CBSE Class 12 Chemistry Answer Key 2026 Out – The CBSE Class 12 Chemistry board exam 2026 was successfully conducted by the Central Board of Secondary Education (CBSE Board) for the academic session 2025–26. As per the official schedule, the Class 12 Chemistry exam was held on 28 Feb 2026 in offline mode at different exam centres across India. The theory paper was of 70 marks, while 30 marks were given for practical exams and internal assessment conducted by schools.
After the exam, many students feel confused about numerical questions, organic reactions, chemical equations, and case-study based questions. It is normal to feel nervous while waiting for the results. To help students, the CBSE Class 12 Chemistry Answer Key 2026 is provided here so they can match their answers and calculate their expected marks. With the help of the answer key, students can check step marking, correct chemical formulas, reactions, diagrams, and final answers.
Students can also compare their responses with the Chemistry sample paper class 12 2026 pattern to understand the exam difficulty level. Official updates related to the cbseacademic nic in class 12 chemistry answer key 2026 will be available online. By using the Class 12 Chemistry answer key 2026, students can find their mistakes and estimate their probable score in a simple and accurate way.
CBSE Class 12 Chemistry Exam 2026 Overview
Below are the important details about the CBSE Class 12 Chemistry Board Exam 2026. Students can also check the Chemistry answer key and complete solutions to understand their expected marks after the exam.
CBSE Class 12 Chemistry Exam 2026 Details
| Particulars |
Details |
| Exam Conducting Body |
Central Board of Secondary Education (CBSE) |
| Academic Session |
2025–2026 |
| Exam Name |
CBSE Class 12 Board Exam 2026 |
| Exam Mode |
Offline (Pen and Paper Mode) |
| Subject |
Chemistry (Theory + Practical) |
| Total Marks |
100 Marks (Theory + Practical) |
| Theory Exam Marks |
70 Marks |
| Practical Examination |
30 Marks (Practical + Viva + Record File) |
| Exam Duration |
3 Hours |
| Question Paper Pattern |
MCQs, Case Study Questions, Short Answer Questions, Long Answer Questions, Numerical Questions |
| Passing Marks |
Minimum 33% in Theory and Practical Separately |
| CBSE Class 12 Chemistry Exam Date 2026 |
28 February 2026 |
| Answer Key Availability |
Available after the exam (Unofficial first, Official if released by CBSE) |
| Official Website |
@https://cbse.gov.in |
| Reference Books |
NCERT Chemistry Textbook for Class 12 |
CBSE Class 12 Chemistry 2026 Answer Key (All Sets) PDF Download
After the exam is completed, students will be able to download the CBSE Class 12 Chemistry Question Paper 2026 PDF for all sets.
You will be able to download:
| CBSE Class 12 Chemistry Answer Key with Question Paper 2026 Sets |
Download Link |
Download Link |
| CBSE Class 12 Chemistry SET 1 Question Paper 2026 |
Download PDF |
Answer Key Download |
| CBSE Class 12 Chemistry SET 2 Question Paper 2026 |
Download PDF |
Answer Key Download |
| CBSE Class 12 Chemistry SET 3 Question Paper 2026 |
Download PDF |
Answer Key Download |
Students should download all sets to practice and understand the type of questions asked in the board exam.
CBSE Class 12 Chemistry Question Paper 2026
The CBSE Class 12 Chemistry Answer Key 2026 will be available after the exam on 28 February 2026. Students can use the answer key to:
- Check correct answers
- Calculate expected board exam marks
- Analyze their performance
- Identify mistakes
- Compare answers with different sets
First, some coaching institutes may release an unofficial Chemistry answer key 2026. Later, the official answer key may be released by CBSE (if provided).
Do Check – CBSE Class 12 Physics Answer Key 2026
CBSE Class 12 Chemistry Answer Key 2026 & Paper Structure
CBSE Class 12 Chemistry Question Paper 2026 Structure
The CBSE Class 12 Chemistry Board Exam 2026 was conducted on 28 February 2026 by the Central Board of Secondary Education (CBSE) for the academic session 2025–26. The question paper followed the latest CBSE exam pattern.
The paper was designed to test students’ understanding of concepts, chemical reactions, numericals, reasoning questions, organic conversions, and case-study based problems.
