An alkaloid contains 17-28% of nitrogen and its molecular mass is 162. The number of nitrogen atoms present in one molecule of alkaloid is :

Options

A. five
B. four
C. three
D. two

Answer

D

Explanation

Amount of N present in 1 mol of alkaloid
` = (162 xx 17.28)/(100)`
no. of N atoms present in 1molecule
` = (162 xx 17.28)/(100 xx 14) = 2 ` approx