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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

A sodium carbonate solution can turn red litmus blue. What type of salt is it?Why is sodium chloride solution generally considered neutral?A metal oxide reacts with an acid to form salt and water. Which nature does this show?Non-metal oxides can form acidic solutions in water. Which of the following is an example?Which oxide can react with both acids and bases?Why is zinc oxide called amphoteric?When blue copper sulphate is heated, a white solid is formed. This change occurs due to the loss of what?White anhydrous copper sulphate turns blue in the presence of water. In which test is this useful?What is the most correct reason for keeping plaster of Paris away from moisture?Plaster of Paris is formed by controlled heating of gypsum. The main change is related to what?Which statement about a strong acid and a concentrated acid is correct?Between equal concentration solutions of hydrochloric acid and ethanoic acid, which will have higher electrical conductivity?An aqueous sugar solution does not make a bulb glow, while an acidic solution does. What is the correct reason?Why are marble statues damaged by acid rain?When can acid rain water be more harmful to aquatic organisms?Why does the container become hot when acid is dissolved in water?What is the safe method for diluting concentrated acid?Olfactory indicators give signals in acids and bases based on what change?A turmeric stain becomes reddish brown when soap is applied. This indicates which nature of soap?If an aqueous solution of a substance tastes sour and turns blue litmus red, which category does it belong to?