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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

How can acid rain damage marble buildings?Why is rinsing the mouth after meals helpful in protecting tooth enamel?Which condition is more favourable for the beginning of tooth decay?Why does taking an antacid give relief when acidity increases in the stomach?Why is baking soda useful for reducing the effect of acid present in an ant sting?If the pH of soil is very low, what effect can it have on plant growth?Why is soil pH testing useful in agriculture?Which substance can identify a basic solution as a natural indicator?How can hibiscus flower extract help in identifying acids and bases?How can onion juice identify a base as an olfactory indicator?A student tried to identify an unknown solution by touching it in the laboratory. Why is this method wrong?If a solution does not change either red or blue litmus, which test can give more clarity?Why should acid be added slowly to water while mixing acid with water?Why can adding water directly to concentrated acid cause an accident?Which statement shows that heat can be released in a neutralisation reaction?If the pH value decreases from 7 to 3, what change occurs in the nature of the solution?If the pH value increases from 7 to 11, what will be the nature of the solution?In which pair is the first substance acidic and the second substance basic?In which pair can both substances show basic nature?In which pair can both substances show acidic nature?