, the missing reagent is:

Missing reagent P is:

The reaction involved in the oil of Winter Green test is: salicylic acid underset (Conc. H_(2)SO_(4))overset(X,Delta)(to) Product. The product is treated with Na_(2)CO_(3) solution. The missing reagent X in the above reaction is

The reaction involved in the oil of winter green test is salicylic acid overset(Delta)underset("Conc. "H_(2)SO_(4))rarr "product." The product is treated with Na_(2)CO_(3) solution. The missing reagent in the above reaction is

Reagent X is

find missing reagents.