Alkanols can be manufactured from alkenes by the initial reaction of alkenes with

  • A bromine in tetrachloromethane
  • B concentrated tetraoxosulphate(VI) acid
  • C aqueous potassium tetraoxomanganate(VII).
  • D sodium hydroxide solution.
waec 2022chemistry

The correct answer is B. concentrated tetraoxosulphate(VI) acid

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.

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