# A chemist has four organic compounds. The first is a straight-chain alkane with four carbon atoms. The second is an alkene with three carbon atoms. The third is an alcohol with five carbon atoms. The fourth is a carboxylic acid with two carbon atoms. State the name of each compound.

> Cambridge International IGCSE Chemistry (0620) — 11.2 Naming organic compounds · State · 4 marks

## Mark scheme (4 marks)

1. Names the four-carbon alkane correctly
2. Names the three-carbon alkene correctly
3. Names the five-carbon alcohol correctly
4. Names the two-carbon carboxylic acid correctly

## Key terms

- [alkane](https://www.gradenine.co.uk/glossary/alkane)
- [alkene](https://www.gradenine.co.uk/glossary/alkene)
- [alcohol](https://www.gradenine.co.uk/glossary/alcohol)
- [carboxylic acid](https://www.gradenine.co.uk/glossary/carboxylic-acid)

## Related

- [Revision notes for Cambridge International IGCSE Chemistry (0620)](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/a-chemist-has-four-organic-compounds-b4a41408) · Published by Druglandscape Ltd.