Other questions in this quiz

2. Which ions all form white precipitates when in hydroxide form?

  • Iron, zinc and copper
  • Magnesium, barium and sodium
  • Aluminium, magnesium and calcium
  • Aluminium, calcium and potassium

3. How can you record retention times?

  • A magnetic current detector that attaches to individual molecules
  • The individual compounds travel at different speeds through the column and it records how much left the column in how long
  • An electric current detector that attaches to individual molecules
  • Add methane to the column and see how fast they leave the column

4. What colour does potassium go in a flame test?

  • White
  • Lilac
  • Yellow
  • Blue

5. Give some benefits of modern instrumental methods

  • More sensitive, more accurate
  • Quicker, more sensitive, more accurate, tiny samples can be tested
  • Cheaper, tiny samples can be tested
  • Cheaper, more sensitive and tiny samples can be tested

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