WAEC Chemistry Past Questions and Answers


WAEC Chemistry past questions and answers are now available for download in PDF format. See how to access WAEC Chemistry past questions that will help boost your score and your overall performance in the 2023 WAEC Chemistry examination below.

WAEC Chemistry exam past questions and answers are provided here for download. All you have to do is to scroll through each of the questions. Scroll down to download the free WAEC Chemistry past questions and answers 2023.

WAEC Past Questions for Chemistry

This web page was created for the purpose of helping all prospective undergraduate students who are searching for WAEC Chemistry past questions Objective and Theory for preparation.

If you are one of them, then we have uploaded up-to-date WASSCE Chemistry past questions to help you during your preparation. So if you have been searching for WAEC past questions and answers for Chemistry, then you are on the right page.

The Chemistry WAEC past questions will help you to know the nature and pattern of the West African Examinations Council (WAEC) Examination. These materials will give you insight and prepares you for what to expect during the examination.


Our earnest desire is that you score higher in the upcoming West African Senior School Certificate Examination for prospective undergraduates. That’s why we have uploaded the WAEC past Chemistry questions and answers for your preparation.

All you have to do is to set aside time each day for your preparation in order to have a distinction or at least a credit pass. Remember, preparation is key to success.

Download the WASSCE Chemistry past questions in PDF format below.

WAEC Chemistry Past Questions and Answers

1. Which of the following oxides is amphoteric?

  • A. Carbon(II) oxide
  • B. Nitrogen(IV) oxide
  • C. Lead(II) oxide
  • D. Calcium oxide

2. Charcoal is used in the decolourization of sugar because of its

  • A. absorption property.
  • B. amorphous property.
  • C. oxidizing property.
  • D. adsorption property.

3. Which of the following processes occur during the fractional distillation of petroleum?

  • A. Condensation and diffusion
  • B. Diffusion and evaporation
  • C. Diffusion and sublimation
  • D. Evaporation and condensation

4. Which of the following statements about atoms of a metal is correct? They

  • A. readily accepts electrons
  • B. are soft
  • C. are held together by covalent bond
  • D. are held together by a sea of electron cloud

5. Eectropositivity of elements across the periodic table normally

  • A. remains constant down the group
  • B. increases across the period
  • C. decreases across the period
  • D. decreases down the group

6. Which of the following elements would displace copper from a solution of copper ions?

  • A. silver
  • B. gold
  • C. lead
  • D. mercury

7. Which of the following bond types is intermolecular?

  • A. Covalent bond
  • B. Hydrogen bond
  • C. Ionic bond
  • D. Metallic bond

8. Which of the following statements about an equilibrium system is correct?

  • A. Forward and backward reactions occur at the same rate
  • B. The concentrations of reactants must equal that of the products
  • C. The concentrations of, reactants and products can be changed by adding a catalyst,
  • D. The concentrations of reactants and products are not affected by a change in temperature

9. Which of the following properties indicate that an element is a metal. It

I. reacts with oxygen to form an acidic oxide
II. forms ionic chlorides
III. has variable oxidation states
IV. displaces hydrogen from dilute HCl

  • A. I and III only
  • B. I and II only
  • C. II and IV only
  • D. I, II, III and IV

10. Consider the following table

Substitute Meltig point / ºC Boiling  point / ºC
P – 78 -25
Q – 8 40
R  – 6 150
S 44 280

Which of the substances is a liquid at room temperature and rapidly evaporates on exposure to air?

  • A. P
  • B. Q
  • C. R
  • D. S

11. Graphite is used as a dry lubricant due to the presence of

  • A. mobile electrons
  • B. free electrons
  • C. octahedral structures
  • D. layered structures

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