A compound with molecular mass 180 is acylated with `CH_(3)COCl` to get a compound with molecular mass 390. the number of amino groups present per molecule of the former compound is-

A compound with molecular mass 180 is acylated with CH_3COCl to get a compound with molecular mass 390. The number of amino groups present per molecule of the former compound is

An organic compound (P) having molecular mass 180 is acylated with CH_(3)COCl to get a new compound with molecular mass 348. The number of amino groups present per molecule of compound (P) is