Presentation on theme: "Distinguishing Between Alkanes and Alkenes"— Presentation transcript:
1Distinguishing Between Alkanes and Alkenes Aim:To investigate a way of distinguishing between an alkane and an alkene.
2Method:Collect apparatusUsing separate dropper for each, put 10 drops of each hydrocarbon separate test tubesStopper each test tubeNote what happens
3Results: 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.
4Hexane with bromine water No effect on bromine waterHexene with bromine waterAlkenes decolourise bromine water
5Unsaturated An unsaturated molecule contains at least one carbon to carbon double bond. Saturated A saturated molecule contains carbon to carbon single bonds only.