Waec Chemistry Past Questions For Year 1996
Question 21
If the third member of a homologous series is C3H8, the fifth member will be
- A. C 5H8
- B. C5H9
- C. C5H10
- D. C5H11
- E. C5H12
Question 22
The component of air that can be removed by alkaline pyrogallol solution is
- A. oxygen
- B. nitrogen
- C. water vapour
- D. carbon (IV) oxide
- E. noble gases
Question 23
Use this following information to answer this question. Compound X was boiled with concentrated hydrochloric acid for a long time. One of the products was found to be a sugar. What type of reaction was involved between compound X and concentrated hydrochloric acid?
- A. Polymerization
- B. Fermentation
- C. Hydrolysis
- D. Neutralization
- E. Esterification
Question 24
Use this following information to answer this question. Compound X was boiled with concentrated hydrochloric acid for a long time. One of the products was found to be a sugar. Compound X was probably
- A. rubber
- B. polyethene
- C. nylon
- D. cellulose
- E. ethanol
Question 25
Which of the following is a disaccharide?
- A. fructose
- B. starch
- C. cellulose
- D. sucrose
- E. glycogen
