Revision Notes for Class 10 Chemistry: Acids, Bases and Salts
Access comprehensive revision notes for Acids, Bases and Salts using the CBSE Class 10 Chemistry Acids, Bases and Salts Notes Set 20. Designed to align with the 2026-27 academic syllabus for Class 10 Chemistry, these concept summaries help students streamline their exam preparation and review complex topics efficiently.
Review Acids, Bases and Salts for Class 10 Chemistry
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Salts
A salt forms when an acid reacts with a base. Salts of strong acid and strong base are neutral (pH 7), those of strong acid and weak base are acidic (pH below 7), and those of weak acid and strong base are basic (pH above 7). Salts with the same positive or negative ion form a family, for example NaCl and \( \ce{Na2SO4} \).
Common Salts
| Compound | Preparation | Uses |
|---|---|---|
| Common salt, NaCl | From sea water and rock salt | Food, and raw material for NaOH, \( \ce{Cl2} \), \( \ce{H2} \), baking soda and washing soda |
| Sodium hydroxide | Chlor-alkali process: \( \ce{2NaCl + 2H2O -> 2NaOH + Cl2 + H2} \) | Soap, paper, artificial fibres |
| Bleaching powder, \( \ce{CaOCl2} \) | Chlorine passed over dry slaked lime | Bleaching cotton and paper, disinfecting drinking water |
| Baking soda, \( \ce{NaHCO3} \) | From NaCl, water, \( \ce{CO2} \) and ammonia | Antacid, baking powder, soda-acid fire extinguisher. On heating: \( \ce{2NaHCO3 -> Na2CO3 + H2O + CO2} \) |
| Washing soda, \( \ce{Na2CO3.10H2O} \) | Recrystallisation of sodium carbonate | Glass, soap, paper, softening hard water |
| Plaster of Paris, \( \ce{CaSO4} \) \( \cdot \frac{1}{2} \) \( \ce{H2O} \) | Heating gypsum \( \ce{CaSO4.2H2O} \) to 373 K | Plaster for fractured bones, statues, smoothing surfaces. It sets by taking up water to form gypsum. |
Water of Crystallisation
Some salts contain a fixed number of water molecules in their crystals. This is water of crystallisation. Blue copper sulphate crystals \( \ce{CuSO4.5H2O} \) turn white on heating because the water is lost, and turn blue again on adding water. Gypsum has 2 water molecules per formula unit and plaster of Paris has half a molecule.
Remember
1. Bleaching powder smells of chlorine because it slowly releases chlorine in air.
2. Soda-acid fire extinguisher releases carbon dioxide, which cuts off the supply of air.
3. Dead burnt plaster is formed by overheating gypsum and does not set.
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Access structured revision notes for Acids, Bases and Salts designed in alignment with the latest CBSE curriculum for Class 10 Chemistry. These summaries help clarify core themes and support effective daily study.
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FAQs
You can download the teacher prepared revision notes for CBSE Class 10 Chemistry Acids, Bases and Salts Notes Set 20 from StudiesToday.com. These notes are designed as per 2026-27 academic session to help Class 10 students get the best study material for Chemistry.
Yes, our CBSE Class 10 Chemistry Acids, Bases and Salts Notes Set 20 include 50% competency-based questions with focus on core logic, keyword definitions, and the practical application of Chemistry principles which is important for getting more marks in 2026 CBSE exams.
Yes, our CBSE Class 10 Chemistry Acids, Bases and Salts Notes Set 20 provide a detailed, topic wise breakdown of the chapter. Fundamental definitions, complex numerical formulas and all topics of CBSE syllabus in Class 10 is covered.
These notes for Chemistry are organized into bullet points and easy-to-read charts. By using CBSE Class 10 Chemistry Acids, Bases and Salts Notes Set 20, Class 10 students fast revise formulas, key definitions before the exams.
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