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  4. The chlorination of ethane is an example for which type of the following reactions?

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Q. The chlorination of ethane is an example for which type of the following reactions?

EAMCETEAMCET 2012

Solution:

Chlorination of ethane takes place by free radical substitution and involves the following steps
Step I :- Initiation step
$Cl_2 \ce{->[h\nu]} 2Cl^{\bullet}$
Step II :- Propagation step
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Step -III :- Termination step
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$2CH_3CH^{\bullet}_{2} \to CH_3CH_2 CH_2CH_3$