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electrophilic substitution. and UV light or heat is required to all the reaction to proceed
A substitution reaction is one where one functional group replaces another. For example, the -OH group on an alcohol could be replaced by a Bromine atom from NaBr.
The hydroxyl group in phenol is an activating ortho/para director, but has some slight steric hindrance too ortho position substitution. Therefore, the predominant product of reaction between phenol and bromine will be 4-bromophenol, if reaction conditions are carefully controlled. With excess bromine, di- and tri-bromo phenols will be formed.
At room temperature, the halogens like bromine don't react with cyclohexane. Hence the dark brown color of the bromine water remains. When heated, the -H atoms are replaced with -Br(substitution reaction).
The Nucleophilic substitution of Halo alkanes
It will turn colorless because bromine is an unsaturated compound and unsaturated compound have double bonds
Toluene forms from the reaction of bromine with acetophenone.
Yes it can undergo a substitution reaction, however conditions have to be just right. if there is a very limited amount of Bromine available OR it is at very high temperatures > 400 C. This will allow for a bromide radical to take the place of a Hydrogen atom on either side of the ethane molecule forming trans- 1,2-dibromoethane (primarily) with some of the cis form of the same molecule.Typically this is an addition reaction across the double bond of an ethene molecule resulting in the same products.
no reaction
The reaction between methane and bromine is a photochemical reaction. Refer to the related link below.
Bromine dissapear in this reaction !
no reaction