The reaction involved in the oil of winter green test is salicylic acid $\mathrm{} \underset{\text { Conc. } \mathrm{H}_{2} \mathrm{SO}_{4}}{\stackrel{\Delta}{\longrightarrow}}$ product. The product is treated with $\mathrm{Na}_{2} \mathrm{CO}_{3}$ solution. The missing reagent in the above reaction is

• A

  phenol
• B

  $\mathrm{NaOH}$
• C

  ethanol
• Correct answer
  D

  methanol

Solution

Methanol reacts with salicylic acid in the presence of a few drops of conc $\mathrm{H}_{2} \mathrm{SO}_{4}$ to give methyl salicylate having the smell of oil of winter green.

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