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CBSE Class 10 Chemistry Weightage 2025

by PW Gulf
January 30, 2025
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CBSE Class 10 Chemistry Weightage 2025: Understanding the chapter-wise marks distribution helps students create a well-structured study plan, which is essential for excelling in CBSE Class 10 Chemistry. The Chemistry section includes four chapters in class 10, contributing approximately 25 marks to the overall Science exam. Therefore, to score good marks in the class 10 Science exam, students must focus on strengthening their Chemistry preparation.

Besides knowing the CBSE class 10 Chemistry weightage 2025, students should also understand the key topics in each chapter. This approach is crucial to prioritise high-weightage topics that are frequently asked in the board exam.

CBSE Class 10 Chemistry Weightage 2025 

Class 10 Science Unit 1 includes all the chapters of the Chemistry section, such as Chemical Reactions, Acid Bases and Salts, Metal and Non-Metals, and Carbon and its Compounds. Mastering these topics is essential to excel in both practical and theoretical exams. 

Provided below is the CBSE class 10 Chemistry weightage 2025, along with important topics:

CBSE Class 10 Chemistry Weightage 2025

Chapter

Important Chapters

Marks Allocation

Chemical Reactions and Equations

  • Types of Chemical Reactions

  • Balancing Chemical Equations

  • Decomposition Reactions

  • Endothermic & Exothermic Reactions

  • Oxidation & Reduction

8 Marks

Acids, Bases, and Salts

  • Importance of pH in Everyday Life

  • Difference Between Acids and Bases

  • Properties of Bases

  • Difference Between Baking Soda and Baking Powder

  • Dipole Moment

5 Marks

Metals and Non-Metals

  • Properties of Metals and Non-Metals

  • Reactivity Series

  • Metallurgy

  • Corrosion and Its Prevention

7 Marks

Carbon and its Compounds

  • Nomenclature of Carbon Compounds

  • Chemical Properties of Carbon Compounds

  • Ethanol & Ethanoic Acid

  • Homologous Series

5 Marks

Total Weightage

 

25 Marks

CBSE Class 10 Science Exam Pattern 2025

The CBSE class 10 Science exam consists of five sections. The Chemistry questions are distributed across all the sections of the question paper. Understanding the CBSE Class 10 Science exam pattern 2025 is essential for effective exam preparation. Below is a detailed breakdown of class 10 Science marks distribution and number of questions:

CBSE Class 10 Science Exam Pattern 2025

Section

No. of Questions

Marks per Question

Total Marks

MCQs

16

1

16

Very Short Answer Type Questions

6

2

12

Short Answer Type Questions

7

3

21

Long Answer Type Questions

3

4

12

Competency Based Questions

3

5

15

Total

35 Questions

-

80 Marks

Internal Assessment

-

-

20 Marks

CBSE Class 10 Chemistry Weightage 2025 FAQs

Q1. What is the weightage for CBSE Class 10 2025 Chemistry?

Ans. CBSE class 10 Chemistry carries 25 marks in the theory exam, which accounts for 31.25% weightage.

Q2. Which chapter has more weightage in Chemistry Class 10?

Ans. “Chemical Reactions and Equations” has the highest weightage in the CBSE class 10 Chemistry section.

Q3. Which is the easiest chapter in Class 10 Chemistry?

Ans. Acid Bases and Salts is regarded as the easiest chapter in class 10 Chemistry. However, students must focus on understanding all the topics to strengthen their preparation.

Q4. Which is the hardest chapter in Class 10 Chemistry?

Ans. Most students consider “Chemical Reactions and Equations” as the most challenging chapter in class 10 Chemistry.

Q5. How many MCQs are in CBSE Class 10 Science 2025?

Ans. The class 10 Science 2025 exam includes nearly 16 MCQs.

 

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