The Carboxyl Group (-COOH) Structure

Part of Carboxylic Acids · Section 4 of 15

Deep DiveUnit: Organic ChemistryGCSE

What Makes -COOH Special?

  • Combines a carbonyl group (C=O) with a hydroxyl group (OH)
  • The carbon is bonded to: oxygen (double bond), OH group, and the rest of the molecule
  • This structure allows the hydrogen to be released as H⁺ ions

This deep dive covers The Carboxyl Group (-COOH) Structure within Carboxylic Acids for GCSE Chemistry. Revise Carboxylic Acids in Organic Chemistry for GCSE Chemistry with 22 exam-style questions and 15 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 4 of 15 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.

Practice questions for Carboxylic Acids

What is the functional group present in all carboxylic acids?

  • A. -OH
  • B. C=C
  • C. -COOH
  • D. C=O only
1 markfoundation

Explain why carboxylic acids are described as weak acids.

2 marksstandard

Quick recall flashcards

What is the formula of ethanoic acid?
CH₃COOH
What are carboxylic acids?
Organic compounds containing the -COOH carboxyl functional group

22 questions on Carboxylic Acids: practise free

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