JAMB Chemistry 2025 Objective — Question 40
Question 40 of 40 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2025 Objective paper, with the correct answer and a full explanation.
Advertisement
Which pair forms a buffer solution?
- A. HCl and NaCl
- B. CH₃COOH and CH₃COONaCorrect
- C. NH₄Cl and NaOH
- D. All of the above
Explanation
A buffer = weak acid + its conjugate base (or weak base + conjugate acid). CH₃COOH (weak acid) and CH₃COONa (conjugate base) form a buffer. HCl is a strong acid — it cannot form a buffer.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.