The Carboxylic Acid Family Structure
Part of Carboxylic Acids — GCSE Chemistry
This deep dive covers The Carboxylic Acid Family Structure within Carboxylic Acids for GCSE Chemistry. Revise Carboxylic Acids in Organic Chemistry for GCSE Chemistry with 20 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 2 of 14 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 2 of 14
Practice
20 questions
Recall
15 flashcards
🔬 The Carboxylic Acid Family Structure
General Formula: CₙH₂ₙ₊₁COOH (or CₙH₂ₙO₂)
- All carboxylic acids contain the -COOH functional group
- The carboxyl group is always at the end of the carbon chain
- Example: Ethanoic acid = CH₃COOH = acetic acid (vinegar)
The First Four Carboxylic Acids (Essential to memorise!):
Figure 1: The -COOH group contains both a C=O (carbonyl) and an -OH combined. The H in -COOH is the acidic hydrogen that can be donated as H⁺ in solution.