Question

cyclohexene react with Br2 in presence of heat and UV light​

Answer 1

Answer:

The reaction of Bromine with cyclohexene in the presence of sunlight is a substitution reaction. The reaction will takes place at allylic carbon. The allylic hydrogen get substituted by the bromine atom. It will give 1,2- dibromocyclohexane as the product

Answer 2

•According to the question we have to determine the product which is formed from the reaction between cyclohexane and bromine (in the presence of UV light or ultra violet light) ,

and the product would be 3-bromocyclohexene, because when an alkene reacts with bromine in the presence of UV light ,free redical substitution reaction is happened. The bromine didn't react with alkene in sunlight ,so to obtain 3-bromocyclohexene ultra violet light in required, without ulta violet ray 3-bromocyclohexene cannot be obtained.