Past Waec Questions
Past Waec Questions. Are you preparing to write Waec this year, have you gotten Past WAEC Questions in PDF Format 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.
What is Past WAEC Questions in PDF
Let us begin by explaining what this past question and answer is all about. Past WAEC Questions in PDF Format is the compilation of all the questions that have been given to students on different subjects that are written in Waec to answer and score a minimum of credit pass to be qualified for the award of school certificate and the past question is presented in pdf format.
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Many past waec candidates who got this Past WAEC Question in PDF Format from us have testified to the fact that it was really helpful to them. and we are certain that it is going to help you as well. When you get this past question and study, it will provide you with all the necessary knowledge that you would be needed in order for you to score higher than you expected even up to an “A” in the exam. Pounds to Naira
With the proper use of our Past WAEC Questions in PDF Format, you will definitely pass the jamb examination and come out successfully and gain direct entry admission into the university. This past question comes to you through your email address or Whatsapp once you make payments to purchase it. The downloadable format is going to be in softcopy, you can either choose to download it and read with your android phone or laptop and at your own convenience – wherever and whenever. Jamb Result
How is Past WAEC Questions in PDF Format Patterned
Normally, the Past WAEC Questions in PDF Format is patterned according to the question pattern of each subject that you will be writing. there are basically two aspects of the exams, the objectives and theory aspects. However, some subjects have more than two because of the practical aspect of it. 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 in order to save your time. All you need to do is to devote quality time to study the Past WAEC Questions in PDF Format and watch yourself score better than you expected in the examination. Waec Result
Why You Need A Copy of Past WAEC Questions in PDF Download
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 in PDF Sample
In other to know that we are giving out the Past WAEC Questions in PDF Format, we have decided to give you some free samples as proof of what we said earlier. Jamb Result
Chemistry WAEC Objective Questions
Which of the following elements reacts with water?
A. Carbon
B. Iodine
C. Sodium
D. Sulphur
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Live, Study and Work in Canada. No Payment is Required! Hurry Now click here to Apply >> Immigrate to CanadaThe 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 completely 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 a salt if 0.4 g of it is obtained on 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 formation of reactants exceeds heat of 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 gmol-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 super saturated.
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 comprising 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 moldm-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 fire 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 moldrn-3 HCl that would completely neutralize 25cm3 of 0.3 moldm-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. colour.
Want more Chemistry Objective Test Questions like this?
Get the Complete WAEC Chemistry Exam Past Questions and Answers (Obj and Essay) in PDF Format from us.
SSCE WAEC Chemistry Theory Questions
Chemistry Paper 2
Paper 2 will last for 2 hours
This paper consists of two sections A and B. Answer one questions from Section A and three questions from Section B.
Credit will be given for clarity of expression and orderly presentation of material.
SECTION A
(1ai) Define the term fermentation.
(1aii) Name the catalyst that can be used for this process.
(b) Name two factors which determines the choice of an indicator for an acid-base titration.
(c) Consider the following reaction equation: [Fe + H2S04 ] FeS04 + H2.
Calculate the mass of unreacted iron when 5.0g of iron reacts with 10cm3 of 1.0 moldrrv3 H SO [Fe = 56.0]
(d) Name one:
(di) Heavy chemical used in electrolytic cells;
(dii) Fine chemical used in textile industries.
(e) Explain briefly how a catalyst increases the rate of a chemical reaction.
(f) (i) Write the chemical formula for the product formed when ethanoic acid reacts with ammonia.
(ii) Give the name of the product formed in 1 (f) (i)..
(g) List three properties of aluminum that makes it suitable for the manufacture of drink can.
(h) State two industrial uses of alkylalkanoates.
(i) List two effects of global warming.
(j) Name two steps involved in the crystallization of a salt from its solution.
Chemistry WAEC Essay Questions
SECTION B.
2ai. State the collision theory of reaction rates.
2aii.Using the collision theory, explain briefly how temperature can affect the rate of a chemical reaction.
bi. Sketch a graphical representation of Charles’s law.
bii. Calculate the volume of oxygen that would be required for the complete combustion of 2.5moles of ethanol at s.t.p.
[ molar volume at s.t.p = 22.4dm3]
ci. Define esterification.
cii. Give two uses of alkanoates.
ciii. 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.
di. Which of the two plates corrodes faster?
dii. Explain briefly your answer in 2 (d) (i).
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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 in top priority and not as a hobby. Read far and wide to enhance your level of aptitude
- Get Exams Preparation Materials: These involve textbooks, dictionaries, Past Waec Questions, mock questions, and others. These materials will enhance your mastering of the scope of the exams you are expecting.
- Attend Extramural Classes: Register and attend extramural classes at your location. This class will not only help you refresh your memory but will boast 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. Waec Result
- Eat when you feel like: During the exam preparation period, you are advised not to overeat, so as to avoid sleep. You need to eat little and light food whenever you feel like eating. Eat more of fruits, drink milk and glucose. This will help you to enhance retention. Npower Recruitment
- Reduce your time in social media: Some people live their entire life 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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