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

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1. after adding sodium hydroxide to a solution and heating gently, a gas is formed which turns damp red litmus paper blue. what is present?

  • magnesium ions (Mg2+)
  • bromine ions (Br-)
  • ammonium ions (NH4+)
  • copper carbonate
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Other questions in this quiz

2. A light green precipitate is formed which slowly turns to brown (looking 'dirty green') after adding sodium hydroxide to a solution. what is present in the solution?

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

3. a white precipitate being formed after adding barium chloride and dilute hydrochloric acid to a solution shows the presents of...

  • halides
  • carbonates
  • sulphates
  • nitrates

4. organic compound burn or char when...

  • heated in air
  • heated in vacuum
  • put in concentrated acid
  • in contact with ammonia

5. a white precipitate is formed after adding dilute nitric acid and silver nitrate to a solution. what is present in the solution?

  • chlorine ions (Cl-)
  • bromine ions (Br-)
  • iodine ions (I-)

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