Zusammenfassung der Ressource
Testing for Organic Functional Groups
- Alkenes
- Bromine Water Br2 (aq)
- Bromine water turns from orange to colourless
- Haloalkane
- Aqueous silver nitrate and ethanol (the isolate the halide ion)
- Chlorine: White precipitate
Bromine: cream precipitate
Iodine: Yellow precipitate
- Phenols
- Bromine water
- 2,4,6-tribromophenol
- Colourless
- White Precipitate
- Doesn't react with carbonates
- Carbonyls (Ketones + Aldehydes)
- Brady's Reagent (2,4-DNP)
- Orange Precipitate is formed who's melting point can be tested for identification of substances
- Aldehyde
- Tokens Reagent
- Silver Mirror
- No reaction with Ketones
- Oxidation of Alcohols
- Primary
- Acidified Potassium Dichromate
- Turns from orange to green and an aldehyde and then a carboxylate acid is formed
- Secondary
- Acidified Potassium Dichromate