Chemistry Analysis Quiz

Quiz to revise:

  • flame test
  • tests for positive ions
  • tests for negative ions
  • tests for organic compounds
  • pros and cons of instrumental analysis

originally created as a quiz

due to nature of some of the answers this resource isn't ideal for the crossword function

?

1. After adding sodium hydroxide to a solution, a white precipitate is formed which is insoluble in excess sodium hydroxide solution. which two ions could be present?

  • iron (II) and iron (III) ions (Fe2+ and Fe3+)
  • aluminium (Al3+) and magnesium (Mg2+) ions
  • calcium (Ca2+) and magnesium (Mg2+) ions
  • copper (Cu2+) and aluminium (Al3+) ions
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Other questions in this quiz

2. after adding sodium hydroxide to a solution, warming it and adding aluminium powder, ammonia gas is produced. what does this denote the presence of?

  • nitrates
  • halides
  • sulphates
  • carbonates

3. A light blue precipitate is formed after adding sodium hydroxide to a solution. what is present in the solution?

  • iron (II) ions (Fe2+)
  • copper ions (Cu2+)
  • iron (III) ions (Fe3+)

4. After adding sodium hydroxide to a solution, a white precipitate is formed which dissolves in excess sodium hydroxide solution. what is present?

  • magnesium ions (Mg2+)
  • aluminium ions (Al3+)
  • iron (II) ions (Fe2+)
  • calcium ions (Ca2+)

5. A reddish brown precipitate is formed after adding sodium hydroxide to a solution. what is present in the solution?

  • iron (II) ions (Fe2+)
  • iron (III) ions (Fe3+)
  • copper ions (Cu2+)
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