Presentation on theme: "Distinguishing Between Alkanes and Alkenes"— Presentation transcript:
1 Distinguishing Between Alkanes and Alkenes Aim:To investigate a way of distinguishing between an alkane and an alkene.
2 Method:Collect apparatusUsing separate dropper for each, put 10 drops of each hydrocarbon separate test tubesStopper each test tubeNote what happens
3 Results: Name of Hydrocarbon Effect on bromine water Hexane Hexene Doesn’t decolourise bromine waterDoes decolourise bromine waterConclusion:Bromine water can be used to distinguish between an alkane and an alkene. This is because an alkene decolourises bromine water but an alkane doesn’t.
4 Hexane with bromine water No effect on bromine waterHexene with bromine waterAlkenes decolourise bromine water
5 Unsaturated An unsaturated molecule contains at least one carbon to carbon double bond. Saturated A saturated molecule contains carbon to carbon single bonds only.