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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 colour does blue litmus turn in an acidic solution?What colour does red litmus turn in a basic solution?Substances with a sour taste are generally of which nature?A soapy slippery touch is a common property of which type of substance?Which acid is found in lemon juice?Which acid is found in vinegar?The sourness in curd is due to which acid?Which acid is present in an ant sting?Which acid is found in tomato?Which gas is generally released when an acid reacts with an active metal?Which of the following substances turns blue litmus paper red in an acidic solution?Which of the following substances produces hydrogen ions (H⁺) when dissolved in water?In which of the following aqueous solutions does red litmus paper turn blue?Which gas is formed when an acid reacts with a metal hydrogen carbonate?Which statement is correct about dry hydrogen chloride gas?Which of the following substances is a basic oxide?A student says that dry hydrogen chloride gas will turn blue litmus paper red. What is the error in this statement?What is the nature of a solution when its pH is less than seven?What is the nature of a solution when its pH is greater than seven?What is the nature of a solution with pH seven?