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Alcohol production




AQA Content

Explain the meaning of the term biofuel
Justify the conditions used in the production of ethanol by fermentation of glucose
Write equations to support the statement that ethanol produced by fermentation is a carbon neutral fuel and give reasons why this statement is not valid
Outline the mechanism for the formation of an alcohol by the reaction of an alkene with steam in the presence of an acid catalyst
Discuss the environmental (including ethical) issues linked to decision making about biofuel use.

Specification Notes

Alcohols are produced industrially by hydration of alkenes in the presence of an acid catalyst.
Ethanol is produced industrially by fermentation of glucose. The conditions for this process.
Ethanol produced industrially by fermentation is separated by fractional distillation and can then be used as a biofuel.



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