Chemistry A-Level
Reflux
What Reflux means in Chemistry A-Level, as defined for AQA, OCR.
Definitions of Reflux
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Reference: OCR
Heating a reaction mixture so that volatile vapours are returned to the reaction flask, preventing loss of reactants and solvent.
Continuous boiling and condensing of a reaction mixture to ensure the reaction goes to completion without losing volatile reactants or products.
Topics that use Reflux
- Elimination (AQA A-Level)
- Alcohols, haloalkanes and analysis - 4.2.3 Organic synthesis (OCR A-Level)
Related terms
- Alcohol versus phenol discrimination
- Aldehyde versus ketone discrimination
- carbocation intermediate
- competing reactions
- condenser water direction
- dehydration of alcohols
- Density and layer order
- Distillation
Using Reflux in the exam
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