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Subjects

Science

Acids, Bases, and Salts

अम्ल, क्षारक और लवण

In Class 10 Science, under the chapter Chemical Substances – Nature and Behaviour, students study acids, bases, and salts through their properties, reactions, and everyday examples. The topic explains how these substances behave with indicators and with one another, including neutralisation, and introduces the formation and practical importance of common salts.

Practice questions

What care should be taken while mixing acid with water?What type of process is mixing acid with water?Which of the following salts is an example of a neutral salt?Hydrochloric acid is what type of acid?A student says that distilled water is a good conductor of electricity because it contains H⁺ and OH⁻ ions. What is the correct correction to this statement?A student dilutes concentrated sulphuric acid by adding water to a beaker containing acid. What correction should be made to prevent an accident?A student says that an antacid relieves indigestion by increasing the amount of acid in the stomach. What is the correct correction to this statement?Bleaching powder is mainly used for what purpose?Which salt is commonly used to remove permanent hardness of water?A student wants to increase the pH of acidic soil. Which of the following substances should be added to the soil?Which gas can be released when baking soda is heated?A student dissolved a white powder in water and added blue litmus to it. The litmus turned red. What type of substance is the powder most likely to be?Which of the following substances forms a neutral aqueous solution?Which of the following solutions will turn red litmus paper blue?Which base can be made industrially from common salt?Which of the following salts forms a basic solution when dissolved in water?A student observes that the pH in their mouth falls below 5.5 after eating sugary food. Which measure is most suitable for protecting tooth enamel from damage?Which substance remains in the solution during the chlor alkali process?When is rain considered acid rain?What can be added to improve acidic soil?