{"@context":"https://schema.org/","@type":"Quiz","dateCreated":"2022-07-06T10:30:01.201Z","dateModified":"2022-07-06T10:30:01.201Z","typicalAgeRange":"11-18","educationalLevel":"","assesses":"Chemistry - Some Applications of d- and f-Block Elements","educationalAlignment":[{"@type":"AlignmentObject","alignmentType":"educationalTopic","targetName":"Some Applications of d- and f-Block Elements"},{"@type":"AlignmentObject","alignmentType":"educationalSubject","targetName":"Chemistry"},{"@type":"AlignmentObject","alignmentType":"educationalExam","targetName":""}],"name":"Quiz about Some Applications of d- and f-Block Elements","about":{"@type":"Thing","name":"Chemistry - Some Applications of d- and f-Block Elements"},"hasPart":[{"@type":"Question","eduQuestionType":"Multiple choice","learningResourceType":"Practice problem","educationalLevel":"intermediate","name":"Question About Some Applications of d- and f-Block Elements","text":"Mass percentage of deuterium in heavy water is}","encodingFormat":"text/markdown","comment":{"@type":"Comment","text":"\"\""},"suggestedAnswer":[{"@type":"Answer","position":0,"encodingFormat":"text/markdown","text":"

same as that protium in water

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

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

11.1

","comment":{"@type":"Comment","text":"\"\""}},{"@type":"Answer","position":3,"encodingFormat":"text/markdown","text":"

unpredictable

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

","comment":{"@type":"Comment","text":"\"\""},"answerExplanation":{"@type":"comment","text":"Molar mass of $D_2O = 20g \\, mol^{-1}$ . % of D = $\\frac{4 \\times 100}{30} = 20%$"}}}]}

Mass percentage of deuterium in heavy water is

The Correct Option is B

Solution and Explanation