Past Questions And Answers
Money spent on buying of plots of land by a firm is
- A)Capital Expenditure
- B) Capital receipts
- C) Revenue Expenditure
- D) Revenue Receipts
Which type of salt is found in antacid medications and is used to relieve heartburn and indigestion?
- A. Aluminum chloride
- B. Magnesium chloride
- C. Sodium chloride
- D. Calcium chloride
Which of the following is a biotic component of an ecosystem?
- A. Soil
- B. Rainfall
- C. Light
- D. Fungi
The Prophet was survived by only one child. This was___
- A. Zainab
- B. Fatimoh
- C. Ruqayah
- D. Ibrahim
The major factor affecting distribution of crops in West Africa is
- A. climate
- B. soil
- C. topography
- D. disease
(a)(i) Define the term hygroscopic.
(ii) Give two difference: between a physical change and a chemical change.
(iii) Using the kinetic theory of gases, explain briefly the Charles' law.
(b)(i) Arrange the following compounds in order of increasing boiling points: CS\(_2\); CO\(_2\); NaH. Give reasons for your answer.
(ii) Write a balanced chemical equation to illustrate the reaction of chlorine gas with cold dilute sodium hydroxide.
(c) In a certain reaction, 15.0 g of impure magnesium sample reacted with excess hydrochloric acid liberating 8.6 dm\(^2\) of hydrogen gas at s.t.p.
(i) Write a balanced equation for the reaction.
(ii) Calculate the: I. mass of pure magnesium in the sample; I. percentage purity of the magnesium sample; III. number of ions produced in the reaction. [Mg = 24.0; volume at s.t.p. 22.4 dm\(^{-3}\), Avagadro's constant = 6.02 x 10\(^{23}\)mol\(^{-1}\)]
View Discussion (0)WAEC 2013 THEORYA gas occupies a certain volume at 27°C. At what temperature will its volume be three times the original volume assuming that its pressure remains constant?
- A. 81°C
- B. 162°C
- C. 354°C
- D. 627°C
The main function of Roqib and Atid is to
- A. watch over the gate of paradise and Hell
- B. blow the trumpet on the last day
- C. Record man's deeds on earth
- D. carry the message of Allah to prophet
Based on George Orwell's Nineteen Eighty-Four, the action in the novel is built around
- A. Julia
- B. Big Brother
- C. Winston Smith
- D. O'Brien
In his first letter to Timothy, Paul warned believers aganist the love of money, because it contends with their__________
- A. Belief
- B. Faith
- C. Desire
- D. Hope