CBSE 12 Chemistry Answer Key 2026: The Central Board of Secondary Education (CBSE) has commenced the class 12th Chemistry Exam 2026 today, February 28, 2026. As per the schedule, the CBSE Class 12th Chemistry examination is scheduled from 10:30 AM to 1:30 PM at various centres across the nation.
Students who will appear for the chemistry exam today can use the CBSE 12 Chemistry Answer Key 2026, prepared by our experts, to calculate estimated scores. Also, the detailed CBSE 12th Chemistry Question Paper Analysis can help students evaluate their overall performance.
The CBSE Class 12th Board Chemistry paper is among the major exams. Today, over a duration of 3 hours, the theory exam will be conducted for 70 marks. To pass, students must secure at least 33% marks in both theory and practical exams separately.
CBSE 12 Chemistry Answer Key 2026 Unofficial
The CBSE Class 12th Chemistry question paper is divided into five distinct sections from A to E, containing a total of 33 questions. According to the revised pattern, this year's paper places a heavy emphasis on competency-basedQuestions, which now make up 50% of the paper. These include case-based and assertion-reason questions. Students can proceed to check the CBSE 12 Chemistry Unofficial Answer Key 2026 to calculate their scores.
| Questions | Answers |
|
SECTION - 1 MULTIPLE CHOICE QUESTIONS |
will be updated after 1:30 PM |
| Question 2 | will be updated after 1:30 PM |
CBSE 12 Chemistry Exam Analysis 2026
To evaluate their overall performance, it is crucial to understand the difficulty level of the set CBSE 12 Chemistry Question Paper. Students can go through the overall and section-wise analysis of the chemistry paper based on students’ feedback and the subject expert’s analysis.
| Particulars | CBSE 12 Chemistry Question Paper Analysis 2026 |
| Overall Difficulty Level of the paper | will be updated after 1:30 PM |
| Section A Difficulty level | will be updated after 1:30 PM |
| Section B Difficulty level | will be updated after 1:30 PM |
| Section C Difficulty level | will be updated after 1:30 PM |
| Section D Difficulty level | will be updated after 1:30 PM |
It is crucial for students to note that the CBSE 12 Chemistry Answer Key 2026 is unofficial and can be used for reference purposes only. This will only give students an idea of their performance. For exact scores, students are advised to wait for the final result.
Students who are yet to analyse their performance of Physics exam can go through the CBSE 12th Physics Answer Key 2026 to evaluate their probable scores.
Live Updates
Students have only 15 minutes to complete their paper. A 15 minute warning bell has been rung across the centres. Invigilators are asking students to cross-check the details mentioned on their answer sheet one more time before proceeding to complete the remaining answers. The exam will conclude at 1:30 PM
No, students are not allowed to leave the examination hall early in any case. As per CBSE 2026 guidelines, students are permitted to leave the examination hall at 1:30 PM only, even if they finish their paper early.
The chemistry paper consists of 33 questions divided into five sections - A,B,C,D, and E. The major highlight of the 2026 paper is that 50% of the questions are competency-based, including case-study and assertion-reason types. The theory paper carries 70 marks in total.
The CBSE 12th Board Chemistry exam 2026 commenced promptly at 10:30 AM across 7,574 centres. Students were given a mandatory 15-minute reading time from 10:15 AM to 10:30 AM to analyze the question paper before writing answers. Students are currently in the middle of their 3-hour session. Which will conclude at 1:30 PM.
The paper is not usually very lengthy; however, sufficient time is always required by the students to critically answer the equations. Due to the revised pattern, students find the 2026 pattern lengthy due to competency-based questions in the form of MCQs, case-studies, and assertion-reason.
According to subject experts, students should aim for:
- 30 mins for Section A
- 30 mins for Section B
- 45 mins for Section C
- 30 mins for Section D
- 45 mins for Section E,
- leaving 15 mins for review.
The CBSE Class 12th Chemistry Exam 2026 started after the authorities rang the bell at 10:30 AM. As per the rules, students were given 15 minutes (10:15 to 10:30) to read the question papers. After the long bell at 10:30 AM students have started writing their answers.
Students must always ensure that the chemical equation is balanced. It is of utmost importance to include required state symbols (s,l,g,aq) and mention catalysts or temperature conditions above the arrow. Also, missing a unit can result in a half-mark deduction.
- Aldol Condensation
- Cannizzaro Reaction
- Reimer-Tiemann
- Hoffmann Bromamide degradation
The following branch of the 12th-class chemistry subject carries the highest weightage, and students must pay more attention to these to score well:
- Organic Chemistry - 33 marks
- Physical Chemistry - 23 marks
- Inorganic Chemistry - 14 marks