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Question

Chemistry Question on Haloalkanes and Haloarenes

An alkyl halide reacts with metallic sodium in dry ether. The reaction is known as :

A

Frankland?? reaction

B

Sandmeyer?? reaction

C

Wurtz reaction

D

Kolbe?? reaction

Answer

Wurtz reaction

Explanation

Solution

Wurtz reaction : It involves the interaction of two molecules of an alkyl halide (preferably bromide or iodide) with metalic sodium in presence of dry ether to form symmetrical alkanes containing double the number of carbon atoms present in the alkyl halide. For example, {\underset{\text{Alkyl halide}}{ {R-X}}+2Na+XR>[Dryether]+ 2Na +X - R ->[ {Dry ether}]\underset{\text{Alkane}}{ {R-R}} + 2NaX}