Organic Compounds Containing Halogens Question 159
Question: Ethylene dichloride and ethylidine chloride are isomeric compounds. The false statement about these isomers is that they
[DCE 2003]
Options:
A) React with alcoholic potash and give the same product
B) Are position isomers
C) Contain the same percentage of chlorine
D) Are both hydrolysed to the same product
Show Answer
Answer:
Correct Answer: D
Solution:
On hydrolysis, ethylene dichloride gives ethylene glycol. While ethylidine chloride give acetaldehyde.
$ \underset{\text{ethylene dichloride}}{\mathop{CH_2Cl.CH_2Cl}}\xrightarrow{aq\text{. }KOH}\underset{glycol}{\mathop{CH_2OH-CH_2OH}} $
$ \underset{\text{ethylidine chloride}}{\mathop{CH_3-CH<\begin{matrix} Cl \\ Cl \\ \end{matrix}}}\xrightarrow{aq\text{. }KOH}CH_3CH<\begin{matrix} OH \\ OH \\ \end{matrix}\xrightarrow{-H_2O} $
$ \underset{acetaldehyde}{\mathop{CH_3CHO}} $