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JEE Main levelSingle correct optionDifficulty 2 of 3o2189

3,3-Dimethylbut-1-ene is hydrated with dilute . The major product is

  1. A2,3-dimethylbutan-1-ol
  2. B3,3-dimethylbutan-2-ol
  3. C3,3-dimethylbutan-1-ol
  4. D2,3-dimethylbutan-2-ol

Answer: D

The secondary cation undergoes a 1,2-methyl shift to give the tertiary cation . Water adds to it to give 2,3-dimethylbutan-2-ol.
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