CBSE 12 Chemistry Answer Key 2026 and Question Papers, Download PDF All SETs

The CBSE Class 12 Chemistry board exam 2026 was conducted today, 28 February 2026. The exam lasted for 3 hours, from 10:30 AM to 1:30 PM, with an additional 15 minutes given for reading the question paper.

Here we are providing a detailed analysis of student responses, expert opinions, and the difficulty level of the paper including expected good scores, time-consuming sections, and toughest questions.

We will share the CBSE Class 12 Chemistry Question Paper 2026 PDF and answer key to help students check their answers and evaluate their performance. Direct link to download CBSE 12th Chemistry Question Paper 2026 is available on this page.

CBSE Class 12 Chemistry Question Paper 2026 - Download PDF

The CBSE Class 12 Chemistry question paper 2026 for all sets will be available for download after the exam. Students can check the questions and compare their answers.

👉 CBSE Class 12 Chemistry Question Paper 2026 Set 1 (Update Soon)

👉 CBSE Class 12 Chemistry Question Paper 2026 Set 2

👉 CBSE Class 12 Chemistry Question Paper 2026 Set 3 (Update Soon)

CBSE 12th Chemistry Exam Analysis 2026

Student and Expert Feedback (Initial Reaction)

As per the initial students’ feedback, the overall difficulty level of the Chemistry paper was easy. The section A and B had direct NCERT-based questions. Meanwhile, application-based numericals were a little tricky. The newly introduced competency-based questions tested the conceptual understanding and required multi-step calculations.

Branch-wise Level of Difficulty

The chemistry syllabus is divided into three main branches, i.e. Physical chemistry, organic chemistry and inorganic chemistry. Students can check the branch-wise difficulty level below:

Branch	Level of Difficulty
Physical Chemistry	Easy but lengthy
Organic Chemistry	Moderate
Inorganic Chemistry	Easy

Section-wise Difficulty Level

The class 12 CBSE Chemistry question paper 2026 was divided in 5 sections. The section-wise difficulty level is provided below:

Section	Level of Difficulty
Section A	Easy to moderate
Section B	Easy
Section C	Easy
Section D	Moderate and time-consuming
Section E	Moderate

CBSE Class 12 Chemistry Overall Difficulty Level Assessment

Section / Aspect	Difficulty	Key Highlights
Overall	Moderate	Well-balanced, student-friendly, and strictly NCERT-aligned.
Physical Chemistry	Moderate & Numerical-heavy	Required accurate formula application and clear step-by-step calculations (e.g., Electrochemistry, Kinetics).
Organic & Inorganic	Easy to Moderate	Direct naming reactions and straightforward conversions; Inorganic reasoning questions required clear conceptual knowledge.
MCQs (Section A)	Moderately Tricky	Concept-driven; tested deep understanding of NCERT lines and logical reasoning.
Case-Study / Subjective Qs	Easy to Moderate	Straightforward and completely syllabus-based; case studies tested application of core concepts.
Time Management	Manageable	Numericals consumed some time, but unlike Accountancy, the overall paper was easily completable within the 3 hours.

CBSE Class 12 Chemistry Unofficial Answer Key 2026

Check the table below for CBSE Class 12 Answer Key 2026 for Chemistry SET 1 for 1 mark questions:

CBSE Class 12 Chemistry Answer Key - SET 2

Q. No.	Question	Answer
1	Which of the following is most basic?	(C) MnO
2	Which of the following curve represents the first order reaction?	(B) (The graph showing t_1/2 is independent of [R]₀)
3	Which of the following solutions will have the highest osmotic pressure?	(B) 0.1 M CaCl₂ (due to highest van't Hoff factor, i=3)
4	For a reaction: N₂+3H₂→2NH₃ the rate of reaction with respect to NH₃ is:	(D) +1/2(Δ[NH₃/Δt]
5	How many Faradays are required to reduce 1 mol of Cr₂O²⁻₇to Cr³⁺ in acidic medium?	(C) 6
6	Which of the following Grignard Reagent will be used to prepare .......	(B) (Cyclohexyl magnesium bromide)
7	The secondary valency of Pt in [Pt(en)₂Cl₂]²⁺ is:	(A) 6 (en is bidentate, so 2×2+2=6)
8	(CH₃)₃C−OC₂H₅ on reaction with HI gives:	(C) (CH₃)₃C−I and C₂H₅−OH
9	Aniline on direct nitration yields:	(C) 51%-para, 47%-meta, 2%-ortho
10	Which of the following is 'not' true about enantiomers?	(B) They have the same specific rotation.
11	An example of non-reducing sugar is:	(B) Sucrose
12	Benzene diazonium chloride on reaction with phenol in weakly basic medium gives:	(D) p-hydroxyazobenzene
13	Assertion: -OH group in phenols is ortho-para directing. Reason: -OH group activates the ring.	(A) Both true; Reason is correct explanation.
14	Assertion: Actinoids show irregularities in electronic configurations. Reason: 5f, 6d, and 7s orbitals have comparable energies.	(A) Both true; Reason is correct explanation.
15	Assertion: Components of azeotropes are easily separated by fractional distillation. Reason: Azeotropes have the same composition in liquid and vapour phase.	(D) Assertion is false; Reason is true.
16	Assertion: Two strands of DNA are complementary. Reason: Hydrogen bonds form between specific pairs of bases.	(A) Both true; Reason is correct explanation.

👉 CBSE Class 12 Study Materials

CBSE Class 12 study material includes latest syllabus, sample papers, NCERT books and solutions, previous year question papers, chapter-wise important questions, case study questions, assertion-reason questions, and competency-based questions — all updated as per the latest CBSE board exam pattern.

CBSE Class 12 Study Materials
CBSE Class 12 Full Study Material	CBSE Class 12 Sample Paper 2025-26
CBSE Class 12 Syllabus 2025-26	CBSE Class 12 Previous Year Papers
NCERT Books For Class 12 Books	NCERT Class 12 Solutions
CBSE Class 12th Important Questions	CBSE Class 12th Case Study Questions
CBSE 12th Assertion & Reason Questions	CBSE Class 12th Competency-Based Questions