Organic Compounds Containing Halogens Question 140
Question: In which one of the following conversions phosphorus pentachloride is used as a reagent
[EAMCET 1997]
Options:
A) $ H_2C=CH_2\to CH_3CH_2Cl $
B) $ H_3C-O-CH_3\to CH_3Cl $
C) $ CH_3CH_2OH\to CH_3CH_2Cl $
D) $ HC\equiv CH\to CH_2=CHCl $
Show Answer
Answer:
Correct Answer: B
Solution:
$ CH_3-O-CH_3+PCl_5\to 2CH_3Cl+POCl_3 $
$ CH_3CH_2OH+PCl_5\to CH_3CH_2Cl+HCl+POCl_3 $
So, both reaction carried out by $ PCl_5 $