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CBSE 2026 Exam Feb 28 LIVE: CBSE Class 12 Chemistry paper today; on-screen marking, analysis

Vaishnavi Shukla | February 28, 2026 | 08:10 AM IST | 4 mins read

The CBSE board 12th Chemistry paper 2026 will begin at 10:30 am and it will end at 1:30 pm today. Updates on answer key, on-screen marking, question papers, analysis, result date and more.

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CBSE 2026 12th Chemistry paper today from 10:30 am to 1:30 pm. (Image: Pexels)
CBSE 2026 12th Chemistry paper today from 10:30 am to 1:30 pm. (Image: Pexels)

The Central Board of Secondary Education (CBSE) will conduct the CBSE Board 2026 Class 12 Chemistry exam today, from 10:30 am to 1:30 pm. As per CBSE Board exam guidelines, no student will be permitted to enter the examination centre after 10 am. To pass the CBSE board Class 12th exam 2026, students must score 33% marks in each subject.

CBSE Class 12th 2026 QP's: Physical Education | Physics | Accountancy: Set 1 | Set 2 | Set 3

CBSE Class 12th 2026 Answer Key: Physics | Accountancy

CBSE Class 12: Free Mock Test | Formula Sheet: Maths | Physics | Chemistry

CBSE Class 12 (All Subjects): PYQ's | Question Bank | Practice QuestionsSample Papers

More than 18 to 20 lakh students are appearing for the CBSE Class 12 board exams in 2026. The exams started on February 17, 2026, and will continue until April 10, 2026, at over 8,000 exam centres. In total, more than 43 lakh students from Class 10 and Class 12 are taking the exams this year.

Also read ‘More exhausting than manual’: How CBSE on-screen marking system is draining teachers it was meant to help

CBSE Class 12 Chemistry Question Paper Analysis 2026

Students will have access to the CBSE Class 12 Chemistry exam analysis 2026, along with solutions for each set of question papers, once the exam ends. Students must know the CBSE Class 12 Chemistry exam pattern, which will help them to plan their preparation and time management properly.

Sections

Type of questions

Number of questions

Marks per question

Total marks

A

MCQs

16

1

16

B

Short Answer questions (SA I)

5

2

10

C

Short Answer questions (SA II)

7

3

21

D

Case-based questions

2

4

8

E

Long Answer questions

3

5

15

Total

33

-

70

CBSE 2026 Class 12 Chemistry Paper: Guidelines

According to the board’s guidelines, students are required to carry their CBSE board admit card 2026 along with their school ID for verification at the examination centre. A 15-minute reading time will be provided from 10:15 am to 10:30 am, allowing students to go through the question paper before the writing time begins.

CBSE On-Screen Marking for Class 12

CBSE has introduced an on-screen evaluation system for the CBSE Class 12 board exams from 2026 as a reform to enhance efficiency, transparency, and speed in the assessment process. Under the CBSE OSM system, answer booklets are scanned and uploaded to a digital platform — CBSE Onmark (cbse.onmark.co.in) — where teachers assess responses through a computer-based interface.

While the board taken this initiative as a step towards modernisation, several teachers involved in the evaluation process have expressed concerns that the rollout has been hurried and that the training provided was inadequate.

The CBSE board will conclude the CBSE Class 12th exams 2026 for 114 subjects on April 10 for more than 16 lakh students.

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CBSE board Chemistry 12th paper 2026 will be held from 10:30 am to 1:30 pm today. Updates on paper patter, on-screen marking, question papers, analysis, result date and more.

February 28, 2026 | 08:10 AM IST

CBSE Class 12 Chemistry exam will be held today

The CBSE board will conduct the Class 12th Chemistry exam today, February 28, from 10:30 am to 1:30 pm.

February 28, 2026 | 07:50 AM IST

CBSE Class 12 Chemistry most repeated questions

Frequently asked questions in CBSE Class 12 Chemistry generally come from important chapters like electrochemistry, coordination compounds, organic chemistry, and chemical kinetics. Practising these CBSE Class 12 Chemistry most repeated questions helps students understand the key concepts better and improves their chances of scoring high marks in the board exam.

February 28, 2026 | 07:24 AM IST

CBSE Class 12 hall ticket 2026 download

CBSE Class 12 hall tickets for the 2026 exams are now available. Regular students need to get their admit cards from their schools, which are downloaded through the Pariksha Sangam portal using the school login. Private candidates can download their CBSE Class 12th hall tickets from the CBSE website using their application number or previous roll number. 

February 28, 2026 | 06:30 AM IST

CBSE Class 12 Chemistry timings

The Central Board of Secondary education (CBSE) will conduct the CBSE Class 12 Chemistry paper today from 10:30 am to 1:30 pm.

February 28, 2026 | 05:30 AM IST

CBSE Class 12 Chemistry total marks

The CBSE Class 12 Chemistry paper will be held for a total of 100 marks, where 70 will be given from theory and 30 from project. 

February 28, 2026 | 04:30 AM IST

CBSE APAAR ID mandatory?

Central Board of Secondary Education has made it mandatory for students to provide their APAAR ID while submitting their board examination registration forms. The decision follows the board’s observation that by the 2025–26 academic session, fewer than 50% of students in affiliated schools had generated an Automated Permanent Academic Account Registry (APAAR) ID.

