Q18) (a) Explain Dehydrohalogenation reaction of an alkyl halide (2)
(b) What is Grignard Reagent? (1)
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Explanation:
Explanation : When an alkyl halide is heated with alcoholic. solution of KOH an alkene is formed due to removal of H and halogen. X atoms from the adjacent carbon atoms (α-β positions ) and this. elimination reaction is called dehydrohalogenation reaction.
b- Grignard reagents are formed by the reaction of magnesium metal with alkyl or alkenyl halides. They're extremely good nucleophiles, reacting with electrophiles such as carbonyl compounds (aldehydes, ketones, esters, carbon dioxide, etc) and epoxides.
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