Distinguishing aldehydes from ketones
What Distinguishing aldehydes from ketones means in Chemistry A-Level, as defined for OCR.
Definitions of Distinguishing aldehydes from ketones
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Reference: OCR
An aldehyde turns the reagent from orange to green, whereas a ketone is not oxidised so the reagent stays orange.
Ketones do not react with Tollens' reagent, so the reagent distinguishes aldehydes from ketones.
An aldehyde gives the silver deposit, whereas a ketone gives no change with Tollens’ reagent.
Topics that use Distinguishing aldehydes from ketones
- Carbonyl compounds (OCR A-Level)
- Chromatography and qualitative analysis (OCR A-Level)
Related terms
- Oxidation of aldehydes
- Reduction of silver(I) to silver metal
- Tollens' reagent
- 2,4-dinitrophenylhydrazine test
- 2,4-dinitrophenylhydrazone
- 2,4-dinitrophenylhydrazone derivative
- Acidified dichromate(VI) and alcohols
- Acidified dichromate(VI) as oxidising agent
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