# Esters are volatile compounds with distinct smells and are commonly used in perfumes and flavourings. State the functional group present in an ester, name the two types of organic compound that react together to form an ester, and state the type of reaction by which an ester is formed.

> Pearson Edexcel International GCSE Chemistry (4CH1) — 4.7 Esters · State · 4 marks

## Mark scheme (4 marks)

1. Functional group of an ester is –COO–
2. A carboxylic acid is one of the reactants
3. An alcohol is the other reactant
4. The type of reaction is condensation (reaction)

## Key terms

- [ester](https://www.gradenine.co.uk/glossary/ester)
- [functional group](https://www.gradenine.co.uk/glossary/functional-group)

## Related

- [Revision notes for Pearson Edexcel International GCSE Chemistry (4CH1)](https://www.gradenine.co.uk/learn)
- [How to answer "State" questions](https://www.gradenine.co.uk/tools/command-word-cheatsheet)
- [Practice this with AI marking (free)](https://www.gradenine.co.uk/start)

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Source: [GradeNine](https://www.gradenine.co.uk/q/esters-are-volatile-compounds-with-distinct-2ab9e3b3) · Published by Druglandscape Ltd.