" How many isomeric amines possible from "C_(3)H_(9)N" ? "

How many amide isomers are possible for C_(4)H_(9)ON ?

(A) : The number of isomeric amines possible for the formula C_(3)H_(9)N is four (R ): Primary, secondary and tertiary amines are functional isomers

The number of isomeric amines possible for the formula C_(3)H_(9)N

The number of isomeric amines possible for the formula C_(3)H_(9)N

The number of isomeric amines possible for the formula C_(3)H_(9)N

How many secondary amines are possible for C_(5)H_(13)N