Waec Chemistry Past Questions For Year 2002
Question 41
The reaction between ethene and chlorine to form 1, 2-dichloroethane is
- A. oxidation
- B. polymerization
- C. addition
- D. substitution
Question 42
One of the methods used for combating air pollution is
- A. burning of solid waste
- B. provision of sanitary land fills
- C. legislation against some industrial practices
- D. scavenging of refuse dumps
Question 43
Iron is often galvanized in order to
- A. make it more malleable
- B. remove the impurities in it
- C. protect it against corrosion
- D. render it passive
Question 44
The energy value of petrol can be determined by a
- A. bomb calorimeter
- B. catalytic cracker
- C. fractionating column
- D. thermometer
Question 45
The reaction of sucrose with dilute HCI produces
- A. an alkanoate
- B. glucose and fructose
- C. a black mass of carbon
- D. a polysaccharide
