Acids, Bases and Salts from NCERT Class X Science covers the properties of acids and bases, indicators, reactions with metals, carbonates and each other, the pH scale and its importance in everyday life, and common salts such as sodium chloride, baking soda, washing soda, bleaching powder and plaster of Paris. It is a high-scoring chapter in the CBSE board exam. These free MCQ practice tests help you revise reactions, pH values and uses of salts. Each test is timed, scored instantly and followed by a full answer review.