created by: hannahb
  • Created on: 26-04-16 18:22

1. If you add sodium hydroxide when testing for metal ions, a white precipitate forms, but then redissolves, what ion is present?

  • Aluminium 3+
  • Calcium 2+
  • Ammonia 1-
  • Copper 2+
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2. What happens to Halogens (Group 7) as you go down the group?

  • The get less reactive
  • They get more reactive
  • Nothing
  • They get lighter in colour and more volatile

3. What happens if you have a flammable vapour and a naked flame?

  • A flash fire
  • The air can burn
  • A chemical reaction
  • An explosion

4. Methylated spirit/Meths is ethanol with other chemicals added. It is posionous but colourless, so how do we make sure people don't drink it?

  • A plasticy smell
  • Purply-blue dye
  • Red/orange dye
  • A strong burnt, smell

5. What does the group number of an atom represent?

  • The number of electrons on their outer shell/energy level
  • The proton number
  • Relative atomic mass of the atom
  • The number of days for the nuclei to decay
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