Terpinen-4-ol is an active ingredient in tea tree oil has the following structure The correct observations for terpinen-4-ol is/are I. It rotates the plane of plane polarized light II. It reacts with Baeyers's reagent to form form a triol III. On reaction with NaBr and H ₂ SO ₄ , it gives form a diobromo compound IV. On ozonolysis it gives a compound with molecular formula C ₁₀ H ₁₈ O ₃