Important Questions for Class 10 Science Chapter 2 Acids, Bases and Salts - PDF DownloadJEE Mains & Advanced
Class 10 Board exams are a crucial period of student life for scoring good marks. Thus students need to know equations, reactions, and formulas and be able to solve the same. Important Questions for Class 10 Science Chapter 2 will assist students in mastering chemistry concepts. They will gain enough knowledge in the theory of the second chapter in Science through these problems.
If you plan to prepare for the JEE and NEET examination, it is crucial to establish a good command in chemistry from the 10th standard. These questions will help you have a good base for chemistry preparation for 10th class and competitive exams. In Chapter 2 of Class 10, students will be familiar with the behavior of acids, bases, and salts. Also, they will learn how reactions of these three occur with metals and non-metals. The concept of acids mixing up with bases to form salts turns out to be very interesting as it has an excellent practical approach. Thus, it becomes easy for students to learn various reactions to this subject. eSaral is a platform that provides free CBSE Solutions and other study materials for students. Maths Students who are looking for the better solutions, they can download Class 10 Maths NCERT Solutions to help you to revise the complete syllabus and score more marks in your examinations.
Important Topics & Sub-topics of Acids, Bases and Salts Class 10 Science
Introduction to Acids, Bases, and Salts:
Definitions: Understand the definitions of acids and bases based on their properties, including the presence of hydrogen ions in acids and hydroxide ions in bases.
Indicators: Explore the use of indicators like litmus, phenolphthalein, and methyl orange to identify acids and bases.
Properties: Examine the general properties of acids (sour taste, ability to turn blue litmus paper red) and bases (bitter taste, slippery feel, ability to turn red litmus paper blue).
pH Definition: Learn what pH represents and its significance as a measure of acidity or basicity.
pH Range: Understand the pH scale, which ranges from 0 to 14, with 7 being neutral, values less than 7 indicating acidity, and values greater than 7 indicating basicity.
Chemical Properties of Acids:
Reaction with Metals: Explore how acids react with metals to produce salts and hydrogen gas.
Reaction with Non-metals: Understand the reactions between acids and non-metals, leading to the formation of salts.
Chemical Properties of Bases:
Reaction with Metals: Study the reactions of bases with metals, resulting in the formation of salts and hydrogen gas.
Reaction with Non-metals: Understand the reactions between bases and non-metals, leading to the formation of salts.
Types of Acids and Bases:
Strength: Differentiate between strong and weak acids/bases based on their ionization properties.
Concentration: Understand the concepts of concentrated and dilute solutions of acids and bases.
Uses of Acids, Bases, and Salts:
Acids: Explore common uses of acids in daily life, such as citric acid in fruits and sulfuric acid in industries.
Bases: Examine the uses of bases like sodium hydroxide and ammonia in various applications.
Definition: Understand neutralization as the reaction between acids and bases to form salts and water.
Balanced Equations: Learn to write balanced chemical equations for neutralization reactions.
Salt and its Types:
Definition: Understand what salts are in the context of chemistry.
Types: Differentiate between normal salts, acid salts, and basic salts.
Preparation and Properties of Sodium Hydroxide and Bleaching Powder:
Sodium Hydroxide: Learn methods of preparing sodium hydroxide, its properties, and common uses.
Bleaching Powder: Understand the preparation, properties, and uses of bleaching powder.
Importance of pH in Everyday Life:
Digestive System: Explore the role of pH in the human digestive system.
Soil pH: Understand how pH affects plant growth and soil fertility.
Chemical Tests for Acids and Bases:
Litmus Paper: Understand how to use litmus paper to test for acidity or basicity.
Phenolphthalein: Explore the use of phenolphthalein in identifying the nature of substances.
Handling Acids and Bases Safely: Learn safety precautions when working with acids and bases, emphasizing proper handling and dilution.
Class 10 Science Chapter 2 Acids, Bases and Salts Weightage
The weightage of Class 10 Science Chapter 2, "Acids, Bases and Salts," typically ranges from 4 to 6 marks in various examination boards. This chapter is important as it introduces fundamental concepts related to acids, bases, and salts, along with practical applications. Ensure a thorough understanding of the topic for a well-rounded preparation.
The Acid, base and salt class 10 is one of the most important chapters as it provides you maximum chances to score good marks in your exams. The unit consisting of the chapter comes for a weightage of 33 marks and the chapter itself for 5 marks in the examination. Through the Class 10 Science Chapter 2 solutions, you will be able to solve questions based on this chapter easily and strengthen the basic concepts of the subject chemistry.
Following are the main headings that are covered under Chp 2 Science Class 10 acids bases and salts:
Understanding the properties of bases and acids.
How do acids and bases respond with metals?
How metal carbonates and metal hydrogen carbonates respond with acids?
How do acids and bases respond with one another?
The response of metallic oxides with acids.
The response of non – metallic oxide with base.
What do all acids and bases share for all intents and purposes?
Significance of pH in regular day to day existence.
More about Salts.
Group of salts.
pH of salts.
Synthetic substances from regular salt.
Tips to Solve Class 10 Science Chapter 2 Acids, Bases and Salts
Understand Basic Concepts: Ensure a clear understanding of key concepts like acids, bases, and salts. Know their properties, characteristics, and chemical formulas.
Memorize Common Acids and Bases: Memorize names and formulas of common acids (e.g., HCl, H2SO4) and bases (e.g., NaOH, KOH). This will help in identifying them in reactions.
Chemical Reactions: Practice balancing chemical equations involving acids, bases, and salts. Understand the neutralization process and the formation of salts.
pH Scale: Familiarize yourself with the pH scale. Know the pH range for acids, bases, and neutral substances. Understand how to calculate pH and pOH.
Indicators: Learn about indicators like litmus, phenolphthalein, and methyl orange. Understand how they change color in acidic or basic solutions.
Common Salt Preparation: Understand methods for preparing common salt (NaCl) and the chemical reactions involved.
Metal Carbonates and Metal Hydrogen Carbonates: Study reactions involving metal carbonates and metal hydrogen carbonates with acids to understand the release of carbon dioxide.
Salts and Their Colors: Know the colors of salts in both hydrated and anhydrous forms. Understand factors influencing the color of salts.
Acids and Bases in Everyday Life: Relate the concepts to everyday examples. Understand the role of acids and bases in various applications like cleaning, cooking, and agriculture.
Practice Numericals: Solve numerical problems related to the concentration of ions, pH calculations, and stoichiometry in acid-base reactions. Practice helps reinforce theoretical concepts.
Remember, consistent practice and understanding the underlying principles will enhance your ability to solve problems related to Acids, Bases, and Salts in Class 10 Science.
Benefits of Solving Class 10 Science Chapter 2 Important Questions with Answers
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Frequently Asked Questions
Question 1: Is Chapter 2 “Acids, Bases and Salts” of Class 10 Science important?
Answer: Chapter 2 “Acids, Bases and Salts” of Class 10 Science is an important chapter from the CBSE Board examination viewpoint. Many important questions are asked from this chapter in board exams. Hence you must pay close attention to the concepts given in this chapter and also practice them thoroughly.
Question 2:Which important questions can be asked in board examinations from “Acids, Bases, and Salts”?
Answer: As we have mentioned, Chapter 2" Acids, Bases, and Salts" is a very important chapter. Quite a few important questions can be asked from this chapter like:
What is the chemical formula of baking soda? (One Mark)
How will you show that amino acid is a monobasic acid? (Two Marks)
What is a neutralization reaction? Give two examples. (Three Marks)