February 28, 2026 | 03:30 AM IST

CBSE guidelines on using unfair means

According to the CBSE board, the updated penalties for cheating in exam are as follows:

If a candidate is found cheating in any subject, the result for that subject will be cancelled and cannot be substituted with a sixth or seventh subject for the purpose of being declared “pass.”

Such cases will be placed under the compartment category, and the candidate will be required to reappear in that specific subject.

These rules will be equally applicable to all Class 10 CBSE examinations from 2026 onward.

February 28, 2026 | 02:30 AM IST

CBSE Class 12 board exam 2026

The inorganic chemistry section of the CBSE Class 12 Chemistry paper will include coordination compounds, d- and f- block elements, and p-block elements.

February 28, 2026 | 01:30 AM IST

CBSE Class 12 Chemistry: Organic section details

The organic chemistry section will have questions on Haloalkanes and Haloarenes, Alcohols, Phenols and Ethers, Aldehydes, Ketones and Carboxylic Acids, and Amines.

February 28, 2026 | 12:30 AM IST

CBSE Class 12 Chemistry high weightage topics

The Physical chemistry section will have high weightage topics such as electrochemistry, chemical kinetics, and solutions. 

February 27, 2026 | 11:30 PM IST

Will CBSE Class 12 Chemistry paper have internal choices?

Yes, the board will provide the internal choices in most sections, except MCQ, which will not have any section

February 27, 2026 | 10:30 PM IST

CBSE Class 12 Chemistry paper sections

The CBSE Class 12 Chemistry paper will be divided into three sections - physical, organic, and inorganic chemistry.

February 27, 2026 | 10:00 PM IST

CBSE Class 12 Chemistry exam pattern

The CBSE Class 12 Chemistry paper will include multiple-choice questions (MCQs), short-answer, and long-answer questions.

February 27, 2026 | 09:30 PM IST

CBSE Class 12 Chemistry: Focus on formula-based questions, say experts

Candidates appearing for the CBSE Class 12 Chemistry paper tomorrow should focus on high-scoring topics and formula-based questions, experts say.

February 27, 2026 | 08:54 PM IST

CBSE Class 12 Chemistry paper exam timings

The Central Board of Secondary Education (CBSE) will conduct the CBSE Class 12 Chemistry paper tomorrow from 10:30 am to 1:30 pm.

February 27, 2026 | 08:34 PM IST

Which CBSE Class 12 exam tomorow?

CBSE board will conduct the CBSE board exam 2026 for Class 12 chemistry paper tomorrow from 10:30 am to 1:30 pm.

February 27, 2026 | 07:20 PM IST

Sections in CBSE Class 12 Chemistry paper

There will be three sections in the CBSE Class 12 Chemistry paper. Questions will be based on Organic Chemistry, Inorganic Chemistry and Physical Chemistry.

February 27, 2026 | 07:00 PM IST

CBSE Board Exam 2026: APAAR ID mandatory

Central Board of Secondary Education has made it mandatory for students to provide their APAAR ID while submitting their board examination registration forms. The decision follows the board’s observation that by the 2025–26 academic session, fewer than 50% of students in affiliated schools had generated an Automated Permanent Academic Account Registry (APAAR) ID.

At its governing body meeting in December, the board also approved the introduction of two levels of examinations in Mathematics, Science, and Social Science for Class 10, beginning with the 2028 academic session.

CBSE: APAAR ID must for LOC registration from 2026-27 session; two-level Class 10 exams from 2028

February 27, 2026 | 06:31 PM IST

CBSE board exam guidelines 2026

Students are required to arrive at the examination centre at least 30-45 minutes before the reporting time. No one will be allowed to enter the examination hall after the reporting time. Students must carry the admit cards issued by CBSE. Students without admit cards will not be permitted to sit in the examination. The answer booklets and question papers will be distributed 15 minutes before the exam starts. 

February 27, 2026 | 06:19 PM IST

CBSE Class 12 Chemistry exam pattern

CBSE Class 12 Chemistry exam pattern is show below.

Section

Type of Questions

No. of Questions

Marks per Question

Total Marks

A

Multiple Choice Questions (MCQs)

16

1

16

B

Short Answer Questions (SA I)

5

2

10

C

Short Answer Questions (SA II)

7

3

21

D

Case-based Questions

2

4

8

E

Long Answer Questions

3

5

15

Total


33


70


February 27, 2026 | 05:47 PM IST

CBSE Board Exams 2026: Strict rules on cheating

According to the CBSE board, the updated penalties for cheating in exam are as follows:

  • If a candidate is found cheating in any subject, the result for that subject will be cancelled and cannot be substituted with a sixth or seventh subject for the purpose of being declared “pass.”
  • Such cases will be placed under the compartment category, and the candidate will be required to reappear in that specific subject.
  • These rules will be equally applicable to all Class 10 CBSE examinations from 2026 onward.

February 27, 2026 | 05:30 PM IST

CBSE Board Exam 2026 Class 12 exam tomorrow

CBSE board will conduct the CBSE board exam 2026 for Class 12 chemistry paper tomorrow from 10:30 am to 1:30 pm.

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