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Explainthe mechanisim of the reaction betweeen methane and chlorine |
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Answer» SOLUTION :Methanereacts withchloridein THEPRESENCE of lightwhichproceeds through the freeradicaltermination (i) Chaininitiation: Thechainis initiatedby UVleadingto homolyticflssionofchlorinemolecules intoradicals.  Harewe choose`Ci- CI` bondfor flssionbecauseC-C andC-Hbondsare strongerthanCi- CI bond. (a)Chlorinefree radials attackmoleculeand breaksC- Hbondresulting inthegenerationof methylfreeradicals  (b)Themethylfreeradicalthusobtainedattackssecondmolecule of chlorineto givechloromethane`(cH_(3)CI)`and achlorinefreeradicalfollows  (c ) This chlorinefree radicalthento step(a) andboth9a) and (b)arerepeted manytimes anda chainreactionis SET up (III)Chaintermination: Aftersometimethe reactionstopsdue to theconsumption ofreactan and thechain isterminatedby thecombinationof treeradicals 
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