Given below is an approximate composition of a substance: Ca0-60-70% Si02-20-25% Al20-5-10% Fe203-2-3% The substance is

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Q: 84 (NDA-II/2012)
Given below is an approximate composition of a substance: Ca0-60-70% Si02-20-25% Al20-5-10% Fe203-2-3% The substance is
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question_subject: 

Science

question_exam: 

NDA-II

stats: 

0,4,7,5,4,2,0

keywords: 

{'approximate composition': [0, 0, 0, 1], 'plaster': [0, 0, 1, 0], 'cement': [0, 0, 1, 4], 'quartz': [0, 0, 0, 1], 'substance': [2, 1, 7, 7], 'marble stone': [0, 0, 0, 1], 'ca0': [0, 0, 0, 1]}