Functional tests 0.0 / 5 ? ChemistryFunctional Group testsA2/A-levelWJEC Created by: KristinaSwobodaCreated on: 16-10-13 18:05 Carboxylic Acid Add Sodium Carbonate: Effervescence, gas turns limewater milky as it's CO2 1 of 7 Halogenoalkanes Add NaOH, HNO3, AgNO3: Cl-= white ppt, Br-=cream ppt, I-= yellow ppt. 2 of 7 Alkanes and Alkenes Add orange Bromine water at room temp: Alkane: no reaction, Alkene: orange colour immediately decolourised 3 of 7 Amine Add Nitrous acid(HCl+ Sodium Nitrile in ice): blue Bubbles of Nitrogen given off 4 of 7 Carbonyl(aldehyde/ketone) Add 2,4-DNP: Orange Crystalline ppt. 5 of 7 Alcohol. Add Ethanoic acid, conc Sulphuric acid + heat: fruity pear drop smell. 6 of 7 Oxidation of alcohols. Add Sulphuric acid + Potassium dichromate +heat: Colour change from orange to green. 7 of 7
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