Chemistry Class 12 Marks Distribution with Weightage 2024

Chemistry Class 12 Marks Distribution with Weightage 2024

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Anum
Anum Ansari
Assistant Manager – Content
Updated on Feb 29, 2024 10:58 IST

Students can also refer to the article below to get an idea about the chemistry Class 12 marks distribution of CBSE, ISC, Bihar board and Maharashtra HSC board.

Chemistry is one of the important subjects for Class 12 students who have opted for the science stream. Though the subject is considered a difficult one, students can score high in it with a thorough understanding of the chapters and concepts.  

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A candidate has to score minimum 33 per cent aggregate marks to pass CBSE Class 12 board exams 2024. Also, the candidate must secure at least 33 per cent marks in each subject to pass the board exam. Candidates who secure 33 per cent or above aggregate marks but scored less than 33 per cent in any subject have to appear for the Class 12 supplementary exam. We have provided CBSE, ISC Class 12 chapter-wise weightage of chemistry subject on this page. The Central Board of Secondary Education (CBSE) has released sample papers for Class 12 board exams 2024. Sample Question Papers with detailed designs of the CBSE Class 12th Question Paper can be checked on CBSE official website. 

Also read: 

CBSE Class 12 Chemistry Weightage 2024

Candidates can perform well in the CBSE Class 12 Chemistry exam 2024 by focusing on important topics. Below is the unit-wise distribution of marks for the CBSE Class 12 Chemistry exam.  

Unit 

Marks 

Solutions 

Electrochemistry 

Chemical Kinetics 

d -and f -Block Elements 

Coordination Compounds 

Haloalkanes and Haloarenes 

Alcohols, Phenols and Ethers 

Aldehydes, Ketones and Carboxylic Acids 

Amines 

Biomolecules 

Total 

70 

ISC Class 12 Chemistry Weightage 2024

The weightage of each chapter helps the students score good in Chemistry Class 12 ISC Board exam. Below is the unit-wise distribution of marks for the ISC Class 12 Chemistry exam.  

Q:   When will CBSE 12th Commerce exams 2025 be conducted?

A:

CBSE will conduct CBSE 12th exams 2025 between February 15 and April 4, 2025. The CBSE commerce exams 2025 will be held between February 22 and March 29, 2025. You can check the date sheet below:

Date

Subject

22-Feb-2025

Business studies, business administration

8-Mar-2025

Mathematics, applied mathematics

11-Mar-2025

English elective, English core

19-Mar-2025

Economics

26-Mar-2025

Accountancy

29-Mar-2025

Informatics Practices, computer science

Students can click on CBSE 12th date sheet 2025 to check and download the detailed CBSE Class 12 date sheet. 

Q:   Is CBSE Class 12th Board exam 2025 checking strict?

A:

For Class 12th, it is considered to be strict. However, it is said that the checking done by evaluators is linient in comparison to the checking done by them in Class 9, 11 in their schools.

So, if u have covered the entire CBSE 12th syllabus and your preparation is on point, then you must not worry about the strict checking. Also, you can click on the link below to check the CBSE 12th important preparation points. 

Top tips to score high in CBSE board exams

Top mistakes students make while preparing for CBSE 12th board exams

Q:   What are the timings for Maharashtra HSC exams 2025?

A:

Maharashtra HSC exams 2024 are held in two shifts. The Morning Shift is from 11 am to 2.10 pm while the Evening Shift is from 3 pm to 6 .10 pm.

Students can click on Maharashtra HSC time table 2024 to check the detailed exam schedule.

Unit 

Marks Distribution 

Solutions 

Physical Chemistry 
25 Marks 

Electrochemistry 

Chemical Kinetics 

d-and-f-Block Elements 

Inorganic Chemistry 
14 Marks 

Coordination Compounds 

Haloalkanes and Haloarenes 

Organic Chemistry 
31 Marks 

Alcohols, Phenols and Ethers 

Aldehydes, Ketones and Carboxylic acids

Organic Compounds Containing Nitrogen 

 Biomolecules 

Total Marks 

70 

Also read: 

Bihar Board 12th Chemistry Weightage 2024 

The understanding of Bihar Board Class 12th Chemistry Weightage is a must, so that the students can make a preparation plan to clear the Class 12 Bihar Board chemistry exam with good grade. Below is the unit-wise distribution of marks for the Bihar Board (BSEB) chemistry exam.  

Unit

Weightage 

Solid State 

04 

Solutions 

05 

Electrochemistry 

05 

Chemical Kinetics 

05 

Surface Chemistry 

04 

General Principles and Processes of Isolation of Elements 

03 

p-block Elements 

08 

d and f-block elements 

05

Coordination Compounds 

03 

Haloalkanes and Haloarenes 

04 

Alcohols, Phenols, and Ethers 

04 

Aldehydes, Ketones, and Carboxylic Acids 

06 

Organic Compounds and containing Nitrogen 

04 

Biomolecules 

04 

Polymers 

03 

Chemistry in Everyday Life 

03 

Total 

70 

Also read: 

Maharashtra HSC Chapter-wise weightage for Chemistry 2024

Below is the unit-wise distribution of marks for the Maharashtra HSC chemistry exam.  

