JAMB Mathematics 2022 Objective — Question 37
Question 37 of 41 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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Since NH₄Cl is formed from a strong acid (HCl) and a weak base (NH₄OH), the hydrolysis of NH₄Cl gives an acidic solution. Which of the following is correct?
- A. NH₄Cl solution is basic
- B. NH₄Cl solution is acidicCorrect
- C. NH₄Cl solution is neutral
- D. NH₄Cl does not hydrolyse
Explanation
NH₄Cl is a salt of strong acid (HCl) and weak base (NH₃). It undergoes hydrolysis: NH₄⁺ + H₂O ⇌ NH₃ + H₃O⁺, giving an acidic solution.
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