Q: 15 (NDA-II/2014)

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How many grams of MgC03 contain 24-00 g of oxygen? (The molar mass of MgC03 is 84-30 g mol-1)
question_subject: 
Science
question_year: 
2014
question_exam: 
NDA-II
stats: 
0,32,56,32,24,32,0