Water Treatment
10 past-paper questions on Water Treatment · examined 2020–2025.
20254 questions
Chlorine and carbon are both used in the treatment of the domestic water supply. Which row describes one reason for the use of each substance?
Water may contain many substances before it is purified for drinking. Which substances are removed by the treatment of the domestic water supply?
Water may contain many substances before it is purified for drinking. Which substances are removed by the treatment of the domestic water supply?
The domestic water supply is treated before it is supplied to houses. Three treatments are listed. Which row shows the purpose of the treatments?
20243 questions
The domestic water supply is treated to make it safe to drink. Which row identifies the treatment and its effect?
State which substance removes tastes and odours during the treatment of the domestic water supply.
State which substance kills microbes during the treatment of the domestic water supply.
20231 question
Which statement about natural sources of water and the domestic water supply is correct?
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