WAEC Chemistry 2022 Objective — Question 7
Question 7 of 50 from the West African Examinations Council (WAEC) Chemistry 2022 Objective paper, with the correct answer and a full explanation.
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Alkanols can be manufactured from alkenes by the initial reaction of alkenes with
- A. bromine in tetrachloromethane
- B. concentrated tetraoxosulphate (VI) acidCorrect
- C. aqueous potassium tetraoxomanganate (VII)
- D. sodium hydroxide solution
Explanation
Alkanols (alcohols) are manufactured from alkenes via initial reaction with concentrated tetraoxosulphate (VI) acid to form an alkyl hydrogen sulphate, which is then hydrolysed with water.
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