An alkaloid contains 17.28% of nitrogen ...

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

A

five

B

four

C

three

D

two

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The correct Answer is:

D

100g alkaloid - 17.28 g nitrogen
162 g alkaloid
`=(162xx17.2)/(100)=27.86g` nitrogen
`therefore` No. of nitrogen atoms = `(27.86)/(14)~~2`

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