add (dropwise and with shaking) 1% bromine in cyclohexane. Record your observations. the red color persists), add 5 more drops of the bromine … Cyclohexene is reacted with bromine in carbon tetrachloride in the dark. To any sample that gives a negative test after adding 10 drops of bromine solution (i.e. Chemicals: cyclohexene benzene 10-2 M aqueous bromine (1.28 g bromine / 800 mL H2O) 10-4 M aqueous KMnO4 (12.6 mg KMnO4 / 800 mL H2O) Apparatus and glass wares: 4 graduated cylinders … Keep count of the number of drops needed to have the color persist; DO NOT ADD more than 10 drops. … 1. cyclohexane and bromine. C6H10 + Br2 ---> … The product of the reaction is: I know that reaction with bromine in $\ce{CCl4}$ will result in vicinal dibromocyclohexane. Pour two samples of heptane and two samples of cyclohexene into separate test tubes in a lighted rack. Add one or two drops of 1% bromine in dichloromethane to one sample of each hydrocarbon. The flippant answer to “Why will bromine decolourize when it reacts with cyclohexene?” is … “Because bromine reacts with cyclohexene.” Maybe the reason you’re not understanding is because you think cyclohexene somehow makes the bromine … So the … C6H12 + Br2 ---> C6H11Br + HBr (the is a substituion reaction, can only be done when sunlight is present) 2. cyclohexene and bromine.

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