CBSE 12th Science - Results, Exam Dates, Syllabus & Sample Papers

Students need to score at least 33 percent in all subjects and a minimum aggregate of 33 percent in CBSE 12th board exams in order to clear the examinations. 

The Board released the CBSE 12th syllabus and marking scheme for all subjects. Students must ensure to complete their syllabus and know the exam pattern well. They must nalso download and solve the CBSE 12th sample papers and previous years' question papers to perform well in the exams. 

Once done with the syllabus and practice, students will be able to clear the 12th board examinations will good percentage.  

CBSE released the CBSE 12th sample papers 2026 on the official website- cbseacademic.nic.in. You can download CBSE Class 12 sample question papers 2026 from the official website or from this page too. Students must solve and practice the CBSE 12th question papers of previous years' to know the marking scheme, the types of questions asked in the exam, gauge the difficulty level and more. 

It is advised that students solve and practice the CBSE sample papers to ace the board examinations.

There is no concept of good or bad marks in class 12 CBSE board. You must focus on your studies and work hard towards schieveing good score in the board exams. The concept of good/bad marks can be benchmarked by you depending on the stream/career you have chosen for yourself. If you wish to enter IIT and become an engineer, you must aim for 90+ percentage, so on and so forth. 

Thus, set an aim for yourself and build a way to reach the goal and THAT shall be good enough for you.

All the best!

Yes, the board provides sufficient preparation leaves for you to prepare for the exams. Students are advised to finish their syllabus and practice the sample papers well ahead in time so as to avoid any panic situation once exams begin. 

No, CBSE released the CBSE Class 12 date sheet for all subjects together. However, to make the exam dates simpler to find and use, Shiksha.com divides and shares the CBSE 12th date sheet according to three streams - Science, Commerce and Arts.

Students can click on CBSE 12th Date Sheet to check stream-wise date sheet for CBSE 12th board exams. 

In case of network problem, you may not be able to download the CBSE Class 12 date sheet from the official website. In such a situation, you can click on CBSE date sheet Class 12 where we have provided the official date sheet PDF for download.

Following are some tips to improve the writing and presentation skills for the CBSE 12th board exams.

• Students must write the answers neatly. The hand writing should be legible.
• Write the answers with proper heading and subheading.
• Highlight your important points.
• Cross out the errors neatly with single line.
• Divide the time for each question to avoid rushing.  
• Practice writing the previous year question papers.

Yes, you can attempt questions in any sequence in CBSE board class 12. Just ensure that while attempting your CBSE board exam that you have attempted all the question with a question number written in such a way that examiner can see it properly. And in order to get good marks, it is important to make an impression which can be made by attempting those questions first that you know well. Thus, if you know question no. 12, then instead of 1, 2, attempt those question that you remember properly. 

Hi, Most of the times, students start preparing for the exams at the last moment which leads to lack of confidence and stress during writing exams. I would suggest you to start studying from the beginning of the year. Prepare a time table and follow it. Everyday study for few hours so that by the time you have your exams, you will be prepared for it which will be an instant confidence booster for you. Preparation and practice is the key to performance in the exams. All the best.

CBSE does not advise students to do selective study for CBSE Class 12 examinations. The Board has prescribed syllabus for every subject. Students are expected to study thoroughly from the entire CBSE 12th syllabus and understand the concepts in order to score good marks in exams.

No, without the admit card, you won't be allowed to write the CBSE 12th exam. It is suggested that you remember to carry this  utmost important document; otherwise you either will be wasting your time getting it from home or will mis the exam and will be awarded a zero in the subject.

You will need the details mentioned on your CBSE 12th admit card to check your result. Its okay if you have the photocopies of your hall ticket and lost the original one. 

However, it is always advised to keep the documents like CBSE Class 12 admit card secured till the announcement of results.

You must not forget to carry your CBSE 12th admit card on all exam days. In case you forget, you will not be allowed to write the exam. Along with the CBSE 12th admit card and school ID, students must also carry their pens, pencils, ruler. geometry box etc.

The board releases the CBSE 12th admit card in the first week of February on the official website. Students  need to collect their admit card from their school respectively.  The CBSE 12th exams are held from February until April every year.  

Students can check and download CBSE Class 12 Chemistry Syllabus 2026 by clicking on link. Distribution of marks is as follows:

• Some Basic Concepts of Chemistry - 7 marks
• Structure of Atom - 9 marks
• Classification of Elements and Periodicity in Properties - 6 marks
• Chemical Bonding and Molecular Structure - 7 marks
• Chemical Thermodynamics -9 marks
• Equilibrium - 7 marks
• Redox Reactions- 4 marks
• Organic Chemistry: Some basic Principles and Techniques  - 11 marks
• Hydrocarbons - 10 marks

Click on CBSE 12th Chemistry syllabus 2026 to download complete syllabus. 

Not exactly the same, but, CBSE can ask questions similar to what were asked in the previous years of CBSE 12th exams. Thus, you are advised to download and practice the previous years' question papers thoroughly for better preparation. 

 The exam pattern shares the marking scheme, weightage to every topic, duration of exam and more. Students must know the CBSE exam pattern as this helps them form a strategy and to decide which question to solve first. 

Here's the chapter-wise distribution of marks in CBSE 12th 2026. Students can click on the link provided to download the complete CBSE 12th Maths Exam pattern 2026.

Topic	Marks
Relations & Functions	08
Calculus	35
Algebra	10
Vectors & 3-Dimensional Geometry	14
Linear Programming	05
Probability	08

In the Accountancy subject, the CBSE Board has decided to do away with the answer books wherein tables were provided for the subject of Accountancy.

 

If you need any idea about the type of questions that can come in the exam, you must go through the CBSE 12th sample papers and CBSE Class 12 previous year question papers. In addition, you can also understand the most important questions and those that get repeated. Hence, students are advised to practice the previous years' CBSE 12th question papers and sample papers for better preparation. 

Shiksha.com has uploaded the CBSE 12th question papers 2025 of all subjects on its page. Students can click on CBSE 12th question papers 2025 to download and start practising them. 

The Board has also released the CBSE 12th sample papers 2026 for all subjects on the official website- cbse.nic.in. Students can download them from the link provided above.

The questions asked in CBSE 10th, 12th board exams are taken from NCERT textbooks. The questions are based on concepts and exercises included in these books or may be slightly modified versions of them. Further, questions from previous years' ques papers and, in some cases, the NCERT Exemplar problems for Science and Mathematics are also included. 

Students need not worry about the accuracy of the CBSE 12th result released online. CBSE Class 12 result is released after undergoing various checking processes thus, there are very low chances for the CBSE 12th result released online to be incorrect. Students are advised to collect the marklist from the school after the CBSE 12th result is announced. 

Students can check their CBSE 12th result on the official website- cbse.nic.in. They can also check their results via IVRS, SMS, Digilocker and Umang app. For more details, click on CBSE Class 12 result.