Alcohols Phenols And Ethers Question 18
Question: Ethylene glycol reacts with excess of $ PCl_5 $ to give
[Kerala PMT 2004]
Options:
A) 1, 1-dichloroethane
B) 1, 2-dicholoroethane
C) 1, 1, 1-trichloroethane
D) 1, 1, 2, 2-tetrachloroethane
E) 2, 2-dichloroethane
Show Answer
Answer:
Correct Answer: B
Solution:
$ \underset{\text{Ethylene glycol}}{\mathop{\underset{CH_2OH}{\mathop{\underset{|}{\mathop{C}}H_2OH}}}}+2PCl_5\to \underset{\text{1, 2 dichloroethane}}{\mathop{\underset{CH_2Cl}{\mathop{\underset{|}{\mathop{C}}H_2Cl}}+2POCl_3+2HCl}} $