Below is the expected structure of the Class 12 Chemistry 2026 board paper:
| Section |
Question Numbers |
Type of Questions |
Marks per Question |
Total Marks |
Internal Choice |
| A |
1–16 |
Multiple Choice Questions (MCQs) |
1 mark each |
16 |
No |
| B |
17–21 |
Very Short Answer (VSA) |
2 marks each |
10 |
Internal choice in some questions |
| C |
22–28 |
Short Answer (SA) |
3 marks each |
21 |
Internal choice provided |
| D |
29–33 |
Long Answer / Numericals / Organic Reactions |
5 marks each |
25 |
Internal choice in each question |
| E |
34–35 |
Case Study-Based Questions |
4 marks each |
8 |
Internal choice provided |
| Total |
35 Questions |
All Questions Compulsory |
Maximum Marks: 70 |
– |
– |
About CBSE Class 12 Chemistry Answer Key 2026
The CBSE Class 12 Chemistry Answer Key 2026 helps students check their answers after the board exam. With the help of the answer key, students can match their responses and calculate their expected marks.
The answer key includes:
- Correct MCQ answers
- Step-wise solutions for numericals
- Balanced chemical equations
- Organic reaction mechanisms
- Important derivations and reasoning answers
Students should carefully check step marking in long answers and numericals. Sometimes marks are given for writing the correct formula, reaction, or method even if the final answer is slightly different.
Important Instructions for Students
- Write balanced chemical equations properly.
- Mention correct units in numericals.
- Draw neat and labelled diagrams wherever required.
- Show complete steps in calculations.
- Use only blue or royal blue pen in the exam hall.
- Attempt all questions as per instructions.
- Calculators are not allowed in the board exam.
Class 12 Chemistry 2026 Answer Key (All Sets)
The CBSE Class 12 Chemistry Answer Key 2026 (All Sets) will help students evaluate their performance. Chemistry is a subject where formulas, reactions, mechanisms, and step marking are very important.
With the help of the answer key, students can:
- Match their answers with correct solutions
- Check numerical calculations
- Verify organic reactions and conversions
- Calculate their expected score
- Identify mistakes in formulas or concepts
- Improve preparation for competitive exams like JEE and NEET
Students must check their question paper set (Set 1, Set 2, Set 3, Set 4) carefully before calculating marks.
CBSE Class 12 Chemistry 2026 Exam Analysis
After the exam on 28 February 2026, students and teachers shared their reviews about the difficulty level.
As Per Students:
- The paper was moderate but slightly lengthy.
- Organic Chemistry had direct NCERT-based questions.
- Inorganic Chemistry required good memory of reactions.
- Physical Chemistry numericals needed proper time management.
- Case-study questions were concept-based but manageable.
As Per Teachers:
- The paper followed the latest CBSE pattern.
- Most questions were from NCERT textbook and sample papers.
- No questions were out of syllabus.
- The exam tested conceptual understanding more than rote learning.
Overall, the Class 12 Chemistry 2026 board paper was balanced and fair. Students with clear concepts and good practice could score high marks.
How to Use the Class 12 Chemistry 2026 Answer Key Properly?
Follow these simple steps to calculate your marks correctly:
- Download the CBSE Class 12 Chemistry Question Paper 2026.
- Match your answers section-wise (MCQs, short answers, long answers).
- Check formulas, reactions, and units carefully.
- Give yourself marks according to the CBSE marking scheme 2026.
- Add all marks properly to calculate your expected score.
- Compare your score with previous year cut-off trends for better understanding.
This method will help you understand your real performance in the Class 12 Chemistry 2026 board exam.
Conclusion
The CBSE Class 12 Chemistry Answer Key 2026 is very helpful for students who want to evaluate their performance before the official result is declared. Do not panic if you made small mistakes in calculations or reactions.
Class 12 Chemistry Answer Key 2026 related FAQs
Q1. When was the CBSE Class 12 Chemistry Board Exam 2026 conducted?
The CBSE Class 12 Chemistry Board Exam 2026 was conducted on 28 February 2026 for the academic session 2025–26.
Q2. What is the use of the CBSE Class 12 Chemistry Answer Key 2026?
The answer key helps students match their answers with correct solutions and calculate their expected marks before the official result is announced.
Q3. How can I calculate my marks using the Chemistry answer key?
You should match your answers section-wise, check formulas and reactions carefully, follow the CBSE marking scheme, and then add all marks properly.
Q4. Is step marking given in the Chemistry board exam?
Yes, step marking is given in numericals and long answers. Even if the final answer is slightly wrong, you may get marks for correct steps and formulas.
Q5. Was the Chemistry paper 2026 difficult?
As per students and teachers, the paper was moderate and based mainly on NCERT. Students with clear concepts could score good marks.
