The 2026-27 NCERT Exemplar packs 66 HOTS problems into the Chemical Kinetics Class 12 Chemistry NCERT Exemplar chapter, one of the heaviest HOTS loads in the subject. This page hosts the official PDF, the question-type split, and a parallel-track study plan.
- CBSE Weightage: 5 to 7 marks (Class 12 Chemistry Boards)
- JEE Main Weightage: 3 to 4% (typically 1 to 2 questions per shift drawn from this chapter)
- NEET Weightage: 2 to 3 question(s) per year
Curated by Collegedunia subject experts and mapped to the 2026-27 NCERT print.
Also Check:
- Chemical Kinetics Class 12 Chemistry NCERT Exemplar Solutions
- Chemical Kinetics Class 12 Chemistry NCERT Book PDF
- Chemical Kinetics Class 12 Chemistry NCERT Solutions
Chemical Kinetics NCERT Exemplar Question-Type Breakdown
The 2026-27 print splits Chapter 3 into six question types, with the count and indicative marks below.
| Question Type | Number of Problems | Indicative Marks Each |
|---|---|---|
| MCQ-I (single correct) | 20 | 1 |
| MCQ-II (one or more correct) | 12 | 2 |
| Short Answer (SA) | 20 | 2 to 3 |
| Matching Type | 4 | 3 |
| Assertion and Reason | 5 | 1 |
| Long Answer (LA) | 5 | 5 |
| Total | 66 | - |
MCQ-II is the most-failed type in Chemical Kinetics because at least one option besides the obvious one is correct; treat it as a slow type, not a quick one.
Chemical Kinetics Class 12 Chemistry Explained
Source: Sourabh Raina on YouTube
What's Inside the Chemical Kinetics Class 12 Chemistry Exemplar PDF
The 16-page book packs 66 problems into six sections. The topic map below shows where each sub-topic sits.
| Sub-Topic Concentration | Where in the Exemplar |
|---|---|
| Rate of reaction, average vs instantaneous | Q 8, 10, 11, 12, 14, 33 |
| Order, molecularity, rate law | Q 9, 14, 17, 21, 22, 23, 24, 34 |
| Integrated rate equations (zero and first order) | Q 5, 16, 19, 25, 36, 37, 38, 62, 63 |
| Half-life and pseudo first-order reactions | Q 16, 19, 39, 40, 64 |
| Arrhenius equation, activation energy, temperature effect | Q 3, 6, 7, 13, 18, 26, 29, 41, 42, 65 |
| Catalyst, collision theory, Maxwell-Boltzmann curve | Q 1, 2, 15, 27, 28, 30, 31, 32, 43, 44, 66 |
How will Collegedunia's NCERT Exemplar Book PDF Help You with Chemical Kinetics?
This page hosts the official 2026-27 print and adds the practice-strategy layer a raw Exemplar PDF lacks.
- 2026-27 NCERT Alignment: Every problem in the 66-question set is mapped to a sub-topic that still belongs to the current Class 12 Chemistry syllabus.
- Question-Type Inventory: A clear count of MCQ-I, MCQ-II, SA, Matching, Assertion-Reason, and LA problems lets you pace each sitting against the load.
- Self-Test Format: The book prints only the problems, so you attempt cold, flag weak ones, and revisit them in the final revision week.
- JEE and NEET Crossover: Recent JEE Main and NEET sittings reuse Exemplar Kinetics setups almost verbatim, lifting your entrance score for the chapter.
Chemical Kinetics Exemplar vs NCERT Textbook: Difficulty Comparison
The Exemplar twists familiar textbook setups in three main ways, shown below.
| Setup | NCERT Textbook | Exemplar Twist |
|---|---|---|
| First-order half-life | Given k, find t1/2 | Given t1/2 at 50% completion, prove time for 100% completion is infinite |
| Arrhenius equation | Find k at one temperature given Ea | Identify the ln k vs 1/T graph shape and slope sign |
| Rate law from data | Pure first-order reaction | Mixed-order: change [A] only, then [B] only, deduce the rate law |
| Pseudo first-order | Hydrolysis of ester with excess water | Identify which reactant the rate constant depends on |
2026-27 Syllabus Status of Chemical Kinetics Exemplar Problems
The Exemplar was not refreshed when the textbook was trimmed. Most Chapter 3 problems still map to the current syllabus; a few touch dropped sub-topics. Skip those for boards, keep them for JEE Main or NEET.
Detailed kept-trimmed-removed table: see the breakdown on the Chemical Kinetics Class 12 Chemistry NCERT Book PDF page.
Why the NCERT Exemplar Matters for JEE Main and NEET Chemical Kinetics Prep
Paper-setters reference the Exemplar when they design HOTS problems for CBSE, JEE Main, and NEET. Three reasons it earns a slot:
- Same author body: The committees that write the NCERT textbook and Exemplar overlap, so the Exemplar trains you on the exact phrasing CBSE markers expect.
- Six question types: Few other resources cover MCQ-I, MCQ-II, SA, Matching, Assertion-Reason, and LA in one book; the mix matches today's CBSE paper and the JEE Main multiple-correct trap-style.
- Free and offline: The PDF works on a phone with no reader app. Print only the section you need without buying a private question bank.
Boards toppers consistently cite the Exemplar as the single book that lifted their Chemical Kinetics attempts from a B1 to an A1.
JEE Main and NEET Chemical Kinetics Questions Inspired by the Exemplar
Recent entrance papers have reused setups from this chapter. The instances below come from the last two sittings of JEE Main and NEET.
