What are some test examples for unsaturated hydrocarbons?

The most common is the the decolorization of bromine water. Bromine water is kind of an angry looking yellow brown color. When you add it to an alkene, it will decolorize (yellow-brown color will go away). It is a pretty simple test and quite rapi... read more

It is a pretty simple test and quite rapid. Alkynes will also give a positive test. An alternative (or additional) test is to treat with acidic KMnO4. If an alkene is present, the purple color will be replaced with a light yellow color and you will see the appearance of MnO2 ppt. This test is not as specific as aldehydes will also react. read more

Aromatic hydrocarbons, also known as arenes, are unsaturated hydrocarbons that contain the benzene ring, or aromatic ring, in their chemical structure. The benzene ring is a hexagon with alternating double bonds between carbon atoms - so it has three double bonds within the ring. read more

The hydrocarbons which contain C-C multiplebond (double or triple bonds or both) are called unsaturated hydrocarbons. They are further classified as. Alknes containing double bond for eg: ethene , butene etc. Alkynes containing tripple bond for eg: ethyne , propyne etc. read more