WAEC Chemistry 2021 Objective — Question 10
Question 10 of 50 from the West African Examinations Council (WAEC) Chemistry 2021 Objective paper, with the correct answer and a full explanation.
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10. Which of the graphs illustrates the variation of the pH of a given volume of strong acid solution (y-axis) with the volume of strong base titrated against it (x-axis)?
- A. ICorrect
- B. II
- C. III
- D. IV
Explanation
As base is added to the acid, pH rises steadily then sharply at the equivalence point — the shape shown in graph I.
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