WAEC - Chemistry (2022 - No. 7)
Alkanols can be manufactured from alkenes by the initial reaction of alkenes with
bromine in tetrachloromethane
concentrated tetraoxosulphate(VI) acid
aqueous potassium tetraoxomanganate(VII).
sodium hydroxide solution.
Explication
An alkene reacts with conc. H2SO4 to yield an alkyl hydrogen tetraoxosulphate (VI). The compound formed undergoes hydrolysis when boiled with water to yield an alcohol.