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Hi. I don’t understand why the answer given is C. Why can’t I choose D?

Hi. I don’t understand why the answer given is C. Why can’t I choose D?

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Grade:12th pass

1 Answers

Aarti Gupta
askIITians Faculty 300 Points
9 years ago
Reaction of CH3Cl and Cl2 in presence of light as given in the question is an example of free-radical substitution reaction of alkyl halides with halogen.Reaction involves substitution of an halogen in place of hydrogen and removal of molecule of HCl step by step.
The answer given is C and not D.This can be understand as follows-
In one of the propogation step CH2Cl is generated-
CH3Cl+ Cl---------> CH2Cl+ HCl
Now in termination step it is possible that CH2ClCH2Cl is formed in traces in the following manner-
2CH2Cl---------> CH2ClCH2Cl

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