02. Acids, Bases, and Salts


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Description:

This PDF contains 37 important questions from Chapter 2 – Acids, Bases, and Salts of Class 10 Science. Aligned with the CBSE 2024–25 syllabus, this resource helps students focus only on the most tested and concept-rich questions.
Whether it’s indicators, pH values, or real-life salt applications – this PDF prepares you for all possible board-level questions in just 3 hours of revision time.

 

Why Choose This Book? 

✅ Includes questions strictly from CBSE board exam trends

✅ Covers all levels: 1-mark to 5-mark questions

✅ Questions based on NCERT + previous year papers

✅ Each question is paired with detailed, step-by-step answers

✅ Perfect for last-minute revision and concept brushing

 

 

What You Will Learn?

✅ Acid-base indicators are dyes or mixtures of dyes which are used to indicate the presence of acids and bases.

✅ Acidic nature of a substance is due to the formation of H+ (aq) ions in solution. Formation of OH– (aq) ions in solution is responsible for the basic nature of a substance. ✅ When an acid reacts with a metal, hydrogen gas is evolved and a corresponding salt is formed. 

✅ When a base reacts with a metal, along with the evolution of hydrogen gas a salt is formed which has a negative ion composed of the metal and oxygen. 

✅ When an acid reacts with a metal carbonate or metal hydrogencarbonate, it gives the corresponding salt, carbon dioxide gas and water. 

✅ Acidic and basic solutions in water conduct electricity because they produce hydrogen and hydroxide ions respectively.

✅ The strength of an acid or an alkali can be tested by using a scale called the pH scale (0-14) which gives the measure of hydrogen ion concentration in a solution.

✅ A neutral solution has a pH of exactly 7, while an acidic solution has a pH less than 7 and a basic solution a pH more than 7.

✅ Living beings carry out their metabolic activities within an optimal pH range. 

✅ Mixing concentrated acids or bases with water is a highly exothermic process. 

✅ Acids and bases neutralise each other to form corresponding salts and water.

✅  Water of crystallisation is the fixed number of water molecules present in one formula unit of a salt.

✅ Salts have various uses in everyday life and in industries.


What’s Inside the Book?

Total Questions: 37

Suggested Study Time: 3 hours

Types of Questions:

✅ 1-mark objective and short answers

✅ 2–3 mark concept-based application questions

✅ 5-mark HOTS and chemical equation-based problems

✅ Format: Instant digital PDF download

✅ Aligned with: CBSE 2024–25 NCERT syllabus

 

Chapter Coverage 

1. This PDF thoroughly covers the following topics from Chapter 2 – Acids, Bases, and Salts:

2. Natural and Artificial Indicators (e.g., onion, turmeric)

3. Chemical Properties of Acids and Bases

4. Neutralization Reactions

5. Reactions with Metals, Carbonates & Bicarbonates

6. pH Scale and its Applications

7. Properties of Salts: Baking Soda, Washing Soda, etc.

8. Strong and Weak Electrolytes

9. Daily life applications (antacids, toothpaste, curd)

10. HOTS-based reasoning questions (e.g., why add acid to water?)

 

Who Can Benefit from This Book? 

✅ Class 10 students preparing for board exams

✅ Students facing difficulties in understanding acid-base reactions

✅ Parents who want a trusted revision tool for their child

✅ Teachers looking for exam-ready practice material

✅ Learners who prefer focused, concept-based study resources

 

How to Use This Book Effectively?

✅ Begin with 1-mark and 2-mark questions to warm up your concepts.

✅ Gradually move to 3 and 5-mark questions for application and reasoning.

✅ Use the answers to understand proper structuring and terminology.

✅ Try writing the answers on your own, then compare with the PDF.

✅ Use the file as a mock test or daily practice tool before exams.

✅ Revisit tough questions weekly till you feel confident.

Frequently Asked Questions (FAQs)

Yes. This PDF is based on the updated CBSE 2024–25 syllabus and NCERT guidelines.

Many questions are either directly from previous years' papers or created using the same exam pattern.

Yes, every question comes with a complete, step-by-step answer written in board-exam format.

Absolutely. The PDF is print-friendly and also viewable on any device.

This PDF includes the most important and repeated questions. It's ideal for revision, practice, and concept clarity.



 

 

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