Organic Compounds Containing Halogens Question 72
Question: Best method of preparing alkyl chloride is
[MH CET 2004]
Options:
A) $ ROH+SOCl_2\xrightarrow{\ \ \ \ \ \ \ \ \ } $
B) $ ROH+PCl_5\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ \ } $
C) $ ROH+PCl_3\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ \ } $
D) $ ROH+HCl\xrightarrow{anhy\text{. }ZnCl_2} $
Show Answer
Answer:
Correct Answer: A
Solution:
The chlorination of alcohol by $ SOCl_2 $ (thionyl chloride) is the best method for the preparation of alkyl halides as in this method all the other product are gaseous and thus halides are obtained on quite pure state $ R-OH+SOCl_2\xrightarrow{\Delta }R-Cl+HCl\uparrow +SO_2\uparrow $
BETA
