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Musa Hailote
Apr 29, 2023

Explain in detail about Confirmation of cyclohexene ?

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Anonymous
Apr 30, 2023
Cyclohexene is a cyclic unsaturated hydrocarbon with the formula C6H10. It is a clear, colorless liquid with a pungent odor. The confirmation of cyclohexene is an important process that involves determining the presence of the double bond in the cyclohexene molecule. One of the commonly used methods for the confirmation of cyclohexene is the reaction with bromine water. Bromine water is a reddish-brown solution that contains bromine (Br2) dissolved in water. When bromine water is added to cyclohexene, a chemical reaction occurs, which results in the formation of a colorless compound. The reaction between bromine water and cyclohexene can be represented as follows: C6H10 + Br2 → C6H10Br2 In this reaction, the double bond in the cyclohexene molecule breaks, and the bromine atoms add to the carbon atoms in the molecule. The resulting compound, 1,2-dibromocyclohexane, is a colorless liquid that can be easily separated from the reaction mixture. The confirmation of cyclohexene can also be carried out using spectroscopic methods such as infrared (IR) and nuclear magnetic resonance (NMR) spectroscopy. In IR spectroscopy, the absorption of infrared radiation by the cyclohexene molecule is studied. The presence of a characteristic absorption band at around 1640 cm-1 indicates the presence of a C=C double bond in the molecule. In NMR spectroscopy, the nuclear magnetic resonance of the hydrogen atoms in the cyclohexene molecule is studied. The presence of a characteristic signal at around 5-6 ppm indicates the presence of a C=C double bond in the molecule. In summary, the confirmation of cyclohexene involves the reaction of the molecule with bromine water, which results in the formation of 1,2-dibromocyclohexane. Spectroscopic methods such as IR and NMR spectroscopy can also be used to confirm the presence of the double bond in the molecule.
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