Past Questions And Answers
The difference between the money cost and the real cost of any item is that
- A. real cost is the alternative forgone while the money cost is the actual amount paid for buying the item
- B. the real cost is the opportunity cost, while the money cost is the marginal cost
- C. money cost is the opportunity cost, while the real cost is the actual cost in monetary terms
- D. money cost is always greater than the real cost
What type of devices are CDs or DVDs?
- A) output
- B) software
- C) storage
- D) input
A consumer purchasing a commodity X will maximize his satisfaction if
- A. Px = MUx
- B. Px ? MUx
- C. Px > MUx
- D. Px< MUx
A ladder 16m long leans against an electric pole. If the ladder makes an angle of 65° with the ground, how far up the electric pole does its top reach
- A. 6.8m
- B. 14.5m
- C. 17.7m
- D. 34.3m
(a) (i) State the collision theory of reaction rates.
(ii) Using the collision theory, explain briefly how temperature can affect the rate of a chemical reaction.
(b) (i) Sketch a graphical representation of Charles’ law.
(ii) Calculate the volume of oxygen that would be required for the complete combustion of 2.5 moles of ethanol ats.t.p.
[molar volume at s.t.p = 22.4 dm\(^3\)]
(c) (i) Defineesterification.
(ii) Give two uses of alkanoates.
(iii) Give the products of the alkaline hydrolysis of ethyl ethanoate.
(d) A tin coated plate and a galvanized plate were exposed for the same length of time.
(i) Which of the two plates corrodes faster?
(ii) Explain briefly your answer in 2 (d) (i).
View Discussion (0)WAEC 2018 THEORYAn appropriate industrialization strategy in an under-populated country is
- A. import substitution
- B. capital intensive
- C. the contract method
- D. the use of foreigners in the factories
The process of transferring data from one computer to another is referred to as
- A. downloading
- B. faxing
- C. browsing
- D. decoding
The study of economics enables the individuals to
- A. change jobs
- B. evades taxes
- C. accumulate huge wealth
- D. make rational decisions
| Marks | 10 - 19 | 20 - 29 | 30 - 39 | 40 - 49 | 50 - 59 | 60 - 69 | 70 - 79 | 80 - 89 | 90 - 99 |
| Frequency | 2 | 2 | 2 | 8 | 13 | 11 | 12 | 10 | 4 |
The table shows the distribution of marks scored by 64 students in a test
(a) Draw a histogram for the distribution.
(b) Use the histogram to estimate the modal score.
View Discussion (0)WAEC 2020 THEORYCoal and mineral oil are usually found embedded in
- A. crystailline rocks
- B. igneous rocks
- C. metamorphic rocks
- D. sedimentary rocks