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What is the main focus of Chapter 2 in the Class 10 Science textbook?
What is the main focus of Chapter 2 in the Class 10 Science textbook?
The nature and behaviour of acids, bases, and salts
How can students improve their marks in the Class 10 Science examination?
How can students improve their marks in the Class 10 Science examination?
By getting well-versed with the NCERT Solutions for Class 10 Science provided in Chapter 2
Why is Chapter 2 on Acids, Bases, and Salts considered important in the Class 10 Science curriculum?
Why is Chapter 2 on Acids, Bases, and Salts considered important in the Class 10 Science curriculum?
It involves many practical experiments to help learners understand the basics
How many questions are typically asked from Chapter 2 in the Class 10 examination?
How many questions are typically asked from Chapter 2 in the Class 10 examination?
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What are the chances of scoring full marks on questions from Chapter 2 in the Class 10 examination?
What are the chances of scoring full marks on questions from Chapter 2 in the Class 10 examination?
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What type of reactions are described in Chapter 2 involving acids, bases, and salts?
What type of reactions are described in Chapter 2 involving acids, bases, and salts?
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How can you identify the content in each of the three test tubes containing distilled water, an acidic solution, and a basic solution using red litmus paper?
How can you identify the content in each of the three test tubes containing distilled water, an acidic solution, and a basic solution using red litmus paper?
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Why should curd and sour substances not be kept in brass and copper vessels?
Why should curd and sour substances not be kept in brass and copper vessels?
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What gas is usually liberated when an acid reacts with a metal, and how can you test for its presence?
What gas is usually liberated when an acid reacts with a metal, and how can you test for its presence?
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Write a balanced chemical equation for the reaction between metal compound A and dilute hydrochloric acid if calcium chloride is formed. What gas is evolved in this reaction?
Write a balanced chemical equation for the reaction between metal compound A and dilute hydrochloric acid if calcium chloride is formed. What gas is evolved in this reaction?
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Why do HCl, HNO3, etc., show acidic characters in aqueous solutions while solutions of compounds like alcohol and glucose do not show an acidic character?
Why do HCl, HNO3, etc., show acidic characters in aqueous solutions while solutions of compounds like alcohol and glucose do not show an acidic character?
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Study Notes
Importance of Chapter 2 in Class 10 Science
- Chapter 2 on Acids, Bases, and Salts is a crucial part of the Class 10 Science curriculum, making it essential for students to understand the concepts well to score high marks in the examination.
- The chapter is considered important as it lays the foundation for understanding various chemical reactions and processes that occur in daily life.
Scoring High in Class 10 Science Examination
- To improve their marks in the Class 10 Science examination, students should focus on understanding the concepts of Chapter 2 and practice applying them to different problems and scenarios.
- typically, 5-6 questions are asked from Chapter 2 in the Class 10 examination, making it a significant contributor to the overall score.
- Scoring full marks on questions from Chapter 2 is possible if students have a thorough understanding of the concepts and can apply them accurately.
Types of Reactions in Chapter 2
- Chapter 2 describes various types of reactions involving acids, bases, and salts, including neutralization reactions, displacement reactions, and reaction of acids with metals.
Identifying Acidic, Basic, and Neutral Solutions
- Red litmus paper can be used to identify the content of three test tubes containing distilled water, an acidic solution, and a basic solution.
- Acidic solutions turn red litmus paper red, basic solutions turn it blue, and neutral solutions do not change its color.
Precautions with Curd and Sour Substances
- Curd and sour substances should not be kept in brass and copper vessels as they react with the metals to form toxic compounds.
- This reaction can be harmful and even poisonous if ingested.
Reaction of Acids with Metals
- When an acid reacts with a metal, hydrogen gas is usually liberated.
- The presence of hydrogen gas can be tested using a burning splinter or a lighted candle, which will produce a popping sound when the gas is present.
Balanced Chemical Equation
- The balanced chemical equation for the reaction between metal compound A and dilute hydrochloric acid, resulting in the formation of calcium chloride, can be written as: Metal compound A + HCl → CaCl₂ + H₂
- Hydrogen gas is evolved in this reaction.
Acidic Characters of Compounds
- HCl, HNO₃, etc., show acidic characters in aqueous solutions because they dissociate into H⁺ ions, which are responsible for the acidic properties.
- Solutions of compounds like alcohol and glucose do not show an acidic character because they do not dissociate into H⁺ ions.
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Description
Ace your CBSE Class 10 Science exam with these free PDF NCERT solutions tailored for Chapter 2: Acids, Bases and Salts. Enhance your understanding by practicing answers from the NCERT textbook, boosting your preparation and aiming for top scores.
