Year :
2002
Title :
Chemistry
Exam :
WASSCE/WAEC MAY/JUNE
Paper 1 | Objectives
41 - 50 of 52 Questions
| # | Question | Ans |
|---|---|---|
| 41. |
Which of the following processes takes place during the production of margarine from vegetable oils? A. Esterification B. Hydrolysis C. Hydrogenation D. Saponification |
C |
| 42. |
Which of the following compounds can be represented by the molecular formula C2H6O? A. Propanal B. Ethanol C. Methanoic acid D. Glucose |
B |
| 43. |
When alkynes are hydrogenated completely they produce compounds with the general molecular formula A. CnHn B. CnH2n C. CnH2n+2 D. CnH2n-2 |
C |
| 44. |
The following compounds are hydrocarbons except A. methylpropanoate B. 2-methylbutane C. benzene D. cyclohexane |
A |
| 45. |
The reaction between ethene and chlorine to form 1, 2-dichloroethane is A. oxidation B. polymerization C. addition D. substitution |
C |
| 46. |
Which of the following statements about soapless detergents is correct? They A. lather readily with hard water B. increase the surface tension of water C. cause hydrolysis of salts in water D. from a curdy precipitate with soft water |
A |
| 47. |
Which of the following types of alkanols undergo oxidation to produce alkanoic acids? 1. Primary alkanols 11. Secondary alkanols 111. Tertiary alkanols A. 1,11 and 111 B. l and ll only C. ll only D. l only |
D |
| 48. |
A suitable reagent for distinguishing between ethanoic acid ethanol is A. bromine water B. Fehling's solution C. sodium hydrogentrioxocarbonate (IV) D. ammoniacal silver trioxonitrate (V) |
C |
| 49. |
The reaction of sucrose with dilute HCI produces A. an alkanoate B. glucose and fructose C. a black mass of carbon D. a polysaccharide |
B |
| 50. |
The energy value of petrol can be determined by a A. bomb calorimeter B. catalytic cracker C. fractionating column D. thermometer |
C |
| 41. |
Which of the following processes takes place during the production of margarine from vegetable oils? A. Esterification B. Hydrolysis C. Hydrogenation D. Saponification |
C |
| 42. |
Which of the following compounds can be represented by the molecular formula C2H6O? A. Propanal B. Ethanol C. Methanoic acid D. Glucose |
B |
| 43. |
When alkynes are hydrogenated completely they produce compounds with the general molecular formula A. CnHn B. CnH2n C. CnH2n+2 D. CnH2n-2 |
C |
| 44. |
The following compounds are hydrocarbons except A. methylpropanoate B. 2-methylbutane C. benzene D. cyclohexane |
A |
| 45. |
The reaction between ethene and chlorine to form 1, 2-dichloroethane is A. oxidation B. polymerization C. addition D. substitution |
C |
| 46. |
Which of the following statements about soapless detergents is correct? They A. lather readily with hard water B. increase the surface tension of water C. cause hydrolysis of salts in water D. from a curdy precipitate with soft water |
A |
| 47. |
Which of the following types of alkanols undergo oxidation to produce alkanoic acids? 1. Primary alkanols 11. Secondary alkanols 111. Tertiary alkanols A. 1,11 and 111 B. l and ll only C. ll only D. l only |
D |
| 48. |
A suitable reagent for distinguishing between ethanoic acid ethanol is A. bromine water B. Fehling's solution C. sodium hydrogentrioxocarbonate (IV) D. ammoniacal silver trioxonitrate (V) |
C |
| 49. |
The reaction of sucrose with dilute HCI produces A. an alkanoate B. glucose and fructose C. a black mass of carbon D. a polysaccharide |
B |
| 50. |
The energy value of petrol can be determined by a A. bomb calorimeter B. catalytic cracker C. fractionating column D. thermometer |
C |