Important Questions for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry - PDF Download

eSaral Academic and Editorial Team
Class 11 is a very important year for the high school students as it is the year in which you will cover all the important topics and concepts that you will cover in your Class 12 board exam.
Class 11 chemistry chapter 1 Some basic concepts of chemistry will help you to understand the importance of chemistry in various aspects of life.
It's very important for students to stay up to date with all the important questions about class 11 Chemistry so that they can prepare for their final exams better. If a student finds it difficult to understand the topics and concepts related to this chapter, they should practice all the essential questions for class 11 Chemistry chapter 1. Practicing these important questions will help the students to understand the concepts in this chapter.
A recurring 'important question' pattern on this chapter is a unit-conversion trap — see the correct unit spelled out here: molarity unit.
Important Topics & Sub-topics of Some Basic Concepts of Chemistry Class 11 Chemistry
Topic | Sub-Topic |
Nature of Matter | States of matter, Classification of Matter etc. |
Properties of matter and their measurement | Physical and chemical properties, measurement of physical properties, international system of unit (SI) etc. |
Laws of chemical combinations | Law of conservation of mass, Law of definite proportions, Gay Lussac’s law of gaseous volumes, Avogadro’s law etc. |
Dalton’s atomic theory | Postulates of Dalton’s atomic theory |
Atomic and molecular masses | Atomic Mass, Average atomic mass, Molecular mass, formula mass etc. |
Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry Weightage
In class 11 CBSE exam, every subject exam paper consist of 70 marks. Class 11 chemistry CBSE exam paper also consist of 70 marks. Every single chapter of chemistry have different weightage in the CBSE chemistry exam. Class 11 chemistry chapter 1 – some important concepts of chemistry have 7 marks weightage in the class 11 chemistry CBSE exam paper. The weightage percentage of chemistry chapter 1 – some important concepts of chemistry in the CBSE chemistry exam is 10%. Hence, chemistry chapter 1 – some important concepts of chemistry is consider as important and scoring chapter in the class 11 chemistry CBSE exam.
Tips to Solve Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry
Time management strategies to solve Class 11 chemistry chapter 1 important questions
Time management is one of the most important factor you can do to prepare for class 11 exam and solve important questions such as those in Chapter 1 of Class 11 Chemistry. Here are some strategies to help you manage your time effectively:
- Prioritize your tasks: Identify the most important and difficult questions in the chapter. These questions are usually the ones that cover basic concepts.
- 2. Set clear goals: Set a goal for what you want to achieve with the time you have available. For instance, you could set a goal to answer a number of questions or to complete a particular section of the chapter.
Special Focus on Challenging Topics
Focusing on challenging topics in Chemistry Chapter 1 is an effective way to improve your understanding and problem-solving skills.
Self Test Checklist
A self-test checklist is a useful way to ensure that you have adequately prepared for class 11 exam or increase your knowledge of chapter 1.
Benefits of Solving Class 11 Chemistry Chapter 1 Important Questions with Answers
Solving Class 11 Chemistry Chapter 1 Some basic concepts of chemistry important questions with answers provides several benefits to students, including:
- Assessment of knowledge
- Preparation for Exams
- Improves problem solving skills
- Boost confidence
- Time management skills
Frequently Asked Questions
Question 1: What are the topics of chapter 1 Some basic concepts of chemistry introduced in Class 11 Chemistry?
Answer 1: Following topics have been introduced in class 11 chemistry chapter 1 Some basic concepts of chemistry:
- Importance of chemistry
- Nature of matter
- Properties of matter and their measurement
- Uncertainty in measurement
- Laws of chemical combinations
- Atomic and molecular masses
- Dalton’s atomic theory
- Mole concept and molar masses’
- Percentage composition
- Stoichiometry and stoichiometric calculations
Question 2: How to score good marks in Class 11 Chemistry Chapter 1 Some basic concepts of chemistry?
Answer 2: Scoring well in Class 11 Chemistry Chapter 1, "Some Basic Concepts of Chemistry," requires a strategic and focused approach to studying. Here are some tips to help you score good marks in this chapter:
Understand the Basics: Start by thoroughly understanding the fundamental concepts covered in the chapter, such as the mole concept, the atomic and molecular masses, and the Avogadro's number. These are the building blocks for the entire subject.
Create a Study Plan: Develop a study plan or schedule that allocates dedicated time for this chapter. Consistency is key, so make sure you stick to your plan.

Team eSaral
eSaral Academic and Editorial Team
Team eSaral is the collective author profile for educational content created by eSaral’s teachers and academic contributors. The team draws on expertise from IIT graduates, doctors, experienced educators and subject specialists to develop resources for JEE, NEET and school students. Our articles aim to explain concepts clearly and help students study with confidence.
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