Caffeine has a molecular weight of 194 . It contains about 30% by mass of nitrogen. The number of atoms of nitrogen in one molecule of it is :
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Caffeine has a molecular weight of 194 . It contains about 30% by mass of nitrogen. The number of atoms of nitrogen in one molecule of it is :

Caffeine has a molecular weight of 194 . It contains about 30% by mass of nitrogen. The number of atoms of nitrogen in one molecule of it is :
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Caffine has a molecular weight of 194 . It contains about $30 \%$ by mass of nitrogen. The number of atoms of nitrogen in one molecule of it is :

(A) 2

(B) 3

(C) 4

(D) 5

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The number of atoms of nitrogen in one molecule of it is 4 (Four). So, The correct option of this question is (C).

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