Start learning →

JAMB UTME Acid-Base Equilibria — practice questions

Explore 29 free Acid-Base Equilibria questions in JAMB UTME Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

Practise Acid-Base Equilibria with Quill →

Acid-Base Equilibria questions and exercises with answers

Showing questions 1–29 of 29.

Under the Bronsted-Lowry definition, what does an acid do?Read the answer and worked solution →What is transferred in a Bronsted-Lowry acid-base reaction?Read the answer and worked solution →What is left after an acid has donated its proton?Read the answer and worked solution →A base accepts a proton. What is the species it becomes called?Read the answer and worked solution →How did Arrhenius define an acid?Read the answer and worked solution →How did Arrhenius define a base?Read the answer and worked solution →What did Humphry Davy establish about acids in 1815?Read the answer and worked solution →When is an aqueous solution described as neutral?Read the answer and worked solution →What makes an aqueous solution acidic?Read the answer and worked solution →What makes an aqueous solution basic?Read the answer and worked solution →How are the relative strengths of acids ranked?Read the answer and worked solution →What fraction of a strong acid ionizes when it dissolves in water?Read the answer and worked solution →Two acids are at the same concentration. What does the stronger one produce?Read the answer and worked solution →What name is given to the equilibrium constant for the ionization of an acid?Read the answer and worked solution →What does it mean to call an acid weak?Read the answer and worked solution →In a solution of a weak acid, which species is present in the greatest concentration?Read the answer and worked solution →How does a weak acid affect the hydronium ion concentration of a solution?Read the answer and worked solution →What does measuring the pH of a weak acid solution of known concentration reveal?Read the answer and worked solution →The Bronsted-Lowry definition centres on which particle?Read the answer and worked solution →A proton is what remains when a hydrogen atom loses what?Read the answer and worked solution →What did Robert Boyle observe acids do to certain natural dyes?Read the answer and worked solution →Which taste was recognised as characteristic of acids in the eighteenth century?Read the answer and worked solution →Which compounds are named as the most familiar bases?Read the answer and worked solution →Sodium chloride solution is neutral. What does that say about its ions?Read the answer and worked solution →Proton donor or acceptor?Read the answer and worked solution →Catch the acidic signsRead the answer and worked solution →Acids and bases bingoRead the answer and worked solution →Strong or weak?Read the answer and worked solution →Spot the odd oneRead the answer and worked solution →

Worked practice questions

Under the Bronsted-Lowry definition, what does an acid do?

  1. It donates a proton to another compound
  2. It accepts a proton from another compound
  3. It donates an electron pair to a base
  4. It accepts an electron pair from a base
Show answer and solution

Correct answer: A. It donates a proton to another compound

1. The Bronsted-Lowry model is built around the proton, the hydrogen ion. 2. Whichever compound hands that proton over is the acid. 3. Whichever compound takes it up is the base. 4. Donating or accepting an electron pair is the Lewis model, a later and more general one. _Source: OpenStax Chemistry (CC BY 4.0), Ch 14 "Acid-Base Equilibria", section 14.1 Brønsted-Lowry Acids and Bases_

Open this question →

What is transferred in a Bronsted-Lowry acid-base reaction?

  1. A neutron, from base to acid
  2. A proton, from acid to base
  3. An electron, from acid to base
  4. A hydroxide ion, from acid to base
Show answer and solution

Correct answer: B. A proton, from acid to base

1. The reaction is defined entirely by the movement of one particle. 2. That particle is the proton, and it travels from the donor to the acceptor. 3. The donor is the acid and the acceptor is the base, by definition. 4. Nothing in the model requires water, so it covers reactions the Arrhenius picture cannot. _Source: OpenStax Chemistry (CC BY 4.0), Ch 14 "Acid-Base Equilibria", section 14.1 Brønsted-Lowry Acids and Bases_

Open this question →

What is left after an acid has donated its proton?

  1. Its conjugate acid
  2. A neutral salt
  3. Its conjugate base
  4. A hydronium ion
Show answer and solution

Correct answer: C. Its conjugate base

1. Losing a proton leaves a species one hydrogen ion short of the original acid. 2. That species is called the conjugate base of the acid. 3. It counts as a base because it can take the proton back and re-form the acid. 4. So HF gives the fluoride ion, and sulfuric acid gives the hydrogensulfate ion. _Source: OpenStax Chemistry (CC BY 4.0), Ch 14 "Acid-Base Equilibria", section 14.1 Brønsted-Lowry Acids and Bases_

Open this question →

How to practise

  1. Choose a Acid-Base Equilibria question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.