Chemistry 5070 · O Level · Water

Water — practice question

Chlorine and carbon are both used to treat the domestic water supply. Which row describes one reason for using each substance?

  • Achlorine: causes the sedimentation of some solids; carbon: removes tastes from the water
  • Bchlorine: causes the sedimentation of some solids; carbon: removes dissolved oxygen from the water
  • Cchlorine: kills some microbes; carbon: removes tastes from the water
  • Dchlorine: kills some microbes; carbon: removes dissolved oxygen from the water

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