Question

Why grignard reagent is prepared in anhydrous condition?

Answer 1

as if there would be presence of water in the solution then alkyl halide will not react with magnesium and it will react will water to form alkane ..hence grignard's reagent is formed in anhydrous condition or in the presence of dry ether..

Answer 2

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Grignard reagent should be prepared under anhydrous conditions, because it is very reactive. It reacts very quickly with any source of proton to give hydrocarbon. It reacts with water very quickly. Therefore, it is necessary to avoid moisture from the Grignard reagents.