Question

Which of the following compounds reacts immediately with Lucas reagent?

Options

• CH₃CH₂OH

• CH₃CH₂CH₂OH

• \[\begin{array}{cc}
  \ce{CH3 - CH - CH3}\\
  |\phantom{..}\\
  \ce{OH}
  \end{array}\]

• \[\begin{array}{cc}
  \phantom{...}\ce{CH3}\\
  |\\
  \ce{CH3 - C - CH3}\\
  |\\
  \phantom{..}\ce{OH}
  \end{array}\]

Answer 1

\[\begin{array}{cc}
\phantom{...}\ce{CH3}\\
|\\
\ce{CH3 - C - CH3}\\
|\\
\phantom{..}\ce{OH}
\end{array}\]

Explanation:

3° alcohol reacts immediately with lucas reagent (HCl + anhydrous ZnCl₂) to form two distinct layers.