STC 221 covers 13 topics. StudyPath paces them into daily study
sessions that finish before your exam date, with practice questions and worked
answers for each one.
Electrophilic and nucleophilic aromatic substitution
Phenol
Carbonyl-substituted benzenes
Benzoic acid
Benzoic acid derivatives
Benzamides and phthalic anhydride
Aniline
Diazonium compounds and azo dyes
A sample from this course
One topic, as StudyPath teaches it.
Ethers
Ethers are organic compounds where an oxygen atom is bonded to two alkyl or aryl groups. Mastering their classification, preparation, physical properties, and reaction mechanisms—especially the SN2 substitution and acid-catalysed cleavage—is essential for solving NUC and NBTE exam questions.
What you get for STC 221
Every topic above, split into sessions and dated against your exam.
Practice questions per session, with answers that explain themselves.
Offline reading — the whole course is a few hundred KB on your phone.
An AI tutor that answers questions using this course's own material.