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What is Grignard reagent? How is it prepared from ethyl bromide?

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What is Grignard reagent? How is it prepared from ethyl bromide?

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When a solution of haloalkane in either is treated with magnesium, we will get alkyl magnesium halide known as Grignard reagent, ethyl magnesium bromide is prepared from ethyl bromide as:

CH3 - CH2Br + Mg(Ethyl bromide) \(\overset{dry\,ether}{\longrightarrow}\) CH3CH2MgBr (Ethyl  magnesium bromide (or) Grignard reagent)

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