The concentration of the para aminoacetanilide is determined by {TAIL ~ a color test} in which {HEAD ~ the para aminoacetanilide} was reacted with phenol 
in
The concentration of the para aminoacetanilide is determined by { TAIL ~ a color test } in which { HEAD ~ the para aminoacetanilide } was reacted with phenol
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL REL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH