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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

Why can sodium hydrogen carbonate be used as an antacid?Which is the correct matching for washing soda and baking soda?Why does soap produce less lather with hard water while washing clothes?White anhydrous copper sulphate turns blue when water is added. What does this show?The main difference between gypsum and plaster of Paris is related to what?Which of the following salts can turn blue litmus red in its aqueous solution?Which salt is most likely to show basic nature in aqueous solution?Which salt is likely to show acidic nature in aqueous solution?Which salt gives a nearly neutral solution because it is formed from a strong acid and a strong base?Why is carbon dioxide considered both a non-metal oxide and an acidic oxide?Why is calcium oxide called a basic oxide?Dry hydrogen chloride gas does not turn blue litmus red, but it does so after dissolving in water. What does this prove?If the concentration of hydrogen ions in an acidic solution increases ten times, what is the general effect on pH?Between two acidic solutions of pH 3 and pH 5, which one is more acidic?Between two basic solutions of pH 10 and pH 13, which one is more basic?Adding lime to acidic soil is based on which principle?Why can adding organic matter gradually improve basic soil?Which substance is likely to taste sour and be acidic in nature?Which substance is likely to feel soapy and be basic in nature?The smell of vanilla decreases in a base when used as an olfactory indicator. This observation is useful for identifying what?