Download the CBSE Class 12 Chemistry Sample Paper 2027 PDF with its marking scheme (solutions) – the official CBSE sample question paper (SQP) for the 2026-27 session, the paper to practise for the CBSE Class 12 board exam 2027. It is a 70-mark, 3-hour paper with 33 questions in 5 sections. The pattern is the same as the 2026 sample paper. The 2026 and 2025 sample papers are also here. Students also call it the CBSE 12th Chemistry model question paper 2027 or model test paper – it is the same official CBSE paper.
CBSE Class 12 Chemistry Sample Paper 2027 PDF Download
Open a paper to read it online or download the PDF. The marking scheme has the answers, with the marks for each step.
| Year | Document | Download |
|---|---|---|
| 2027 | CBSE Class 12 Sample Paper 2027 for Chemistry | View PDF |
| 2027 | CBSE Class 12 Sample Paper 2027 Solution (Marking Scheme) for Chemistry | View PDF |
| 2026 | CBSE Class 12 Sample Paper 2026 for Chemistry | View PDF |
| 2026 | CBSE Class 12 Sample Paper 2026 Solution for Chemistry | View PDF |
| 2025 | CBSE Class 12 Sample Paper 2025 for Chemistry | View PDF |
CBSE 12th Chemistry Model Question Paper 2027 – Quick Facts
| Board | Central Board of Secondary Education (CBSE) |
| Class | Class 12 |
| Subject | Chemistry (code 043) |
| Session | 2026-27 – for the board exam 2027 |
| Marks and time | 70 marks, 3 hours |
| Questions | 33 questions in 5 sections |
| Solutions | Yes – official CBSE marking scheme |
| Older papers | 2026, 2025 |
| Released by | CBSE (cbseacademic.nic.in) |
CBSE Class 12 Chemistry Sample Paper 2027 – Read Online
CBSE Class 12 Chemistry Paper Pattern 2027
How the 2027 sample paper is set (from the paper itself) – 70 marks, 3 hours, 33 questions:
| Section | Questions | Type | Marks each | Total |
|---|---|---|---|---|
| A | 1–16 | Multiple Choice Questions (Q13–16 are Assertion-Reason) | 1 | 16 |
| B | 17–21 | Very short answer | 2 | 10 |
| C | 22–28 | Short answer | 3 | 21 |
| D | 29–30 | Case-based / data-based (sub-parts of 1, 1 and 2 marks) | 4 | 8 |
| E | 31–33 | Long answer | 5 | 15 |
| Total | 33 | 70 |
Choice: No choice in Section A; either/or choice in Q17 (Section B), Q27 (Section C), the 2-mark sub-part (III) of both case studies Q29 and Q30, and all three Section E questions (Q31–Q33).
- All questions are compulsory.
- Use of log tables and calculators is not allowed.
- For Section A, write the correct choice as well as the answer.
- A separate question is provided for visually impaired candidates in lieu of questions with visual inputs (here Q5, Q19, Q23 and the Q29 case study).
Unit-wise Marks in the Chemistry Sample Paper 2027
Marks for each unit (counted question by question from the 2027 paper):
| Unit | Questions | Marks |
|---|---|---|
| Solutions | Q5, Q25, Q28 | 7 |
| Electrochemistry | Q3, Q12, Q21, Q33 | 9 |
| Chemical Kinetics | Q6, Q11, Q18, Q23 | 7 |
| D- and f-Block Elements | Q9, Q14, Q17, Q22 | 7 |
| Coordination Compounds | Q2, Q16, Q32 | 7 |
| Haloalkanes and Haloarenes | Q10, Q20, Q27 | 6 |
| Alcohols, Phenols and Ethers | Q8, Q15, Q29 | 6 |
| Aldehydes, Ketones and Carboxylic Acids | Q24, Q31 | 8 |
| Amines | Q1, Q4, Q13, Q26 | 6 |
| Biomolecules | Q7, Q19, Q30 | 7 |
What Is New in the Chemistry Sample Paper 2027?
Compared with the 2026 sample paper (session 2025-26):
- No change in pattern – same 33 questions, 70 marks, 3 hours and Sections A–E with 16/10/21/8/15 marks (16×1, 5×2, 7×3, 2 case-based ×4, 3×5) as the 2025-26 sample paper.
- General Instructions now include a line that a separate question is provided for visually impaired candidates in lieu of questions with visual inputs; 2026-27 gives such alternatives for Q5, Q19, Q23 and Q29 (2025-26 had them for Q18, Q29 and Q30 without a general instruction).
- Section C choice changed: 2025-26 Q27 asked students to attempt any 3 of 4 conversions; 2026-27 Q27 is an either-A-or-B question. Choice in Q17, Q29, Q30 and Q31–Q33 is unchanged in placement.
- Long answers rearranged: 2025-26 Section E had Q31 and Q32 as 5×1 one-mark parts (aldehydes/acids/amines; biomolecules) and Q33 (kinetics) as 3+2; in 2026-27 Q31 (aldehydes, ketones, acids) is 3×1 + 2, Q32 (coordination compounds) is 5×1 and Q33 (electrochemistry) is 3+1+1 or 3+2.