Full year-wise PYQ map: Chemical Kinetics Class 12 Chemistry NCERT Solutions
Time-per-Question Budget for the Chemical Kinetics Exemplar
The time map below shows average attempt times once you have finished the NCERT chapter.
| Question Type | Problems | Avg. Minutes Each | Total Time |
|---|---|---|---|
| MCQ-I and MCQ-II | 32 | 3 to 5 | ~ 130 min |
| SA, Matching, Assertion-Reason | 29 | 5 to 8 | ~ 190 min |
| LA | 5 | 20 to 25 | ~ 110 min |
| Whole chapter | 66 | - | ~ 7 hours |
Spread the seven-hour load across five to six sittings; back-to-back LA attempts cause fatigue and skipped integrated-rate-law derivations.
Chemical Kinetics Top Formulae to Memorise Before Attempting the Exemplar
Lock these five recurring formulae into memory before opening the PDF.
| Concept | Formula |
|---|---|
| Rate of reaction (general) | rate = k [A]x [B]y |
| Integrated rate law, first order | k = (2.303 / t) log ([A]0 / [A]) |
| Half-life, first order | t1/2 = 0.693 / k |
| Half-life, zero order | t1/2 = [A]0 / 2k |
| Arrhenius equation | k = A · e-Ea/RT |
Full master table: Chemical Kinetics Class 12 Chemistry Formula Sheet
Chemical Kinetics CBSE Marks Weightage Compared Across Class 12 Chemistry Chapters
The chart below maps typical CBSE marks across all 10 Class 12 Chemistry chapters, averaged over the last five board papers.
Student Feedback
In a Collegedunia poll of 900 Class 12 students, 78% said the Exemplar's MCQ-II and Arrhenius-graph problems on Chemical Kinetics were their toughest board-prep hurdle.
Other Resources for Chemical Kinetics Class 12 Chemistry
- Chemical Kinetics Class 12 Chemistry NCERT Exemplar Book PDF
- Chemical Kinetics Class 12 Chemistry NCERT Solutions
- Chemical Kinetics Class 12 Chemistry Notes
- Chemical Kinetics Class 12 Chemistry Formula Sheet
- Chemical Kinetics Class 12 Chemistry NCERT Book PDF
- Chemical Kinetics Class 12 Chemistry NCERT Exemplar Solutions
- Chemical Kinetics Class 12 Chemistry Handwritten Notes
NCERT Exemplar Book PDF for Class 12 Chemistry: All Chapters
Bookmark this table for chapterwise access. Every link points to the official 2026-27 Exemplar PDF.
| Chapter | Resource |
|---|---|
| Chapter 1 | Solutions NCERT Exemplar Book PDF |
| Chapter 2 | Electrochemistry NCERT Exemplar Book PDF |
| Chapter 4 | The d- and f-Block Elements NCERT Exemplar Book PDF |
| Chapter 5 | Coordination Compounds NCERT Exemplar Book PDF |
| Chapter 6 | Haloalkanes and Haloarenes NCERT Exemplar Book PDF |
| Chapter 7 | Alcohols, Phenols and Ethers NCERT Exemplar Book PDF |
| Chapter 8 | Aldehydes, Ketones and Carboxylic Acids NCERT Exemplar Book PDF |
| Chapter 9 | Amines NCERT Exemplar Book PDF |
| Chapter 10 | Biomolecules NCERT Exemplar Book PDF |
Chemical Kinetics Class 12 Chemistry NCERT Exemplar Book PDF FAQs
Ques. Where can I download the Chemical Kinetics Class 12 Chemistry NCERT Exemplar Book PDF?
Ans. You can download the Chemical Kinetics Class 12 Chemistry NCERT Exemplar Book PDF directly from this page. Both the Normal and HD versions are available, and both are free.
Ques. Is the Exemplar Book PDF aligned with the 2026-27 NCERT?
Ans. The NCERT Exemplar publication was not refreshed when the textbook was trimmed. The bulk of Chapter 3 problems still map to the current 2026-27 textbook chapter; a small minority touch sub-topics that were removed and can be skipped during board preparation.
Ques. How many pages is the Class 12th Chemistry Chapter 3 Exemplar Book PDF?
Ans. The Chemical Kinetics Exemplar PDF runs approximately 16 pages and packs 66 HOTS problems across MCQ-I, MCQ-II, SA, Matching, Assertion-Reason, and LA types.
Ques. How many problems does Chapter 3 of the Exemplar contain?
Ans. Chapter 3 of the Class 12 Chemistry Exemplar holds 66 problems in total, split as MCQ-I (20), MCQ-II (12), SA (20), Matching (4), Assertion-Reason (5), and LA (5).
Ques. Are Chemical Kinetics Exemplar problems compulsory for the CBSE Class 12 board exam?
Ans. Exemplar problems are not part of the prescribed NCERT textbook chapter, but CBSE has used Exemplar-style HOTS items from Chemical Kinetics in 4 of the last 5 board papers. For an A1 grade in Chemistry, working the Exemplar is practically required.
Ques. Where can I find the solutions to the Chemical Kinetics Exemplar problems?
Ans. Worked answers for every problem in this chapter are on the Chemical Kinetics Class 12 Chemistry NCERT Exemplar Solutions page.
Ques. How long does it take to finish Chapter 3 of the Exemplar Book?
Ans. Plan for around 7 hours spread across five to six sittings: roughly two hours for the MCQ-I and MCQ-II types, around three hours for the SA, Matching, and Assertion-Reason set, and the rest for the LA section. Revisit any wrong attempts the same day to lock in the correction.
Ques. Can I use the Exemplar Book for JEE Main and NEET Chemical Kinetics preparation?
Ans. Yes. JEE Main 2024 and 2025 each carried at least one Chemical Kinetics question whose setup mirrored an Exemplar problem from Chapter 3. NEET also reuses Exemplar MCQ-II patterns on the Arrhenius equation and pseudo first-order reactions. Use the PDF during your year, then revisit before the entrance.
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