Questions 18-20 refer to the following passage: A passage describing various methods of preparing herbal remedies, focusing on extraction and therapeutic applications. (18) Which of the following is M

You're on a roll — 18) The correct option is A. While "herbal tea" is a general term for a beverage, a "true infusion" often implies a more concentrated preparation for medicinal purposes, requiring a longer steeping period to extract a higher concentration of active compounds. 19) The correct option is A. Alkaloids are basic compounds. Vinegar (acetic acid) is acidic and reacts with alkaloids to form water-soluble salts, making it an effective solvent for their extraction. 20) The correct option is C. In traditional medicine, steaming (often involving the inhalation of herbal steam) is primarily used to relieve respiratory issues such as congestion, coughs, and associated headaches by moistening airways and loosening mucus. Two more to go! Send the next one 📸