Download The d- and f-Block Elements Class 12 Chemistry NCERT Exemplar Book PDF here. This is Chapter 4 in the 2026-27 syllabus (legacy Ch 8), the HOTS set CBSE, JEE Main, and NEET setters draw inorganic questions from.
- CBSE Weightage: 4 to 6 marks (Class 12 Chemistry Boards)
- JEE Main Weightage: 2 to 3% (around 1 to 2 questions per shift drawn from this chapter)
- NEET Weightage: 2 to 3 question(s) per year
Also Check:
- The d- and f-Block Elements Class 12 Chemistry NCERT Exemplar Solutions
- The d- and f-Block Elements Class 12 Chemistry NCERT Book PDF
- The d- and f-Block Elements Class 12 Chemistry NCERT Solutions
The d- and f-Block Elements NCERT Exemplar Question-Type Breakdown
The Exemplar splits this chapter across six question types. The table shows how many of each you face.
| Question Type | Number of Problems | Indicative Marks Each |
|---|---|---|
| MCQ-I (single correct) | 18 | 1 |
| MCQ-II (one or more correct) | 10 | 2 |
| Short Answer (SA) | 17 | 2 to 3 |
| Matching Type | 4 | 3 |
| Assertion and Reason | 5 | 1 |
| Long Answer (LA) | 4 | 5 |
| Total | 58 | - |
MCQ-II is the most-failed type here: a second option is usually also correct, often a second oxidation state or cause of colour. Treat it as a slow type.
The d- and f-Block Elements Class 12 Chemistry Explained
Source: Sourabh Raina on YouTube
What's Inside The d- and f-Block Elements Class 12 Chemistry Exemplar PDF
The Exemplar runs about 14 pages with 58 problems. The topic map below shows where each sub-topic sits, so you can target your weakest area fast.
| Sub-Topic Concentration | Where in the Exemplar |
|---|---|
| Position in the periodic table, naming and definition of transition elements | Q 1, 2, 7, 22, 29 |
| Electronic configuration, Cr and Cu exceptions | Q 3, 4, 8, 23, 30, 47 |
| Atomic radius, IE, oxidation states, standard electrode potentials | Q 5, 6, 9, 10, 11, 24, 31, 32, 48 |
| Colour, magnetic behaviour, catalytic and complex-formation properties | Q 12, 13, 14, 25, 33, 34, 35, 49, 56 |
| KMnO4 and K2Cr2O7 preparation, properties, reactions | Q 15, 16, 17, 26, 36, 37, 50, 57 |
| Lanthanoids, lanthanoid contraction, actinoids, comparison | Q 18, 19, 20, 21, 27, 28, 38, 39, 40, 41, 51, 52, 53, 58 |
How will Collegedunia's NCERT Exemplar Book PDF Help You with The d- and f-Block Elements?
This page hosts the official 2026-27 print and adds a practice-strategy layer.
- 2026-27 NCERT Alignment: Every problem is mapped to a sub-topic still in the current syllabus.
- Question-Type Inventory: A clear count of all six types helps you pace each sitting.
- Self-Test Format: The book prints only the problems, so you attempt cold and flag weak ones.
- JEE and NEET Crossover: Recent sittings reuse Exemplar d-block setups almost verbatim.
The d- and f-Block Elements Top Reactions and Formulae to Memorise Before Attempting the Exemplar
Most d-block problems hinge on a few half-reactions and one magnetic-moment formula. Memorise these before opening the PDF.
| Concept | Expression |
|---|---|
| Spin-only magnetic moment | s = √n(n+2) BM (n = unpaired electrons) |
| Acidic permanganate half-reaction | MnO4- + 8H+ + 5e- → Mn2+ + 4H2O |
| Acidic dichromate half-reaction | Cr2O72- + 14H+ + 6e- → 2Cr3+ + 7H2O |
| Chromate-dichromate equilibrium | 2CrO42- + 2H+ Cr2O72- + H2O |
| Lanthanoid configuration (general) | [Xe] 4f1-14 5d0-1 6s2 |
Full master table: The d- and f-Block Elements Class 12 Chemistry Formula Sheet
The d- and f-Block Elements Exemplar vs NCERT Textbook: Difficulty Comparison
The Exemplar twists setups you already met in the textbook, usually in one of these ways.
| Setup | NCERT Textbook | Exemplar Twist |
|---|---|---|
| Spin-only magnetic moment | Given n, find μ | Given μ = 5.92 BM, identify the d-block ion (Mn2+ or Fe3+) and justify |
| Oxidation state | State the most stable oxidation state of Mn | Explain why Cu+ is less stable than Cu2+ in aqueous solution despite a stable d10 configuration |
| Lanthanoid contraction | State the contraction | Identify which 4d-5d pair has near-identical radii AND justify with the contraction |
| KMnO4 oxidation | Write the balanced half-reaction | Identify the product when KMnO4 is reduced in neutral, alkaline, and acidic media in the same prompt |
2026-27 Syllabus Status of The d- and f-Block Elements Exemplar Problems
The Exemplar was not refreshed when the textbook was trimmed. Most legacy Ch 8 problems still map to Chapter 4, but a few touch dropped sub-topics. Skip those for boards; keep them for JEE Main or NEET.
