MCQ
$HBr$ reacts fastest with
  • $2-$ methyl butane $-2-$ ol
  • B
    $3-$ methyl butane $-2-$ ol
  • C
    Butane $-1-$ ol
  • D
    $2-$ methyl butane $-1-$ ol

Answer

Correct option: A.
$2-$ methyl butane $-2-$ ol
a
Reactivity of alcohol with $HBr$ is $3^{\circ}\,>\,2^{\circ}\,>\,1^{\circ}$;

Option (A) is $3^{\circ}$ alcohol

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