Past Questions And Answers
Go into the hills, lest the pursuers meet you; and hide yourselves three days, until the pursuers have returned; then afterwards you may go your way' Who gave this advice?
- A. Deborah
- B. Rebekah
- C. Rahab.
- D. Sihon.
A sustained increase in the production of goods and service in a country is called economic?
- A. development
- B. growth
- C. diversification
- D. planning
One advantage of small scale retail outlet is?
- A. availability of self service facilities
- B. ability to buy in bulk
- C. easy access to large amount of capital
- D. personal attention to customers
Mallam Gambo bought a freezer for his shop costing N10,500. In recording, he debited office expenses account and credited the bank account. What book-keeping error has he committed?
- A. Error of commission
- B. Error of reversal of entries
- C. Error of principle
- D. Compensating error
Aluminium is used in the manufacture or aircraft because it
- A. Is hard and brittle
- B. Is light and resists corrosion
- C. Has high density and conducts electricity
- D. Is malleable and ductile
When an axon is at rest, the concentration of ions on either side of the membrane are different. Which of the following is correct about the concentrations ions on either side of the membrane?
- A. There is an excess of potassium ions inside the axon and an excess of sodium ions outside
- B. The inside of the axon becomes positively charged while the outside is negatively charged
- C. There is an excess of sodium ions on the inner side of the axon
- D. Chloride and potassium ions begin to move across the membrane
(a)i. State two characteristics of a homologous series.
(ii) Explain briefly why there are differences in the reaction of ethane and ethene.
(b) When crystals of sodium chloride were warmed with concentrated tetraoxosulphate( VI) acid, a gas was evolved.
(i) Name the gas.
(ii) State two physical properties of the gas.
(iii) Write a balanced chemical equation for the reaction.
(c)i. What are hydrocarbons?
(ii) State two natural sources of hydrocarbons.
(iii) A hydrocarbon contains 83% of carbon by mass. Calculate its empirical formula. [H=1.0, C=12.0]
(d) Draw and label a diagram of a set-up that could be used to electroplate a copper ornament with silver
View Discussion (0)WAEC 2021 THEORYThe president of Nigeria was indirectly elected through secret ballot for a period of five years by the senate in
- A. 1963
- B. 1979
- C. 1983
- D. 1960
The diagram below is an illustration of organisms in an air-tight aquarium.The most important factor needed by the organisms is

- A. light energy
- B. low humidity
- C. oxygen
- D. nitrate
In triangles XYZ and XQP, XP = 4cm, XQ = 5cm and PQ = QY = 3cm. Find ZY

- A. 8cm
- B. 6cm
- C. 4cm
- D. 3cm

