9701/4 CHEMISTRY JUNE 02 - StudyGuide.PK
9701/4 CHEMISTRY JUNE 02 - StudyGuide.PK
9701/4 CHEMISTRY JUNE 02 - StudyGuide.PK
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(c)11www.studyguide.pkForExaminer'sUseDyes can be made from phenylamine by first converting it into benzenediazoniumchloride, and then coupling this with a phenol.IIINH 2 N + 2 Cl –IV+ a phenoldye(i) State the reagents and condition needed for step III...................................................................................................................................(ii) What reagent is the phenol dissolved in for step IV to be effective?..................................................................................................................................(iii) Suggest the structural formula of the dye formed when benzenediazoniumchloride is coupled with 2-methylphenol.[4][Total: 11]<strong>9701</strong>/4/S<strong>02</strong>
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