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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

Which gas does baking soda give on reacting with an acid?How does baking powder help food rise?What is the main solid product formed on heating baking soda?The chlor-alkali process is done by electrolysis of what?What are the main products obtained in the chlor-alkali process?Which gas is formed at the anode in the chlor-alkali process?Which gas is formed at the cathode in the chlor-alkali process?Why should acids or bases not be identified by taste in a laboratory?Dry hydrogen chloride gas has no effect on dry blue indicator paper. What is the most correct reason?Why will the same gas change colour on moist blue indicator paper?An unknown solution turns blue indicator paper red and gives a gas with magnesium. What is the nature of the solution?The gas evolved in the reaction of zinc with dilute acid gives a pop sound near a burning splint. Which gas is confirmed?Why is hydrogen gas generally not evolved when dilute hydrochloric acid is added to copper?A gas evolved by adding acid to a carbonate turns lime water milky. Which gas is it?Why does the milkiness disappear when excess carbon dioxide is passed through lime water?What products are generally formed when a metal oxide reacts with an acid?Which conclusion is correct for the reaction between a non-metal oxide and a base?Why is aluminium oxide called amphoteric?Zinc oxide reacts with both acids and bases. Which property does this prove?At the same concentration, which will show a stronger acidic effect between hydrochloric acid and acetic acid?