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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Why are carboxylic acids classed as weak acids?
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They do not fully ionise — only some molecules release their hydrogen ions.
The carboxylic acid with one carbon atom is called ? acid.
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methanoic
What three products form when a carboxylic acid reacts with a metal carbonate?
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A salt, water and carbon dioxide.
How are carboxylic acids made from alcohols?
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By oxidising the alcohol with an oxidising agent, which effectively adds an oxygen.
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-'.
Negative ions formed by carboxylic acids have names ending in ?.
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-anoate
Name the carboxylic acid with three carbon atoms.
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Propanoic acid.
What suffix do the names of carboxylic acids end in?
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-anoic acid (e.g. propanoic acid).
Which salt is formed when ethanoic acid reacts with potassium carbonate?
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Potassium ethanoate.
What is the functional group of carboxylic acids?
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-COOH.
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