Solved Texbook Questions Question (1): Define the terms: Acid, alkali and salt.  Answer:  Acid: An acid is a compound, which releases hydronium ions (H3O+) as the only positive ions in solution. Alkali: An alkali is a compound, which releases hydroxyl ions (OH–) as the only negative ions in solution. Salt: A salt gives positive ions other … Continue reading CLASS 10 CHEMISTRY: Chapter 2 Acids, Bases and Salts_Solved Textbook Questions