Past WAEC Questions – Are you preparing to write WAEC this year, have you gotten Past WAEC Questions to use and prepare for the exam? If yes then you are on the right path but if no, then you have to get it. It is one thing to aspire to participate in an examination and it is another to prepare adequately for the exam. When you prepare adequately for exams, you have conquered a greater percentage of what should instill fear of failure in you. You would not have to worry about the kind of questions that would be set because you already have in-depth knowledge of the WAEC examination through contacts with the previous questions put up by people like us to guide you in your examination pursuit.
WAEC Questions Pattern
Normally, the Past WAEC Questions are patterned according to the question pattern of each subject that you will be writing. there are two aspects of the exams, the objectives and theory aspects. However, some subjects have more than two because of the practical aspect. Therefore, the past question you will receive from us will depend on the subject its original pattern.
From the foregoing, we have made it very easy for you, we have brought all the questions for many years and put them together but we indicate the specific years of their occurrences. we also provide the correct answers to save you time. All you need to do is devote quality time to studying the Past WAEC Questions in PDF Format and watch yourself score better than you expected in the examination.
Why You Need Past WAEC Questions
It will also expose you to the questions that have been asked years back as most of those questions and answers get repeated every year while some will just be rephrased. So if you don’t have a copy of this past question, then you are losing out.
- It provides useful information about the types of questions to expect and helps you prevent unpleasant surprises.
- You will be able to detect and answer repeated questions quickly and easily.
- You will be able to find out the number of questions you will see in the exams.
Past WAEC Questions Sample
In other to know that we are giving out the Past WAEC Questions, we have decided to give you some free samples as proof of what we said earlier.
Chemistry WAEC Objective Questions
Which of the following elements reacts with water?
A. Carbon
B. Iodine
C. Sodium
D. Sulphur
The correct answer is Sodium, which is lettered C and therefore answer space C would be shaded.
[A] [ B ] [C] [ D ]
Think carefully before you shade the answer spaces; erase any answer you wish to change.
Which of the following raw materials is used in the plastic industry?
A. Ethene
B. Methane
C. Sulphur
D. Hydrogen
Which of the following organic compounds can undergo both addition and substitution reactions?
A. Petane
B. Benzene
C. Propane
D. Hexane
Which of the following equations represents a redox reaction?
A. AgNO 3 (aq) + KCl(ag)->AgCl(s)+ KNO3(aq)
B. HNO3 (aq)+ NaOH(aq) -> NaNO3 (aq) + H2O(l)
C. CaCO 3 (s) -> CaO(s) + CO 2 (g)
D. 2H2 S(g) + SO2 (g) -> 2H2O(I) + 3S(g)
The process of extraction of iron from its ore is
A. decomposition.
B. oxidation.
C. reduction.
D. sublimation.
What is the solubility of salt if 0.4 g of it is obtained by evaporating 200 cm3 of its saturated solution to dryness?
A. 0.08 gdm-3
B. 2.00 gdm-3
C. 8.00 gdm-3
D. 80.00 gdm-3
An acidic salt has
A. double anions in its aqueous solution.
B. a single cation in its aqueous solution.
C. hydrogen ions in its aqueous solution.
D. hydrogen atoms in its aqueous solution.
A reaction is endothermic if the
A. reaction vessel feels cool during the reaction.
B. enthalpy change is negative.
C. bond-forming energy exceeds bond-breaking energy.
D. heat of the formation of reactants exceeds the heat of the formation of products.
In which of the following compounds does hydrogen form ionic compounds?
A. CH4
B. HCl
C. NH3
D. NaH
Consider the following reaction equation:
Br2 + 2KI -> 2KBr + I2 .
Bromine is acting as
A. an oxidizing agent.
B. a reducing agent.
C. an acid.
D. a base.
An organic compound has the empirical formula CH2. If its molar mass is 42 nmol-1
what is its molecular formula? [H = 1.0, C = 12.0]
A. C2 H4
B. C3 H4
C. C3 H6
D. C4 H8
Ethene is produced from ethanol by
A. decomposition.
B. hydrolysis.
C. ozonolysis.
D. dehydration.
Consider the following equilibrium reaction:
2 AB(g) + B2(g) -><- 2AB3(g) AH = -XkJmol-1
The backward reaction will be favored by
A. a decrease in pressure.
B. an increase in pressure.
C. a decrease in temperature.
D. an introduction of a positive catalyst.
What is the mass of solute in 500 cm3 of 0.005 moldm-3 H2SO4?
[H =1.0, O = 16.0, S = 32.0]
A. 0.490 g
B. 0.049 g
C. 0.245 g
D. 0.0245 g
Pure water can be made to boil at a temperature lower than 100 °C by
A. reducing its quantity.
B. decreasing the external pressure.
C. distilling it.
D. increasing the external pressure.
Consider the following sketch of the solubility curve of some substances.
