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  4. A mixture of ethyl iodide and n-propyl iodide is treated with sodium metal in presence of ethoxyethane. The hydrocarbon which is not formed is

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Q. A mixture of ethyl iodide and n-propyl iodide is treated with sodium metal in presence of ethoxyethane. The hydrocarbon which is not formed is

NTA AbhyasNTA Abhyas 2020Hydrocarbons

Solution:

Here butane, pentane and hexane are formed but not propane. $2 CH _{3} CH _{2} I +2 Na \stackrel{\left( C _{2} H _{5}\right)_{2} O }{\longrightarrow } CH _{3} CH _{2} CH _{2} CH _{3}+2 NaI$
$2 CH _{3} CH _{2} CH _{2} I +2 Na \stackrel{\left( C _{2} H _{5}\right)_{2} O }{\longrightarrow } CH _{3} CH _{2} CH _{2} CH _{2} CH _{2} CH _{3}+2 NaI$
$CH _{3} CH _{2} I +2 Na + ICH _{2} CH _{2} CH _{3} \rightarrow CH _{3} CH _{2} CH _{2} CH _{2} CH _{3}+2 NaI$