Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Passage: Kei roto i te paracetamol he matua mowhiti benzene, ka whakakapihia e tetahi roopu hydroxyl me te ngota hauota o te roopu amide i te tauira para (1,4). Ko te rōpū amide ko te acetamide (ethanamide). He punaha whakakotahitanga nui, na te mea kotahi te takirua takitahi i runga i te hāora hydroxyl, te kapua pi benzene, te takirua takitahi o te hauota, te p orbital i runga i te waro carbonyl, me te takirua takitahi i runga i te hāora carbonyl kua whakakotahitia katoa. Ko te aroaro o nga roopu whakahohe e rua ka tino kaha te mowhiti benzene ki te whakakapi kakara electrophilic. I te mea he orto, para-directing me te para te hunga whakakapi ki a raatau ano, ko nga tuunga katoa o te mowhiti he nui ake, he iti ake ranei te whakahohe. Ka tino whakaitihia e te whakakotahitanga te putake o nga hāora me te hauota, i te wa e hanga ana i te waikawa hydroxyl na roto i te whakakorenga o te utu i whakawhanakehia i runga i te anion phenoxide.  Patai: He aha te mea e tino kaha ai te hurihanga o te penehini?
te aroaro o ngā rōpū whakahohe e rua