Lesson 3.1.12.1
3.1.12.1 Brønsted–Lowry acid–base equilibria in aqueous solution Quiz: AQA Chemistry, Unit 1
20 questions
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Lesson 3.1.12.1, Brønsted–Lowry acid–base equilibria in aqueous solution: 20 multiple choice questions for the AQA Chemistry (7405), Unit 1: Physical chemistry, written with Revision Ninja.
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The 20 questions
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How is a Brønsted-Lowry acid defined?
- Proton donor
- Proton acceptor
- Electron donor
- Electron acceptor
-
How is a Brønsted-Lowry base defined?
- Proton acceptor
- Electron donor
- Proton donor
- Electron acceptor
-
What is the conjugate base of nitric acid, HNO3?
- H3O^+
- NO2^-
- NH4^+
- NO3^-
-
What is the conjugate acid of ammonia, NH3?
- H3O^+
- NH2^-
- NH4^+
- OH^-
-
What is the conjugate base of water, H2O?
- O^2-
- OH^-
- H2O2
- H3O^+
-
What is the conjugate acid of water, H2O?
- O^2-
- H3O^+
- OH^-
- H2
-
Which species acts as the Brønsted-Lowry acid in the reaction HCl + H2O -> H3O+ + Cl-?
- Cl-
- H2O
- H3O+
- HCl
-
Which reactant acts as the Brønsted-Lowry acid in the reaction NH3 + H2O ⇌ NH4+ + OH-?
- NH4+
- OH-
- H2O
- NH3
-
Which species can act as both a Brønsted-Lowry acid and a Brønsted-Lowry base?
- NH4+
- CO3 2-
- HCO3-
- HCl
-
Which species acts as the Brønsted-Lowry base in the reaction NH3 + HCl -> NH4+ + Cl-?
- HCl
- Cl-
- NH3
- NH4+
-
What defines a strong acid in an aqueous solution?
- Low electrical conductivity
- Partial dissociation
- Reversible ionisation
- Complete dissociation
-
What defines a weak acid in an aqueous solution?
- Partial dissociation
- Irreversible ionisation
- Complete dissociation
- Zero hydrogen ions
-
Which of these is a conjugate acid-base pair?
- HCl and H2O
- HCl and Cl^-
- NH3 and OH^-
- H3O^+ and OH^-
-
Which species forms when the ethanoate ion, CH3COO^-, accepts a proton?
- CH3COOH
- CH3COO^2-
- CH3OH
- CH3CO^+
-
Why does the dissociation equilibrium of ethanoic acid in water lie far to the left?
- Rapid product removal
- High pH value
- Complete acid dissociation
- Partial acid dissociation
-
Which particle transfer occurs during all Brønsted-Lowry acid-base reactions?
- Neutron transfer
- Hydroxide transfer
- Electron transfer
- Proton transfer
-
Which reactant acts as the Brønsted-Lowry base in the reaction HNO3 + H2O -> H3O+ + NO3-?
- H3O+
- NO3-
- HNO3
- H2O
-
Which species is the conjugate acid of the hydrogen phosphate ion, HPO4^2-?
- PO4^3-
- HPO4^3-
- H3PO4
- H2PO4^-
-
By what species does a Brønsted–Lowry acid differ from its conjugate base?
- Two protons
- One proton
- One electron
- One hydroxide ion
-
Why is ammonia classified as a Brønsted–Lowry weak base in aqueous solution?
- Partial proton donor
- Partial proton acceptor
- Complete proton acceptor
- Complete proton donor
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