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Potable Water (GCSE Chemistry)
The following is a GCSE Chemistry test covering 'Potable Water' from the broader topic Using Resources. The test is geared towards the AQA exam board style syllabus.Incorrect: 0
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Question 1
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Which process causes suspended solids to settle out of water after adding a coagulant?
Which test would indicate the presence of harmful coliform bacteria in a drinking water sample?
What is the main purpose of filtration through sand and gravel in a water treatment plant?
Why might a water company use both filtration and chlorination together, rather than only one of these steps?
Why might a water supplier add a small dose of fluoride to drinking water?
What is the main advantage of using UV light for disinfection of potable water?
What is the main reason rainwater collected from clean roofs still often needs treatment before drinking?
Which technology removes dissolved salts and many impurities by forcing water through a semipermeable membrane?
Which action would most reduce the environmental impact of desalination plants?
Which of the following best describes why boiling water makes it safer to drink in an emergency?
Which household test could a consumer use to detect high chloride levels in water?
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