An alkaloid contains 17.28% of nitrogen and its molecular mass is 162. The number of nitrogen atoms present in one molecule of alkaloids as _____
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An alkaloid contains 17.28% of nitrogen and its molecular mass is 162. The number of nitrogen atoms present in one molecule of alkaloids as _____

(a) Five

(b) Four

(c) Three

(d) Two

1 Answer

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Best answer

Answer : Here, The correct answer of this question will be option (D) Two.

Explanation :

$100 g$ of alkaloid contain nitrogen $=17.28 g$

$162 g$ of alkaloid contian introgen $=\frac{17.28 \times 162}{100}=27.99=28 g$

or one mole of alkaloid contain $28 g$ nitrogen or $\frac{28}{14}=2 g$ atoms of nitrogen

$\therefore$ Number of nitrogen atoms in molecule of alkaloid $=2$

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