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Can someone give guidance on this? The unknown compound is either pentane, 2-pen

ID: 679763 • Letter: C

Question

Can someone give guidance on this? The unknown compound is either pentane, 2-pentene, benzene orcyclopentane. The red color of bromine is decolorized when bromine is addedto the unknown/. Which one of the above is it and how do you calculateit? Is there some time of rule? Can someone give guidance on this? The unknown compound is either pentane, 2-pentene, benzene orcyclopentane. The red color of bromine is decolorized when bromine is addedto the unknown/. Which one of the above is it and how do you calculateit? Is there some time of rule?

Explanation / Answer

From what I remember,2-pentene is the unknown
Bromine in CCl4is red. When brominereacts with an alkene or alkyne, the alkyl halide formed is colorless; hence a disappearance of thered color is a positive test forunsaturation. Addition of Chlorine orBromine to the Alkene Double Bond. Thehalogen molecule always adds to adjacent carbon atoms. Examples of chlorine or bromine addition to: 2-pentene i hope that helps. Makesure to check this answer. i hope that helps. Makesure to check this answer.