Year :
1999
Title :
Chemistry
Exam :
WASSCE/WAEC MAY/JUNE
Paper 1 | Objectives
31 - 40 of 42 Questions
| # | Question | Ans |
|---|---|---|
| 31. |
Equal volumes of water were added to one mole of each of the following compounds. Which of them produced the largest number of ions A. Glucose B. Sodium trioxonitrate (V) C. Ethananoic acid D. Silver chloride |
B |
| 32. |
When dilute copper (ll) chloride solution is electrolysed, the reaction at the cathode is represented by the equation A. Cu → Cu2+ + 2e- B. Cu2+ + 2e- → Cu C. 40H- - 4e- → O2 + 2H2O D. 2CI- → CI2 + 2e |
B |
| 33. |
How many carbon atoms are present in one molecule of 2-methylpropane? A. 2 B. 3 C. 4 D. 5 |
C |
| 34. |
Which of the following is the most reactive towards bromine? A. Methane B. Benzene C. Ethyne D. Hexane |
C |
| 35. |
Which of the following compounds is unsaturated? A. 2-methylbutane B. Chloromethane C. Methylbenzene D. 1,2-dibromoethane |
C |
| 36. |
Which of the following compounds reacts with sodium hydroxide to form a salt? A. CH 3CH 2COOH B. (CH3) 3COH C. CH3CH=CH 2 D. C 6H 12O 6 |
A |
| 37. |
Alkanoates are produced from alkanols by A. fermentation B. saponification C. oxidation D. esterification |
D |
| 38. |
Which of the following is a secondary alkanol? A. OHCI2-CH2OH B. H2C=CH-CH2OH C. CH 3-CH(OH)-CH 3 D. CH3-(CH2)3-CH2OH |
C |
| 39. |
Geometric (cis-trans) isomerism is exhibited by A. C 2H 2CI 2 B. CH2CI5 C. C 4H 10 D. C5H12 |
A |
| 40. |
Which of the following is needed to produce slag during the extraction of iron in the blast furnace? A. Cryolite B. Limestone C. Carbon D. Sulphur |
B |
| 31. |
Equal volumes of water were added to one mole of each of the following compounds. Which of them produced the largest number of ions A. Glucose B. Sodium trioxonitrate (V) C. Ethananoic acid D. Silver chloride |
B |
| 32. |
When dilute copper (ll) chloride solution is electrolysed, the reaction at the cathode is represented by the equation A. Cu → Cu2+ + 2e- B. Cu2+ + 2e- → Cu C. 40H- - 4e- → O2 + 2H2O D. 2CI- → CI2 + 2e |
B |
| 33. |
How many carbon atoms are present in one molecule of 2-methylpropane? A. 2 B. 3 C. 4 D. 5 |
C |
| 34. |
Which of the following is the most reactive towards bromine? A. Methane B. Benzene C. Ethyne D. Hexane |
C |
| 35. |
Which of the following compounds is unsaturated? A. 2-methylbutane B. Chloromethane C. Methylbenzene D. 1,2-dibromoethane |
C |
| 36. |
Which of the following compounds reacts with sodium hydroxide to form a salt? A. CH 3CH 2COOH B. (CH3) 3COH C. CH3CH=CH 2 D. C 6H 12O 6 |
A |
| 37. |
Alkanoates are produced from alkanols by A. fermentation B. saponification C. oxidation D. esterification |
D |
| 38. |
Which of the following is a secondary alkanol? A. OHCI2-CH2OH B. H2C=CH-CH2OH C. CH 3-CH(OH)-CH 3 D. CH3-(CH2)3-CH2OH |
C |
| 39. |
Geometric (cis-trans) isomerism is exhibited by A. C 2H 2CI 2 B. CH2CI5 C. C 4H 10 D. C5H12 |
A |
| 40. |
Which of the following is needed to produce slag during the extraction of iron in the blast furnace? A. Cryolite B. Limestone C. Carbon D. Sulphur |
B |