why preparation of haloalkanes from SOCl2 is the best method
Alcohols on tratment with Sulphonyl Chloride[SOCl2](most preferrable) gives haloalkanes !
CH3CH2OH + SOCl2 ----------> CH3CH2Cl + SO2 + HCl
The Separation of the Haloalkane & Hydrogen chloride & Sulpher di-oxide are easier because SOCl2 & HCl are volaitle !!
Thus this is the generally eaier way to prepare Haloalkanes !!