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Wurtz Halide Reaction

How will you ...

Question

How will you obtain ethane and n-butane from alkyl halide in presence of dry ether and sodium?

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Solution

By Wurtz reaction, methyl bromide gives ethane in presence of $N a$ metal in dry ether.
${C H}_{3} - B r + 2 N a + B r {C H}_{3} ⟶ {C H}_{3} {C H}_{3} + 2 N a B r$
Ethane
Similarly $n -$ butane can be obtained when ethyl chloride is treated with sodium metal in presence of dry ether.
${C H}_{3} {C H}_{2} C l + 2 N a + C l {C H}_{2} {C H}_{3} ⟶ {C H}_{3} {C H}_{2} {C H}_{2} {C H}_{3} + 2 N a C l$
$n -$ butane

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