Which alcohol will give immediate turbidity on shaking with $\mathrm{HCl}$ at room temperature?

• A

  3-methyl pentan-2-ol
• B

  2-methyl butan-1-ol
• C

  Butan-3-ol
• Correct answer
  D

  2-methylpropan-2-ol

Solution

Tertiary alcoholo give immediate turbidity on shaking with Lucas reagent (conc $\mathrm{HCl}+$ Anhy $\mathrm{ZnCl}_{2}$ ) at room temperature.

Hence, the correct answer is option: 'D'.