Kept-trimmed-removed table: The d- and f-Block Elements Class 12 Chemistry NCERT Book PDF
Why the NCERT Exemplar Matters for JEE Main and NEET d-Block Prep
Paper-setters reference the Exemplar for CBSE, JEE Main, and NEET HOTS problems. Three reasons to use it:
- Same author body: The textbook and Exemplar committees overlap, so it trains the exact phrasing CBSE markers expect.
- Six question types: One book covers MCQ-I, MCQ-II, SA, Matching, Assertion-Reason, and LA, matching the current CBSE paper and JEE multiple-correct style.
- Free and offline: The PDF opens on a phone with no reader app.
JEE Main and NEET d-Block Questions Inspired by the Exemplar
Recent JEE Main and NEET papers reused setups from this chapter.
Full year-wise PYQ map: The d- and f-Block Elements Class 12 Chemistry NCERT Solutions
Time-per-Question Budget for The d- and f-Block Elements Exemplar
Numbers below are average attempt times once you have finished the NCERT chapter.
| Question Type | Problems | Avg. Minutes Each | Total Time |
|---|---|---|---|
| MCQ-I and MCQ-II | 28 | 3 to 5 | ~ 115 min |
| SA, Matching, Assertion-Reason | 26 | 5 to 8 | ~ 170 min |
| LA | 4 | 20 to 25 | ~ 90 min |
| Whole chapter | 58 | - | ~ 6 hours |
Spread the load across four to five sittings; back-to-back LA attempts cause fatigue.
The d- and f-Block Elements CBSE Marks Weightage Compared Across Class 12 Chemistry Chapters
The visual below maps CBSE Class 12 Chemistry marks across all 10 chapters of the 2026-27 NCERT book, averaged over the last five board papers.
Student Feedback
In a Collegedunia poll of 900 Class 12 students, 78% said the d-block Exemplar MCQ-II and lanthanoid-contraction problems were the toughest but best board-exam predictors in this chapter.
Other Resources for The d- and f-Block Elements Class 12 Chemistry
- The d- and f-Block Elements Class 12 Chemistry NCERT Exemplar Book PDF
- The d- and f-Block Elements Class 12 Chemistry NCERT Solutions
- The d- and f-Block Elements Class 12 Chemistry Notes
- The d- and f-Block Elements Class 12 Chemistry Formula Sheet
- The d- and f-Block Elements Class 12 Chemistry NCERT Book PDF
- The d- and f-Block Elements Class 12 Chemistry NCERT Exemplar Solutions
- The d- and f-Block Elements Class 12 Chemistry Handwritten Notes
NCERT Exemplar Book PDF for Class 12 Chemistry: All Chapters
Bookmark this table for chapterwise access to every 2026-27 Exemplar PDF.
| Chapter | Resource |
|---|---|
| Chapter 1 | Solutions NCERT Exemplar Book PDF |
| Chapter 2 | Electrochemistry NCERT Exemplar Book PDF |
| Chapter 3 | Chemical Kinetics 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 |
The d- and f-Block Elements Class 12 Chemistry NCERT Exemplar Book PDF FAQs
Ques. Where can I download The d- and f-Block Elements Class 12 Chemistry NCERT Exemplar Book PDF?
Ans. You can download The d- and f-Block Elements Class 12 Chemistry NCERT Exemplar Book PDF directly from this page. Both the Normal and HD versions are available, and both are free.
Ques. Why is this chapter called Chapter 4 here but Chapter 8 in the Exemplar PDF itself?
Ans. The NCERT Exemplar publication has not been refreshed since the textbook was rationalised, so its internal numbering still reads Chapter 8. In the current 2026-27 Class 12 Chemistry syllabus the chapter sits at position 4, because three earlier inorganic units were removed from the textbook. The chapter content itself is unchanged.
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 the d-block Exemplar problems still map to the current 2026-27 textbook chapter; a small minority touch alloy and named-catalyst sub-topics that were trimmed and can be skipped during board preparation.
Ques. How many pages is the Class 12th Chemistry Chapter 4 Exemplar Book PDF?
Ans. The d- and f-Block Elements Exemplar PDF runs approximately 14 pages and packs 58 HOTS problems across MCQ-I, MCQ-II, SA, Matching, Assertion-Reason, and LA types.
Ques. How many problems does this chapter of the Exemplar contain?
Ans. The d- and f-Block Elements Exemplar chapter holds 58 problems in total, split as MCQ-I (18), MCQ-II (10), SA (17), Matching (4), Assertion-Reason (5), and LA (4).
Ques. Are d-block 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 the d-block in four of the last five board papers. For an A1 grade in Chemistry, working the Exemplar is practically required.
Ques. Where can I find the solutions to the d-block Exemplar problems?
Ans. Worked answers for every problem in this chapter are on the The d- and f-Block Elements Class 12 Chemistry NCERT Exemplar Solutions page.
Ques. How long does it take to finish this chapter of the Exemplar Book?
Ans. Plan for around 6 hours spread across four to five 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 d-block preparation?
Ans. Yes. JEE Main 2024 and 2025 each carried at least one d-block question whose setup mirrored an Exemplar problem from this chapter. NEET also reuses Exemplar MCQ-II patterns on lanthanoid contraction and magnetic moment. Use the PDF during your year, then revisit before the entrance.
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