Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryHalogen Derivatives4 Marks
Question
Write a note on Grignard reagent.
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Answer
(1) Ethyl bromide : When ethyl bromide (bromoethane) is heated with alcoholic potassium hydroxide (alcoholic alkali). ethene (gas) is formed by the dehydrobrominaion reaction. (2) n-PropI bromide : When n-propyl bromide is heated with alcoholic potassium hydroxide, propene is formed. (3) Isopropvl bromide : When isopropyl bromide (2-bromopropane) is boiled with alcoholic potassium hydroxide, propcne is formed. (4) Tert-hutyl chloride: When ten-butyl chloride (2-chloro-2-methyl propanc) is hcatcd with alcoholic KOH.
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