If one hydrogen atom of ammonia
is replaced by R or Ar , we get RNH2 or ArNH2, a primary amine (1o) If two hydrogen atoms of ammonia or one hydrogen atom of R-NH2 are
replaced by another alkyl/aryl(R’) group,  what would you get You
get R-NHR’, secondary amine The second alkyl/aryl group may be
same or different