{"@context":"https://schema.org/","@type":"Quiz","dateCreated":"2026-05-31T17:51:36.369Z","dateModified":"2026-05-31T17:51:36.369Z","typicalAgeRange":"11-18","educationalLevel":"AP EAPCET","assesses":"Chemistry - water","educationalAlignment":[{"@type":"AlignmentObject","alignmentType":"educationalTopic","targetName":"water"},{"@type":"AlignmentObject","alignmentType":"educationalSubject","targetName":"Chemistry"},{"@type":"AlignmentObject","alignmentType":"educationalExam","targetName":"AP EAPCET"}],"name":"Quiz about water","about":{"@type":"Thing","name":"Chemistry - water"},"hasPart":[{"@type":"Question","eduQuestionType":"Multiple choice","learningResourceType":"Practice problem","educationalLevel":"intermediate","name":"Question About water","text":"Temporary hardness of water is due to the presence of}","encodingFormat":"text/markdown","comment":{"@type":"Comment","text":"Remember that temporary hardness can be removed by boiling because the bicarbonates decompose into carbon dioxide gas, calcium or magnesium hydroxides, and sodium chloride."},"suggestedAnswer":[{"@type":"Answer","position":0,"encodingFormat":"text/markdown","text":"

Calcium and magnesium bicarbonates

","comment":{"@type":"Comment","text":"\"\""}},{"@type":"Answer","position":1,"encodingFormat":"text/markdown","text":"

Calcium and magnesium chlorides

","comment":{"@type":"Comment","text":"\"\""}},{"@type":"Answer","position":2,"encodingFormat":"text/markdown","text":"

Calcium and magnesium sulphates

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Sodium carbonate
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Calcium and magnesium bicarbonates

","comment":{"@type":"Comment","text":"Remember that temporary hardness can be removed by boiling because the bicarbonates decompose into carbon dioxide gas, calcium or magnesium hydroxides, and sodium chloride."},"answerExplanation":{"@type":"comment","text":""}}}]}

Temporary hardness of water is due to the presence of

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