Year :
2008
Title :
Chemistry
Exam :
WASSCE/WAEC MAY/JUNE
Paper 1 | Objectives
41 - 44 of 44 Questions
| # | Question | Ans |
|---|---|---|
| 41. |
Which of the following substances causes the depletion of the ozone layer in the atmosphere? A. Carbon (IV) oxide B. Chlorofluorocarbon C. Sulphur (IV) oxide D. Hydrocarbons |
B |
| 42. |
Chemicals that are produced in small quantities and with very high degree of purity are A. bulk chemicals B. fine chemicals C. heavy chemicals D. light chemicals |
B |
| 43. |
Aluminium is a good roofing material because it A. is strong and does not conduct heat and electricity B. readily absorbs light C. forms an oxide film over its surface which prevents corrosion D. is flexible and can conduct heat Detailed SolutionThe thin coat of aluminum oxide formed prevents further attack of the metal by atmospheric oxygen and water. |
|
| 44. |
Which of the following alloys is mainly used in making statues? A. Brass B. Bronze C. Duralumin D. Steel |
B |
| 41. |
Which of the following substances causes the depletion of the ozone layer in the atmosphere? A. Carbon (IV) oxide B. Chlorofluorocarbon C. Sulphur (IV) oxide D. Hydrocarbons |
B |
| 42. |
Chemicals that are produced in small quantities and with very high degree of purity are A. bulk chemicals B. fine chemicals C. heavy chemicals D. light chemicals |
B |
| 43. |
Aluminium is a good roofing material because it A. is strong and does not conduct heat and electricity B. readily absorbs light C. forms an oxide film over its surface which prevents corrosion D. is flexible and can conduct heat Detailed SolutionThe thin coat of aluminum oxide formed prevents further attack of the metal by atmospheric oxygen and water. |
|
| 44. |
Which of the following alloys is mainly used in making statues? A. Brass B. Bronze C. Duralumin D. Steel |
B |