Unit

Marks  without option 

Marks  with option 

Solid State 

04 

06 

Solutions and Colligative Properties 

05

07 

Chemical Thermodynamics and Energetic 

06 

08 

Electrochemistry 

05 

07 

Chemical Kinetics 

04 

06 

General Principles and Processes of Isolation of Elements 

03 

05 

p-Block Elements 

08 

10 

d and f – Block Elements 

05 

06 

Coordination Compounds 

03 

04 

Halogen Derivatives of Alkanes and Arenes 

04 

06 

Alcohols, Phenols, and Ethers 

04 

06 

Aldehydes, Ketones and Carboxylic Acids 

05  

07 

Compounds Containing Nitrogen 

 

04 

06 

Biomolecules 

04 

06 

Polymers 

03 

04 

Chemistry in Everyday Life 

03 

04 

Class 12 Preparation Tips  2024

Appearing for Class 12 board exams 2024 is one of the important stages in a student’s life as admissions to higher classes depend on the performance of candidates in Class 12 boards. Below are some important preparation tips for the board exams.  

  • Students must check the Class 12 syllabus 2024 properly before starting preparing for the exams.  
  • They must practice mock tests as this will help them understand the exam pattern and nature of questions. They can also practice sample papers. 
  • They must prepare a timetable and follow it religiously. Set targets for each subject to complete the syllabus and revision.   
  • Make sure that you get sound sleep of at least seven hours every night before the examination.   
  • Proper intake of food to remain in good health before the examination is very important.   
  • Taking small breaks in between studies. It will help you remain stress-free, especially during the exam session.   

Read more: 

Q:   Can I go to washroom during ISC board exam?

A:

When appearing for the ISC board exams, you must feel relaxed and comfortable. Yes, you will be allowed to go to the washroom during the examination but only once and with an invigilator. Students often use washroom for using unfair means and cheat in board exams, however, they must know that the invigilator can frisk them anytime during the exam duration. So, it is recommended to use washroom only when needed.

Q:   When will the BSEB 12th exam date be announced?

A:

Bihar School Examination Board will announce the BSEB class 12 timetable 2025 on December 7, 2024. The board released the Bihar Board Inter Time Table 2025 online on its official website at biharboardonline.com and biharboardonline.bihar.gov.in. Students can check the same also on this page. Class 12 time table 2025 Bihar Board mentions the subject-wise exam date, exam commencement and ending time, reporting time, and more. After releasing the BSEB 12th time table, the board will also publish the dummy admit card for all the students who have registered for the exam.

Q:   Can I go to washroom during CBSE 12th board exam?

A:

When appearing for the CBSE board exams, you must feel relaxed and comfortable. Yes, you will be allowed to go to the washroom during the examination but only once and with an invigilator. Students often use washroom for using unfair means and cheat in board exams, however, they must know that the invigilator can frisk them anytime during the exam duration. So, it is recommended to use washroom only when needed.

Q:   When will CBSE conduct CBSE 10th, 12th exams in 2025?

A:

Central Board of Secondary Education CBSE will conduct the CBSE board exams 2025 between February 15 and April 4, 2025. Class 10 exams will be held between Feb 15 and March 18, 2025 while Class 12 exams will be conducted between February 15 and April 4, 2025. The exams are held in pen and paper mode. The Board released the CBSE 10th, 12th syllabus and sample papers on the official website. You must download it and start covering the syllabus topic-wise. It is important that you download and answer the CBSE sample papers 2025 as these will make you familiar with the marking scheme, exam pattern and the different types of questions asked in the exams. 

Check the detailed CBSE date sheet 2025 below:

CBSE 10th date sheet 2025

CBSE 12th date sheet 2025

Q:   When will CBSE conduct CBSE 12th Science exam 2024?

A:

CBSE will conduct CBSE 12th exams 2025 between February 15 and April 4, 2025. The CBSE 12th Science exams 2025 will  be held between February 21 and March 25, 2025. 

Date

Subject

21-Feb-2025

Physics

27-Feb-2025

Chemistry

8-Mar-2025

Mathematics, Applied Mathematics

11-Mar-2025

English elective, English core

21-Mar-2025

Biotechnology

25-Mar-2025

Biology

Students can click on CBSE 12th date sheet 2025 to check the detailed CBSE Class 12 date sheet 2025. 

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Anum Ansari
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"Writing is not about accurate grammar, it's about the honest thoughts you put in it". Having a versatile writing style, Anum loves to express her views and opinion on different topics such as education, entertainme... Read Full Bio

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