- General Instruction 3 now calls Section B ‘very short answer’ (2025-26: ‘short answer’).
- Footer note changed from ‘assessment scheme of the Academic Session 2024-25 will continue in … 2025-26’ to ‘There is no change in the Question Paper Design and Assessment Pattern for Academic Session 2026-27’.
Questions from the Chemistry Sample Paper 2027
Two questions from the 2027 paper, to show the level:
- Section A, 1 mark: If half-life of a first order reaction is 16 minutes, how much time does it take to complete 75% of the reaction? (A) 16 min (B) 32 min (C) 48 min (D) 64 min
- Section D, 4 marks: Case study (Q30) – Identification of carbohydrate: a water-soluble plant carbohydrate gives a brick-red precipitate with Benedict’s reagent and on hydrolysis gives only one type of monosaccharide. (I) A positive Benedict’s test shows it is a … (MCQ). (II) Which of sucrose, lactose, starch, glycogen are plant-based? (MCQ). (IIIA) Is the sample most likely glucose, fructose, sucrose, lactose or maltose? Justify. OR (IIIB) Ravi says it is starch – do you agree? Why or why not? (2)
CBSE Class 12 Chemistry Marking Scheme 2027 (Solutions)
The 2026-27 marking scheme gives the correct option with a brief reason for every MCQ and Assertion-Reason question, and value-point answers with ½/1-mark splits for Sections B–E – balanced equations, named reactions with reagents, conversion sequences, Nernst-equation and molar-conductivity calculations, a reagent flowchart (Q31A II) and separate answers for the visually-challenged versions. Check your answers against it after you solve the paper.
Chemistry Marking Scheme 2027 – Read Online
How to Score Well – Tips from the 2027 Paper
- Data-reading is tested heavily: Q23 asks for Ea from a log k vs 1/T table/graph (slope = −Ea/2.303R) and Q29 needs pKa values read from a bar chart of substituted phenols – practise extracting slopes and values without a calculator.
- Section A asks you to write the correct choice and the answer; many MCQs need a short deduction (e.g. Q1 classifies amines P, Q, R from boiling points and pKb before choosing).
- Learn named reactions with reagents and intermediates: Q24 (3 marks) asks you to name aldol condensation, Etard reaction and Wolff-Kishner reduction and fill the missing reagent/product.
- Coordination compounds carry 7 marks, five of them in one 5×1 long question (Q32) – revise isomerism/optical activity, crystal-field splitting, primary vs secondary valency and colour of complexes.
- Expect experiment-based reasoning: Q33A gives measured EMFs of a Zn–Cu cell at different concentrations and asks for the Nernst value (1.07 V) and why the measured value differs.
- Solve the 2027 paper in one sitting with a timer, check it with the marking scheme, then solve the 2026 paper a few days later.
More Class 12 Chemistry Papers and Study Material
Practise past board papers, or plan your revision with the syllabus and important questions for Class 12 Chemistry:
CBSE Class 12 Chemistry Sample Paper 2027 – FAQs
Is the CBSE Class 12 Chemistry Sample Paper 2027 out?
Yes. CBSE has released the Class 12 Chemistry sample paper 2027 for the 2026-27 session with its marking scheme – both are in the table on this page, free.
Is the CBSE Class 12 Chemistry Sample Paper 2027 available with solutions?
Yes. The official CBSE marking scheme is the solution – it gives the answers and the marks for each step. Download it from the table above or read it online on this page.
Has the CBSE Class 12 Chemistry paper pattern changed for 2027?
No. CBSE says there is no change in the question paper design for 2026-27. The 2027 sample paper keeps the 2026 pattern – 70 marks, 3 hours, 33 questions in 5 sections. Small changes: General Instructions now include a line that a separate question is provided for visually impaired candidates in lieu of questions with visual inputs; 2026-27 gives such alternatives for Q5, Q19, Q23 and Q29 (2025-26 had them for Q18, Q29 and Q30 without a general instruction).; Section C choice changed: 2025-26 Q27 asked students to attempt any 3 of 4 conversions; 2026-27 Q27 is an either-A-or-B question. Choice in Q17, Q29, Q30 and Q31–Q33 is unchanged in placement..
How many marks and questions are in the CBSE Class 12 Chemistry Sample Paper 2027?
It is a 70 marks, 3 hours, 33 questions paper – Section A: 1–16 (16 marks); Section B: 17–21 (10 marks); Section C: 22–28 (21 marks); Section D: 29–30 (8 marks); Section E: 31–33 (15 marks).
Which units carry the most marks in the Chemistry sample paper 2027?
In the 2027 sample paper: Electrochemistry (9 marks), Aldehydes, Ketones and Carboxylic Acids (8 marks), Solutions (7 marks).
Is the CBSE 12th Chemistry model question paper 2027 the same as the sample paper?
Yes. CBSE calls it the sample question paper (SQP); students also search for it as the 12th Chemistry model question paper or model test paper – it is the same official paper on this page.
Will the board exam paper be the same as the sample paper?
No – the CBSE Class 12 board exam 2027 has different questions, but it follows the same pattern as the sample paper: the same sections, marks and question types.