Alcohols Phenols And Ethers Question 79
Question: Compound A reacts with $ PCl_5 $ to give B which on treatment with KCN followed by hydrolysis gave propionic acid. What is A and B respectively
[EAMCET 1998]
Options:
A) $ C_3H_8 $ and $ C_3H_7Cl $
B) $ C_2H_6 $ and $ C_2H_5Cl $
C) $ C_2H_5Cl $ and $ C_2H_5Cl $
D) $ C_2H_5OH $ and $ C_2H_5Cl $
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Answer:
Correct Answer: D
Solution:
$ \underset{\text{(A)}}{\mathop{C_2H_5OH}}+PCl_5\to \underset{\text{(B)}}{\mathop{C_2H_5Cl}}+POCl_3+HCl $
$ \underset{\text{(B)}}{\mathop{C_2H_5Cl}}+KCN\to C_2H_5CN+KCl $