# Ethanol can be produced by two different methods: fermentation of glucose, and the hydration of ethene. Compare these two methods of producing ethanol, referring to the raw materials used and one other difference between the methods.

> Eduqas GCSE Chemistry — C7 Organic chemistry · Compare · 4 marks

## Mark scheme (4 marks)

1. Fermentation uses glucose (from plants/sugar cane/crops) whereas hydration of ethene uses ethene (from crude oil/a non-renewable source)
2. Fermentation uses a renewable raw material whereas hydration of ethene uses a non-renewable raw material (crude oil)
3. Fermentation produces a dilute solution of ethanol whereas hydration of ethene produces pure/concentrated ethanol directly
4. Fermentation is a slow/batch process whereas hydration of ethene is a continuous/faster process

## Key terms

- [fermentation](https://www.gradenine.co.uk/glossary/fermentation)
- [hydration](https://www.gradenine.co.uk/glossary/hydration)

## Related

- [Revision notes for Eduqas GCSE Chemistry](https://www.gradenine.co.uk/learn)
- [How to answer "Compare" questions](https://www.gradenine.co.uk/tools/command-word-cheatsheet)
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Source: [GradeNine](https://www.gradenine.co.uk/q/ethanol-can-be-produced-by-two-aae9aec6) · Published by Druglandscape Ltd.