Quiz on "Examples of Alkanes and Alkenes and a Test for Alkenes"

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   alkane      alkene      butane      colourless      double covalent bond      energy      ethane      ethene      fuels      methane      orange      polymers      propane      propene      resource      saturated alkane      saturated hydrocarbon      single covalent bond      unsaturated alkene      unsaturated hydrocarbon      valuable   
1. Some of the useful smaller molecules from cracking are used as since they release a large amount of heat on burning. However it is the s called s which are used in this way as the s known as s which burn with a smokey flame AND they are a much more chemical for making other very useful compounds like (plastics).

2. Identify the following hydrocarbon compounds by name and whether they are a saturated hydrocarbon or an unsaturated hydrocarbon, and classify them as an alkane or alkene.
2a. Image154.gif or Image207.gif is called , a , classed as an
2b. Image917.gif or Image919.gif is called , an , classed as an
2c. Image148.gif or Image202.gif is called , a , classed as an
2d. Image157.gif or extra2.gif is called , a , classed as an
2e. Image921.gif or Image925.gif is called , an , classed as an
2f. Image151.gif or Image204.gif is called , a , classed as an

3. To test for an alkene (which is ) you mix it with a few drops of bromine water when it changes from to . If you repeat the test with an alkane, the bromine water remains . This simple test can readily distinguish between a (all C-C s) and an (with a C=C ).