Engineering
Chemistry
Preparation of Amines
Question
A compound with molecular mass 180 is acylated with CH3COCl to get a compound with molecular mass 390. The number of amino groups present per molecule of the former compound is:
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Solution
Molecular mass of compound = 180
Molecular mass after acetylation = 390
Increases in molecular mass = 210
increase in molecular mass for one –NH2 group is 42 so total 5 amino groups are present.