Other questions in this quiz

2. How do you do a flame test?

  • Clean a nichrome wire in dilute HCl, dip it into the sample solution/powder, hold it at edge of Bunsen flame, observe flame colour
  • Set a small amount of the sample substance on fire and observe flame colour
  • Dip Nichrome wire into sample substance, hold in middle of Bunsen flame, observe flame color
  • Roll Nichrome wire in sample substance, hold near Bunsen flame, observe colour change

3. What colour is Al3+ and Ca2+'s precipitate?

  • Green
  • Brown
  • White
  • Blue

4. What colour is Fe3+'s precipitate?

  • Brown
  • Blue
  • White
  • Green

5. What colour is I-'s precipitate?

  • Orange
  • White
  • Yellow
  • Cream

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