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WAEC GCE Chemistry Objectives Questions 2022
This WAEC GCE Exam is only for Candidates who are currently not in the school system. WAEC GCE Chemistry Answers and questions involve questions that will test the candidate’s ability chemistry
WAEC GCE Chemistry Answers and questions are always the types of questions pertaining to how you can understand chemical compositions. WACE Chemistry exams are always very simple and candidates should pass it with flying colors.
WAEC Sample past Questions
1. The Number of Hydroxonium ions produced by one moleculeof Ann acid in aqueous Solution is it’s
- A. Acidity
- B. Basicity
- C. Concentration
- D. pH
ANSWER: B ( Basicity)
2. When an acid anhydride dissolves in water, the solution formed would have pH
- A. Lower than 7
- B. Equal to 7
- C. Higher than 7
- D. Equal to 14
ANSWER: A (lower than 7)
3. A solution of pH 7 is.
- A. Acidic
- B. Dilute
- C. Neutral
- D. Saturated
ANSWER: C (Neutral)
4. Which of the following statements is NOT correct?
- A. The average kinetic energy of a gas is directly proportional to its temperature
- B. At constant tempearture, the volume of a gas increases as the pressure increases
- C. The pressure of a gas is inversely proportional to its volume
- D. The temperature of a gas is directly proportional to its volume
- E. The collisions of molecules with each other are inelastic
5. Zinc Oxide is a
- A. Basic Oxide
- B. Acidic Oxide
- C. Amphoteric Oxide
- D. Neutral Oxide
- E. Reactive Oxide
6. When sodium chloride and metallic sodium are each dissolved in water
- A. both processes are exothermic
- B. both processes are endothermic
- C. the dissolution of metallic sodium is endothermic
- D. the dissolution of metallic sodium is exothermic
- E. the dissolution of sodium chloride is explosive
7. The periodic classification of elements is an arrangement of the elements in order of their
- A. Atomic Weights
- B. Isotopic Weights
- C. Molecular Weights
- D. Atomic Numbers
- E. Atomic Masses
8. In the reaction between sodium hydroxide and sulphuric acid solutions, what volume of 0.5 molar sodium hydroxide would exactly neutralise 10cm3 of 1.25 molar sulphuric acid?
- A. 5cm3
- B. 10cm3
- C. 20cm3
- D. 25cm3
- E. 50cm3
9. Which of the following pH value indicates strong acidity..
- A. 1.5
- B. 6.7
- C. 7.5
- D. 10.0
10. Fine Chemical have the following except
- A. They are chemically pure
- B. They are produced by batch process
- C. They are produced in large quantity because of high applicability
- D. They are produced in small quantity because of limited applicability
Chemistry Essay 2022 WAEC GCE Questions and Answers PDF
1. (a) Define Chemistry industry
- (b) Name any five division of Chemical industries
- (c) What is the use of sulphur (iv) oxide in Chemical industries.
2. Explain the terms heavy chemicals and fine Chemicals
- (b) Name five inorganic industries Chemical and their raw materials, stating two uses of each.
3. Mention one major Chemical industry in each case which requires the following as raw materials
- (I) Petrochemicals
- (ii) Cellulose
WAEC GCE chemistry laoding..
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