A compound with molecular mass

Question:

A compound with molecular mass 180 is acylated with $\mathrm{CH}_{3} \mathrm{COCl}$ to get a compound with molecular mass 390 . The number of amino groups present per molecule of the former compound is :-

  1. 2

  2. 5

  3. 4

  4. 6


Correct Option: , 2

Solution:

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