Note: scroll down to download the free chemistry WAEC questions in PDF copy to view the sketch
At what temperature does the solubility of KNO3, equal that of NaNO3?
A. 0°C
B. 20 °C
C. 30 °C
D. 40 °C
When a salt is added to its saturated solution, the salt
A. dissolves and the solution becomes supersaturated.
B. dissolves and the solution becomes unsaturated.
C. precipitates and the solution remains unchanged.
D. dissolves and crystals are formed.
When substance X was added to a solution of bromine water, the solution became colorless. X is likely to be
A. propane.
B. propanoic acid.
C. propyne.
D. propanol.
The preferential discharge of ions during electrolysis is influenced by the
A. mechanism of electrolysis.
B. electrolytic reactions.
C. nature of the electrode.
D. type of electrolytic cell.
The valence electrons of 12Mg are in the
A. 3s orbital.
B. 2px orbital.
C. 2s orbital.
D. 1s orbital.
Stainless Steel is an alloy comprised of
A. Fe and C.
B. Fe and Ni.
C. Fe, C, and Ni.
D. Fe, C, and Al.
The number of hydrogen ions in 1.0 dm3 of 0.02 mold-3 tetraoxosulphate(VI) acid is [NA = 6.02 x 1023]
A. 1.2 x 1022
B. 1.2 x 1023.
C. 2.4 x 1022.
D. 2.4 x 1023.
The most suitable substance for putting out petrol fires is
A. water.
B. carbon(IV)oxide.
C. fire blanket.
D. sand.
The following factors would contribute to environmental pollution except
A. production of ammonia.
B. manufacture of cement.
C. photosynthesis.
D. combustion.
The position of equilibrium in a reversible reaction is affected by
A. particle size of the reactants.
B. vigorous stirring of the reaction mixture.
C. presence of a catalyst.
D. change in concentration of the reactants.
The diagram below illustrates a conical flask containing water and ice.
NOTE: scroll down and download the free chemistry pdf past questions to see the diagram
Which of the following statements about the diagram is correct?
A. The water is at a lower temperature than the ice
B. Energy is absorbed when the ice changes to water
C. Energy is released when the ice changes to water
D. The water molecules vibrate about a fixed point
Which of the following statements best explains the differences between a gas and a vapor?
A. Unlike gases, vapors are liquids at room temperature
B. Unlike gases, vapor can easily be condensed into liquids
C., Unlike gases, vapour is readily converted into solids
D. Vapours are generally denser than gases
Consider the following reaction equation:
2HCl + Ca(OH)2 –> CaCl2 + H2O.
What is the volume of 0.1 modern-3 HCl that would completely neutralize 25cm3 of 0.3 mold-3 Ca(OH)2?
A. 150 cm3
B. 75 cm3
C. 30 cm3
D. 25 cm3
Cu and HNO3 are not suitable for preparing hydrogen gas because of their
A. reactivity and oxidation respectively.
B. conductivity and corrosiveness respectively.
C. melting point and reduction respectively.
D. electro negativity and solubility respectively.
Which of the following formulae cannot be an empirical formula?
A. CH
B. CH2
C. P2O5
D. N204
One of the criteria for confirming the purity of benzene is to determine its
A. heat capacity.
B. boiling point.
C. mass.
D. color.
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7 Tips to Prepare for WAEC Exams
- Don’t make reading your hobby: A lot of people put reading as a hobby in their CV, they might be right because they have finished schooling. But “You” are still schooling, so reading should be a top priority, not a hobby. Read far and wide to enhance your level of aptitude
- Get Exams Preparation Materials: These involve textbooks, dictionaries, Babcock University Post UTME Past Questions and Answers, mock questions, and others. These materials will enhance your mastery of the scope of the exams you are expecting.
- Attend Extramural Classes: Register and attend extramural classes at your location. This class will help you refresh your memory and boost your classroom understanding and discoveries of new knowledge.
- Sleep when you feel like: When you are preparing for any exams, sleeping is very important because it helps in the consolidation of memory. Caution: Only sleep when you feel like it and don’t oversleep.
- Make sure you are healthy: Sickness can cause excessive feelings of tiredness and fatigue and will not allow you to concentrate on reading. If you are feeling as if you are not well, report to your parent, a nurse, or a doctor. Make sure you are well.
- Eat when you feel like it: During the exam preparation period, you are advised not to overeat, and to avoid sleep. You need to eat little and light food whenever you feel like eating. Eat more fruits, drink milk and glucose. This will help you enhance retention.
- Reduce your time on social media: Some people live their entire lives on Facebook, Twitter, WhatsApp, Messenger chat. This is so bad and catastrophic if you are preparing for exams. Try and reduce your time spent on social media during this time. Maybe after the exams, you can go back and sleep in it.
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