Question

Complete the reaction a)C6H5N2Cl+KI->
b)CH2=CH2+Br2+CCl4->
c)CH3CH2CH=CH2+HBr+peroxide>

Answer 1

Answer :

(a) In this reaction, benzene diazonium chloride react with potassium iodide to  give product as iodo-benzene and potassium chloride.

(b) This is a bromination reaction of alkene.

In this reaction, ethene react with bromine in presence of carbon tetrachloride to give product as 1,2-dibromoethane.

(c) In this reaction, butene react with hydrogen bromide in presence of peroxide to give product as bromobutane.

This reaction proceed by anti-markovnikov's rule.

According to this rule, the hydrogen of HBr attached to the carbon with less hydrogen substituents and bromine attached to the carbon with more hydrogen substituents.