Chemistry 5070 · O Level · Identification of ions and gases

Identification of ions and gases — practice question

Which row shows the right tests for identifying both ammonia and sulfur dioxide?

  • Aammonia: damp blue litmus paper; sulfur dioxide: acidified potassium manganate(VII)
  • Bammonia: damp blue litmus paper; sulfur dioxide: damp red litmus paper
  • Cammonia: damp red litmus paper; sulfur dioxide: acidified potassium manganate(VII)
  • Dammonia: damp red litmus paper; sulfur dioxide: damp blue litmus paper

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