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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 ion is mainly responsible for temporary hard water that can be removed by boiling?
Which household test could a consumer use to detect high chloride levels in water?
Which technology removes dissolved salts and many impurities by forcing water through a semipermeable membrane?
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?
Which parameter is most directly measured to decide if drinking water is safe from acidity or alkalinity?
Which method is commonly used to disinfect potable water by killing bacteria and viruses?
Why is chlorination still widely used despite the formation of some disinfection by-products?
What is the main reason rainwater collected from clean roofs still often needs treatment before drinking?
Which analytical measurement gives the total dissolved solids (TDS) in a water sample?
What is the main purpose of filtration through sand and gravel in a water treatment plant?
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