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A substance is found to contain 7 % nitrogen. The minimum molecular weight of it, is

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A substance is found to contain 7 % nitrogen. The minimum molecular weight of it, is
A. 700
B. 100
C. 200
D. 70
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Correct Answer - C
Atomic weight of nitrogen is 14. If one atom of nitrogen is present in compound, then it should have molecular weight `= (14)/(7)xx100 = 200`
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