Which one of the following reactions proceeds through free radical chain mechanism?

Question

Which one of the following reactions proceeds through free radical chain mechanism? (A) Addition of HBr on ethene (B) Halogenation of benzene in the presence of FeBr3 (C) Photochemical chlorination of methane (D) Hydrolysis of tert-butyl chloride with aqueous KOH

Tardigrade Admin · Accepted Answer

	Reaction	Mechanism followed
a	Addition of HBr on ethene	Ionic addition reaction
b	alogenation of benzene in the presence of FeBr $_{3}$	Electrophilic substitution reaction
c	Photochemical chlorination of methane	Free radical substitution
d	Hydrolysis of tert-butylchloride with aq. KOH	Nucleophilic substitution
e	Addition of $N a H S O_{3}$ on acetone	Nucleophilic addition

Thus, photochemical chlorination of methane proceeds via free radical chain mechanism.

Q. Which one of the following reactions proceeds through free radical chain mechanism?

Addition of $H B r$ on ethene

Halogenation of benzene in the presence of $F e B r_{3}$

Photochemical chlorination of methane

Hydrolysis of tert-butyl chloride with aqueous $K O H$

Addition of $N a H S O_{3}$ on acetone

Q. Which one of the following reactions proceeds through free radical chain mechanism?

Addition of HBr on ethene

Halogenation of benzene in the presence of FeBr3​

Photochemical chlorination of methane

Hydrolysis of tert-butyl chloride with aqueous KOH

Addition of NaHSO3​ on acetone

Addition of $H B r$ on ethene

Halogenation of benzene in the presence of $F e B r_{3}$

Hydrolysis of tert-butyl chloride with aqueous $K O H$

Addition of $N a H S O_{3}$ on acetone