BECE 2023 Integrated Science Past Questions and Answers
The BECE 2023 Integrated Science paper has 39 objective and 6 theory questions. Here are sample objective questions with the correct answers and explanations. Sit the full paper with the real time limit on ePrep.
Sample questions with answers
1. The very hard greenish-black deposit around the corners of the teeth is known as
- A. gum disease.
- B. plaque.
- C. caries.
- D. cavity.
Answer: B. plaque.
Plaque is the deposit of food, saliva and bacteria that builds up on teeth and hardens into tartar.
Plaque is the deposit of food, saliva and bacteria that builds up on teeth and hardens into tartar.
2. When equal amount of water is poured on dry soil samples, the increase in weight per unit amount of soil would be highest in
- A. gravel.
- B. clayey soil.
- C. sandy soil.
- D. loamy soil.
Answer: B. clayey soil.
Clay has the finest particles and the highest water-holding capacity, so it retains the most water.
Clay has the finest particles and the highest water-holding capacity, so it retains the most water.
3. The following practices are cultural practices in crop production except
- A. nursing.
- B. pest control.
- C. mulching.
- D. weeding.
Answer: A. nursing.
Cultural practices are carried out after planting (pest control, mulching, weeding). Nursing seedlings comes before planting.
Cultural practices are carried out after planting (pest control, mulching, weeding). Nursing seedlings comes before planting.
4. An example of a mixture is
- A. sodium sulphate.
- B. hydrogen chloride.
- C. ammonia.
- D. salt solution.
Answer: D. salt solution.
Salt solution is salt physically mixed with water. The others are compounds.
Salt solution is salt physically mixed with water. The others are compounds.
5. Which of the following statements about acids are correct?
I. They turn red litmus paper blue.
II. They can be neutralized by bases.
III. Citrus fruits contain acids.
I. They turn red litmus paper blue.
II. They can be neutralized by bases.
III. Citrus fruits contain acids.
- A. I and II only
- B. II and III only
- C. I and III only
- D. I, II and III
Answer: B. II and III only
Acids turn blue litmus red (not red to blue). They are neutralized by bases, and citrus fruits contain citric acid.
Acids turn blue litmus red (not red to blue). They are neutralized by bases, and citrus fruits contain citric acid.
6. The practice of reducing the number of seedlings per stand for better growth is known as
- A. earthing up.
- B. filling in.
- C. pricking-out.
- D. thinning out.
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7. A herbal mixture has a volume of 200 m$^3$ and a mass of 10,000 kg. Determine the density of the mixture.
- A. 50 kg m$^{-3}$
- B. 200 kg m$^{-3}$
- C. 800 kg m$^{-3}$
- D. 10,200 kg m$^{-3}$
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8. How many atoms are present in H$_2$O$_2$?
- A. 5
- B. 4
- C. 3
- D. 2
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9. Which of the following electronic components is not made of semi-conductors?
- A. Capacitor
- B. Diode
- C. LED
- D. Transistor
Answer and explanation: practise this paper on ePrep.
10. Steam changes to liquid by a process called
- A. evaporation.
- B. condensation.
- C. melting.
- D. boiling.
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