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JEE Main levelSingle correct optionDifficulty 2 of 3hx081

Which of the following halides cannot be converted directly into a stable Grignard reagent with in dry ether?

  1. A
  2. B
  3. C
  4. Dbromocyclohexane

Answer: C

A Grignard reagent reacts with any acidic proton. In 2-bromoethanol the carbanion formed would be protonated by the hydroxyl group of another molecule (or the same one), destroying it. The other halides have no active hydrogen.
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