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Question
Which among the following methods is not suitable for the preparation of alkyl chlorides?
Options
Addition of HCI to alkene
Treating alcohols with Lucas reagent
By heating alcohols with thionyl chloride
Chlorination of alkanes in presence of sunlight
MCQ
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Solution
Chlorination of alkanes in presence of sunlight
Explanation:
Alkanes are chlorinated. The synthesis of alkyl chloride in the presence of sunlight is not recommended because chlorination of alkanes produces a complicated mixture of isomeric mono and polyhaloalkanes that is difficult to separate as pure chemicals. As a result, the yield of each chemical is minimal.
\[\ce{CH3CH2CH2CH3 ->[Cl2/UV light] CH3CH2CH2CH2Cl + CH3CH2CHClCH3}\]
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Methods of Preparation of Alkyl Halides
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