Multiple choice The two OH groups are present in which of the following compound? Picric acid Styphinic acid Aspirin Oil of winter green Options 3 and 4 Reveal answer Fill a bubble to check yourself B Correct answer Explanation This option is correct because when the resorcinol are nitrated to give the 2,4,6 trinitroresorcinol, it is called as the styphinic acid that contains two OH group.