Chemistry A-Level
Tollens' and Fehling's tests for aldehydes
What Tollens' and Fehling's tests for aldehydes means in Chemistry A-Level, as defined for OCR.
Definition of Tollens' and Fehling's tests for aldehydes
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Reference: OCR
Aldehydes reduce Tollens' reagent to a silver mirror and reduce Fehling's solution from blue to a brick-red precipitate, whereas ketones do not.
Topics that use Tollens' and Fehling's tests for aldehydes
- Chromatography and qualitative analysis (OCR A-Level)
Related terms
- 2,4-dinitrophenylhydrazone derivative
- Acidified dichromate(VI) and alcohols
- Adsorption and differential movement
- Adsorption and spot position
- Bromine water and alkenes
- Bromine water test for alkenes
- Carbon–halogen bond strength and reactivity
- Carbonyl compounds: aldehydes and ketones
Using Tollens' and Fehling's tests for aldehydes in the exam
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