Waec Chemistry Past Questions For Year 2022
Question 1
Which of the following sugars is a product of the condensation of monosaccharides?
- A. galactose
- B. maltose
- C. glucose
- D. fructose
Question 2
The by-product of fermentation of sugar is
- A. carbon(IV) oxide.
- B. ethanoic acid.
- C. propanol
- D. propan-1, 2, 3- triol.
Question 3
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.
Question 4
Which of the following compounds would react rapidly with bromine?
- A. Benzene
- B. Hexane
- C. Hexene
- D. Hexanol
Question 5
What amount of electricity is required to deposit one mole of aluminium from a solution of AlCl3?
- A. One Faraday
- B. One ampere
- C. Three Faradays
- D. Three amperes
