Questions and Answers
What is the purpose of adding fluorine to water?
To strengthen teeth and prevent decay
What is the process by which suspended particles settle to the bottom of a tank?
Sedimentation
What is the process of removing ions from water using a cation exchange resin?
Deionisation
What is the purpose of adding lime (Ca(OH)2) to water?
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What is the process of coming together of small suspended solids in water?
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What is the purpose of adding chlorine to water?
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What is the primary difference between temporary and permanent hardness?
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Which of the following is NOT a method of removing suspended solids from water?
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What is the purpose of adding Na+ ions in the ion exchange process?
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Which of the following is an example of a permanent hardness-causing ion?
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