Chemistry · May / June 2025 · Paper 11 · Question 29
5070Water
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?
- Acauses the sedimentation of some solids; removes tastes from the water
- Bcauses the sedimentation of some solids; removes dissolved oxygen from the water
- Ckills some microbes; removes tastes from the water
- Dkills some microbes; removes dissolved oxygen from the water
As printed in the paper
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Correct answer: C. kills some microbes; removes tastes from the water
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