Bronsted-Lowry acids and bases Quiz
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5 questions, one answer each
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1. Which species acts as the base in HCl + H₂O → H₃O⁺ + Cl⁻?
- A. HCl
- B. H₂O
- C. H₃O⁺
- D. Cl⁻
2. What is the conjugate base of H₂SO₄?
- A. SO₄²⁻
- B. H₃SO₄⁺
- C. HSO₄⁻
- D. H₂O
3. Why can ammonia accept a proton?
- A. It contains hydroxide ions
- B. It is a gas
- C. It has a full outer shell
- D. It has a lone pair of electrons on nitrogen
4. In NH₃ + H₂O ⇌ NH₄⁺ + OH⁻, which pair is a conjugate acid–base pair?
- A. NH₃ and OH⁻
- B. NH₄⁺ and H₂O
- C. NH₄⁺ and NH₃
- D. NH₃ and H₂O
5. Which statement about acid–base equilibria is correct?
- A. Protons are transferred in both directions
- B. Protons are transferred only in the forward direction
- C. Electrons are transferred
- D. They only occur in water