Explain the mechanism of chlorination of Methane, with equations.

1.	Explain the mechanism of chlorination of Methane, with equations.
Answer» Mechanism of chlorination of methane involves three types. Step 1: Initiation : Chlorine absorbs energy and undergoes homolysis to give chlorine free radicals. Cl - Cl + hy → 2Cl⁺ Step 2: Propagation : Chlorine free radical reacts with methane to give methyl free radical. Cl^• + CH₄ → CH₃^• + HCl The methyl free radical reacts with chlorine to form methyl chloride and chlorine free radical. CH₃^• + Cl₂ → CH₃Cl + Cl^• Step 3: Termination: Free radicals combine to form stable products. Cl^• + Cl^• → Cl₂ (Chlorine) CH₃^• + Cl^• → C₂H₆ (Ethane) CH₃^• + Cl^• → CH₃Cl (Methyl Chloride)

Answer»

Mechanism of chlorination of methane involves three types.

Step 1: Initiation : Chlorine absorbs energy and undergoes homolysis to give chlorine free radicals.

Cl - Cl + hy → 2Cl⁺

Step 2: Propagation : Chlorine free radical reacts with methane to give methyl free radical.

Cl^• + CH₄ → CH₃^• + HCl

The methyl free radical reacts with chlorine to form methyl chloride and chlorine free radical.

CH₃^• + Cl₂ → CH₃Cl + Cl^•

Step 3: Termination: Free radicals combine to form stable products.

Cl^• + Cl^• → Cl₂ (Chlorine)

CH₃^• + Cl^• → C₂H₆ (Ethane)

CH₃^• + Cl^• → CH₃Cl (Methyl Chloride)

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