Chemistry - Carboxylic acid and their Derivatives Question with Solution | TestHub

Friedel-Crafts acetylation gives mainly p-methylacetophenone P. Its methyl-ketone group gives iodoform. Strong oxidation converts both side chains into carboxyl groups, giving terephthalic acid R after acidification. R dissolves in $\mathrm{NaHC}{\mathrm{O}}_3$ and $\mathrm{NaOH}$. Condensation with ethylene glycol gives the polyester terylene (PET), a step-growth polymer.