Carboxylic Acids

Carboxylic Acids Quiz

Spec 4.34C–37C · Edexcel IGCSE Chemistry: Quiz

Studying this course? Keep your progress in one place.

Pick an answer for each. Quizzes never use energy.

5 questions, one answer each

Each answer is checked as you go, with why.

See all 5 questions

  1. 1. What functional group defines a carboxylic acid?

    • A. -OH
    • B. -COOH
    • C.
      C=C<
    • D. -COO-

  2. 2. Vinegar is an aqueous solution of which compound?

    • A. Methanol
    • B. Ethanoic acid
    • C. Ethyl ethanoate
    • D. Ethene

  3. 3. What gas is produced when a carboxylic acid reacts with a reactive metal?

    • A. Oxygen
    • B. Carbon dioxide
    • C. Hydrogen
    • D. Chlorine

  4. 4. A student adds ethanoic acid to sodium carbonate and observes fizzing. Which gas causes the fizzing, and how could it be confirmed?

    • A. Hydrogen, confirmed with a lit splint
    • B. Carbon dioxide, confirmed by turning limewater cloudy
    • C. Oxygen, confirmed by relighting a glowing splint
    • D. Chlorine, confirmed by bleaching litmus paper

  5. 5. A carboxylic acid and hydrochloric acid have the same concentration, but the carboxylic acid has a higher pH. Why?

    • A. The carboxylic acid contains no hydrogen ions
    • B. The carboxylic acid is a weak acid and only partially ionises
    • C. Hydrochloric acid is not a real acid
    • D. The carboxylic acid has a lower molecular mass

Quiz