Past Questions And Answers
(a)(i) Arrange the following elements in the order of increasing reactivity. Iron, Lead, Magnessium, Aluminium.
(ii) Which of the following elements in (a)(i) above reacts with sodium hydroxide to give hydrogen?
(b) What property of tetraoxosulphate (VI) acid does each of the following reactions illustrate?
(I) S + 2H\(_2\)SO\(_4\) ---> 3SO\(_4\) + 2H\(_2\)O
(ii) MgO + H\(_2\)SO\(_4\) ---> MgSO\(_4\) + H\(_2\)O
(iii) C\(_{12}\)H\(_{22}\)C\(_{11}\) + H\(_2\)SO\(_4\) ---> 12C + H\(_2\)SO\(_4\) + 11H\(_2\)O
View Discussion (0)WAEC 1998 THEORYWhat is the relative molecular mass of the compound below?
[H = 1.0; C = 12.0; O = 16.0]
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- A. 137
- B. 136
- C. 64
- D. 59
In the question below choose the word(s) or phrase whichbest fills the gap: We later on discovered that some members .... another meeting before the one advertised.
- A. were holding
- B. have held
- C. have been holding
- D. had held
The agony of Jesus in the Garden of Gethsemane is a
- A) sign of abandonment
- B) manifestation of human weakness
- C) punishment
- D) preparation for his death
The law of diminishing marginal utility indicates that if a consumer increases his consumption of a commodity continuously, his?
- A. total utility must fall
- B. marginal utility must fall
- C. marginal utility may rise even though his total utility is falling
- D. marginal utility may fall even though his total utility may be rising
(a) (i) Describe epigeal germination of a seed.
(ii) In a tabular form, state three differences between epige germination and hypogeal germination.
(b)(i) What is seed dormancy?
(ii) State three ways b which dormancy in seeds can be broken.
(c) State six advantages of using contraceptives in puma populations.
View Discussion (0)WAEC 2012 THEORYa.
i. Distinguish between:
money cost and opportunity cost
ii. Distinguish between:
normal good and inferior goods
b.
i. Explain how the scale of preference assists the following economic groups in making efficient allocation of their resources:
individuals
ii. Explain how the scale of preference assists the following economic groups in making efficient allocation of their resources:
firms
iii. Explain how the scale of preference assists the following economic groups in making efficient allocation of their resources:
government
View Discussion (0)WAEC 2023 THEORYThe action that portrayed Moses as a leader of the Israelites was his
- A. disobedience to Pharaoh and escape
- B. request to Pharaoh to spare Israelite's sons
- C. protection of the daughters of Jethro
- D. Killing of an Egyptian who fought with a Hebrew.
In the question below choose the most appropriate option opposite in meaning to the word(s) underlined: He won the election because he was able tocarry his people along with him
- A. alienate his people
- B. go out with the people
- C. have the support of the people
- D. fail to provide the people with transport
The least of the factors to be considered in the location of industries is
- A. raw materials
- B. transport
- C. markets
- D. climate