Exercises

The unit closes with the NCERT's own end-of-chapter exercises (9.1–9.25), each answered

below with our own worked solutions. They rehearse the full span of the chapter: IUPAC

naming and isomer-drawing for alkanes, alkenes and alkynes; conformations of ethane;

Markovnikov and peroxide-effect addition; ozonolysis as a structure-determination tool;

the free-radical mechanism of halogenation; benzene's resonance structure, Hückel

aromaticity and the mechanism of electrophilic substitution; the directive influence of

substituents; and the reasoning behind restrictions on the use of polynuclear …