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Explain the machanism of chlorinantion of methane. |
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Answer» Solution :Mechanism of chlorination of METHANE involves three types. (1) Initiation: Chlorine absorbs ENERGY and undergoes homolysis to give chlorine free radicals. `Cl - Cl overset(""hy"")(rarr) 2Cl^(.)` Step 2 : Propagation: Chlorine free RADICAL reacts with methane to give methyl free radical. `Cl^(.) CH_(4) rarr CH_(3)^(.) + HCl` The methyl free radical reacts with chlorine to form methyl chloride and chlorine free radical. `CH_(3)^(.) + Cl_(2) rarr CH_(3)Cl + Cl^(.)` Step 3: Termination: Free radials combine to form stable products. `Cl^(.) + Cl^(.) rarr Cl_(2) ("Chlorine")` `CH_(3)^(.)+ CH_(3)^(.) rarr C_(2) H_(6)` (Ethane) `CH_(3)^(.) + Cl^(.) rarr CH_(3) Cl` (Methyl Chloride) |
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