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Chemistry · PYQ NEET UG 2023

हिन्दी

Consider the following reaction and identify the product (P). \( \text{3-Methylbutan-2-ol} + \text{HBr} \rightarrow \text{Product (P)} \)

  1. \( \text{2-Bromo-3-methylbutane} \)
  2. \( \text{2-Butene} \)
  3. \( \text{2-Bromo-2-methylbutane} \)
  4. \( \text{1-Bromo-2-methylbutane} \)

Correct answer · Option 3

\( \text{2-Bromo-2-methylbutane} \)

Explanation

Protonation of 3-methylbutan-2-ol followed by carbocation rearrangement (1,2-hydride shift from secondary to tertiary carbocation) yields 2-bromo-2-methylbutane as the major product.
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