Chemistry 0620 · IGCSE · Water

Water — practice question

River water includes soluble impurities, insoluble impurities and bacteria. It is treated by filtration and chlorination so that it becomes safe for drinking. Which statement is correct?

  • AFiltration removes bacteria and insoluble impurities, and chlorination removes soluble impurities.
  • BFiltration removes insoluble impurities, and chlorination kills the bacteria.
  • CFiltration removes soluble and insoluble impurities, and chlorination kills the bacteria.
  • DFiltration removes soluble impurities and bacteria, and chlorination removes insoluble impurities.

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