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How can you obtain iodoethane from ethanol when no other iodine containing reagent except NAI is available in the laboratery? |
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Answer» NaI does not react directly with ethanol. In order to solve the problem, ethanol is first converted into chloroethane by reacting with HCl (g) in the presence of anhy. `ZnCl_(2)` this is then reacted with NaI in the presence of acetone to form iodoethane by halogen exchange reaction. `underset("Ethanol")(C_(2)H_(5)OH)+HCl(g)overset(ZnCl_(2)("anhyd"))toC_(2)H_(5)Clunderset(("Acetone"))overset("NaI")tounderset("Iodoethane")(C_(2)H_(5)I`. |
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