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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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Which process causes suspended solids to settle out of water after adding a coagulant?
Which method is commonly used to disinfect potable water by killing bacteria and viruses?
What is the correct definition of potable water?
Why might a water supplier add a small dose of fluoride to drinking water?
Which parameter is most directly measured to decide if drinking water is safe from acidity or alkalinity?
Which ion is mainly responsible for temporary hard water that can be removed by boiling?
What is the main purpose of screening during water treatment at a waterworks?
What is the main purpose of filtration through sand and gravel in a water treatment plant?
A supplier finds nitrate (NO3-) concentration above safe levels in groundwater used for drinking. Which is the main health concern?
Which treatment step is most important specifically to remove dissolved iron and manganese that cause staining and taste issues?
Which technology removes dissolved salts and many impurities by forcing water through a semipermeable membrane?
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