AQA · Chemistry · 8462

GCSE Chemistry (AQA): Carboxylic Acids

Topic 7 — Organic Chemistry. Generated from the caption track of Cognito's lesson video "GCSE Chemistry - Carboxylic Acids (2026/27 exams)"; each card deep-links to the moment in the video it came from. Lesson 7.14 of Cognito's AQA GCSE Chemistry (Triple) course (Higher tier), filed under AQA Chemistry 8462. Teaching by Cognito — https://cognitoedu.org/coursesubtopic/c2-gcse-aqa-h-t_7.14.

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  1. Why are carboxylic acids classed as weak acids?

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    They do not fully ionise — only some molecules release their hydrogen ions.

  2. The carboxylic acid with one carbon atom is called ? acid.

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    methanoic

  3. What three products form when a carboxylic acid reacts with a metal carbonate?

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    A salt, water and carbon dioxide.

  4. How are carboxylic acids made from alcohols?

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    By oxidising the alcohol with an oxidising agent, which effectively adds an oxygen.

  5. Which carboxylic acid is produced by oxidising butanol?

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    Butanoic acid — it keeps the same four carbon atoms, so the stem stays 'but-'.

  6. Negative ions formed by carboxylic acids have names ending in ?.

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    -anoate

  7. Name the carboxylic acid with three carbon atoms.

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    Propanoic acid.

  8. What suffix do the names of carboxylic acids end in?

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    -anoic acid (e.g. propanoic acid).

  9. Which salt is formed when ethanoic acid reacts with potassium carbonate?

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    Potassium ethanoate.

  10. What is the functional group of carboxylic acids?

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    -COOH.

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