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
Correct Answer: D
Solution :
On hydrolysis, ethylene dichloride gives ethylene glycol. While ethylidine chloride give acetaldehyde. \[\underset{\text{ethylene dichloride}}{\mathop{C{{H}_{2}}Cl.C{{H}_{2}}Cl}}\,\xrightarrow{\text{aq}\text{. }KOH}\underset{\text{glycol}}{\mathop{C{{H}_{2}}OH-C{{H}_{2}}OH}}\,\] \[\underset{\text{ethylidine chloride}}{\mathop{C{{H}_{3}}-CH<\begin{matrix} Cl \\ Cl \\ \end{matrix}}}\,\xrightarrow{\text{aq}\text{. }KOH}C{{H}_{3}}CH<\begin{matrix} OH \\ OH \\ \end{matrix}\xrightarrow{-{{H}_{2}}O}\]\[\underset{\text{acetaldehyde}}{\mathop{C{{H}_{3}}CHO}}\,\]
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