Testing for Cations - Metals :)

Do you know your metal cations in an NaOH solution?

IDENTIFY THE METAL WHICH PROVIDES THE FOLLOWING RESULTS WHEN IN A SODIUM HYDROXIDE SOLUTION...

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1. Which metal produces a blue precipitate in NaOH solution, and stays the same when excess NaOH is added?

  • Iron (II)
  • Copper
  • Aluminium
  • Calcium/Magnesium
  • Iron (III)
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Other questions in this quiz

2. Which metal produces a white precipitate in NaOH solution, and stays the same when excess NaOH is added?

  • Iron (III)
  • Iron (II)
  • Aluminium
  • Calcium/Magnesium
  • Copper

3. Which metal produces a red/brown precipitate in NaOH solution, and stays the same when excess NaOH is added?

  • Copper
  • Iron (III)
  • Aluminium
  • Calcium/Magnesium
  • Iron (II)

4. Which metal produces a white precipitate in NaOH solution, but re-dissolves when excess NaOH is added?

  • Iron (II)
  • Aluminium
  • Iron (III)
  • Copper
  • Calcium/Magnesium

5. Which metal produces a pale green precipitate in NaOH solution, and stays the same when excess NaOH is added?

  • Iron (II)
  • Copper
  • Calcium/Magnesium
  • Aluminium
  • Iron (III)

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