CGBSE 12th Exam Pattern for Science
Chhattisgarh Board of Secondary Education 12th 2026 ( CGBSE 12th )
CGBSE 12th exam pattern for Science mentions the marking scheme, duration of exam, types of questions asked, and much more. Know the detailed exam pattern of CGBSE 12th Science exams here
Chhattisgarh Board of Secondary Education (CGBSE) is a state-level board of education responsible for conducting board examination in Chhattisgarh state. The three streams offered by CGBSE are Science, Commerce and Arts. Science is considered as one of the popular streams for Class 12 board aspirants. The main subjects of CGBSE Class 12 Science stream are Maths, Physics, Chemistry, and Biology.
The CGBSE 12th syllabus of all the core subjects of Science stream is extensive. Hence, students need to prepare for the board exam with proper planning and an organised timetable to ensure that the syllabus is completed on time. Along with the syllabus, the students should also know the CGBSE 12th pattern of the exam completely in order to formulate a study plan. The exam pattern includes subject-wise/ topic-wise marks distribution, duration of the exam, and so on. This article discusses the exam pattern of CGBSE Class 12 Science stream.
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CGBSE 12th Exam Pattern and Marking Scheme for Science
The students should know the weightage of every topic in the syllabus for the preparation of CGBSE Class 12 board examination. The exam duration for CGBSE Class 12 board examination is three hours. The marks for theoretical exams is 70 and 30 marks are allotted for practice and projects. The subject-wise marks distribution for CGBSE Class 12 Science stream is given below.
Physics
The total marks allocated for CGBSE Class 12 Physics examination are 100 — 70 marks for the theory paper and 30 marks for the practical assessment.
| Unit |
Marks |
|---|---|
| Sthir Vaidyutiki |
15 |
| Vidyut Dhara |
|
| Chumbkatva tatha Dhara ke Chumbakeey Prabhav |
16 |
| Vidyut Chumbakeey Preran tatha Pratyavarti Dhara |
|
| Vidyut Chumbakeey Tarange |
17 |
| Prakashiki |
|
| VIkiran tatha Dravy ki Dvet Prakarti |
10 |
| Parmanu tatha Nabhik |
|
| Electronic Yuktiyan |
12 |
| Sanchaar Vyavastha |
|
| Total |
70 |
Chemistry
The total marks allocated for CGBSE Class 12 Chemistry examination are 100 — 70 marks for the theory paper and 30 marks for the practical assessment.
| Unit |
Marks |
|---|---|
| Thos Avastha |
23 |
| Vilayan |
|
| Vidyut Rasayan |
|
| Rayaynik Balagtiki |
|
| Prusht Rasayan |
|
| Tatyon k Nishkarshan ke Samanaya Siddhant Avum Prakram |
19 |
| p Block Ke Tatva |
|
| d avum f P Block Ke Tatva |
|
| Upasahasayonjak Yaugiko
|
|
| Haloalkanes tatha Haloarenes |
28 |
| Alcohols, Phenols, tatha Ethers
|
|
| Aldehydes, Ketones tatha Carboxylic Acid
|
|
| Nitrogen Yukt Carbonic Yogik |
|
| Jaiv Anu |
|
| Bahulak |
|
| Dainik Jeevan mein Rasayan |
|
| Total |
70 |
Biology
The total marks allocated for CGBSE Class 12 Biology examination are 100 — 70 marks for the theory paper and 30 marks for the practical assessment.
| Unit |
Marks |
|---|---|
| Prajanan |
14 |
|
|
18 |
| Jeev Vigyaan Aur Maanav Kalyaan |
14 |
| Jaiv Praudyogikee Aur Isake Upyog |
10 |
| Paaristhitikee Aur Paryaavaran |
14 |
| Total |
70 |
Mathematics
Mathematics is one of the important subjects for Class 12 board exams. The total marks allocated for the examination is 100. Here is the chapter-wise breakup of all the topics
| Unit |
Marks |
|---|---|
| Relations and Functions |
10 |
| Algebra |
13 |
| Calculus |
44 |
| Vectors and 3 Dimensional Geometry |
17 |
| Linear Programming |
06 |
| Probability |
10 |
| Total |
100 |
CGBSE 12th 2020 Preparation Tips
Preparing for CGBSE 12th exams is very important. One must plan in order to ace the exams. Some preparation tips to help one in scoring well are given below:
- Manage time: Allocate equal time to all subjects with a special focus on weak areas.
- Practice sample papers: One must practice the CGBSE 12th previous year question papers or sample papers in order to have hands-on with exam pattern, marking scheme, type of questions asked etc. One can also time it in accordance with the actual exam day to reduce exam day stress.
- Revision: Prepare notes and keep time for revision. Refer these notes daily for better retention of important points and formulas.
Read More:
News & Updates
Student Forum
Anything you would want to ask experts?Answered 2 weeks ago
After reaching out to many students who appeared for the CGBSE 12th class exams, the level of Mathematics is moderate to high. However, students also thinks that alll the questions were doable and those who cover the syllabus can easily score marks above 80% in the paper.
M
Contributor-Level 10
Answered 2 weeks ago
Any score above 75% is better in CGBSE class 12th exams. Students who prepare the syllabus can easily obtain marks above 75% in the CG Board class 12 exams.
M
Contributor-Level 10
Answered 2 weeks ago
The board is expected to release the CG Board class 12th 2nd main result 2026 in July/August 2026. An exact CGBSE class 12th 2nd main result 2026 date will be announced by the board.
M
Contributor-Level 10
Answered 2 weeks ago
On paper both exams are not same, however, technically, both exams are same if you look at all the aspects of both the exams. Over the past few years, the board has been organising the CG Board 12th 2nd main exams instead of compartment exams. The students who failed in the final CGBSE 12th exams an
M
Contributor-Level 10
Answered 2 weeks ago
The board will release the CGBSE class 12th time table 2026 for the second main after the final result announcement. However, based on last year's exam date, the board is expected to hold the CG Board 12th 2nd main exams in July 2026.
M
Contributor-Level 10
Answered 3 weeks ago
Maths is considered the most difficult papers among the CGBSE 12th students. Many students also find Physics, Chemsitry, Accountancy, Business Studies a bit difficult. However, those who cover the syllabus can easily obtain good marks in these difficult papers.
M
Contributor-Level 10
Answered 3 weeks ago
From the last two years, the board has been organising the CG Board class 12 second main exams in place of supplementary exams. Students who fail in the class 12th main exams or who want to improve their marks can appear for the CGBSE 12th 2nd phase exams.
M
Contributor-Level 10
Answered 3 weeks ago
After analysing the previous year's CG Board 12th question paper, it can be said that the level of CGBSE 12th exams is easy to moderate. However, many students find Maths paper moderate to tough in the final exams.
M
Contributor-Level 10
Jasleen Kaur Taneja is an education editorial expert at Shiksha.com. She prepares content for school board exams. She has written 1,800+ articles with 2.8 crore reads.
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