d- and f-Block Elements in NEET 2026 — Complete Overview
d- and f-Block Elements is Unit 22 of the NEET Chemistry syllabus as prescribed by the National Testing Agency (NTA). It carries a weightage of 3–5% and typically contributes approximately 3 question(s) per paper, worth 12 marks in the 720-mark NEET examination. Classified as a Medium-difficulty chapter, d- and f-Block Elements is a moderately challenging but highly scorable chapter. Students who prepare it systematically consistently outperform unprepared peers on these questions.
The official NTA syllabus for d- and f-Block Elements comprises 5 topics: General introduction; electronic configuration; occurrence and characteristics of transition metals, General trends in properties of the first-row transition metals: metallic character; ionisation enthalpy; oxidation states; ionic radii; colour; catalytic property; magnetic properties; interstitial compounds; alloy formation, Preparation and properties of K₂Cr₂O₇ and KMnO₄, and 2 more topics. Every topic listed in the NTA NEET syllabus is examinable — NTA does not restrict questions to specific sub-topics. Your preparation must cover all 5 official topics comprehensively to secure full marks from this chapter.
Strategically, d- and f-Block Elements is a high-priority chapter. With 3 expected questions per paper contributing 12 marks, this chapter significantly impacts your NEET rank. Students securing all 12 marks here gain a meaningful advantage over those who skip it.
NEET Chemistry has 28 chapters contributing 45 questions (180 marks) to the total score. d- and f-Block Elements is Chapter 22. This chapter builds on earlier foundational content, applying concepts in more complex scenarios that NEET regularly tests.
For NEET Chemistry, NCERT forms the conceptual foundation. Read NCERT first, then reference books, then solve PYQs. Allocate 2–3 weeks to d- and f-Block Elements based on its Medium difficulty classification.
In the NEET examination, each subject section (Physics, Chemistry, Botany, Zoology) contains 45 questions worth 4 marks each, with –1 negative marking per wrong answer. Questions from d- and f-Block Elements may be straightforward recall-based or scenario-based — requiring students to apply concepts to novel situations. Both question types appear in every NEET paper. Comprehensive chapter preparation ensures you can handle either format confidently.
Topic-by-Topic Analysis — d- and f-Block Elements (NTA NEET Syllabus)
A detailed breakdown of each official NTA topic within d- and f-Block Elements — what NEET tests, how questions are framed, and how to master each sub-topic for NEET 2026.
1. General introduction; electronic configuration; occurrence and characteristics of transition metals
General introduction; electronic configuration; occurrence and characteristics of transition metals is an integral part of the d- and f-Block Elements chapter in NEET Chemistry. This sub-topic is explicitly listed in the NTA-prescribed NEET syllabus, making it fully examinable in every NEET session. NTA regularly frames questions on general introduction; electronic configuration; occurrence and characteristics of transition metals as concept-application MCQs — testing whether students can apply principles in unfamiliar scenarios rather than simply recall definitions.
Questions on general introduction; electronic configuration; occurrence and characteristics of transition metals in NEET typically test one of three types: (1) Direct definition or law statement recall; (2) Numerical application — solving a problem using the relevant formula; (3) Concept boundary — identifying when a principle applies vs when it breaks down. Students who have practised 10–15 NEET PYQs specifically on general introduction; electronic configuration; occurrence and characteristics of transition metals will recognise which type is being tested within seconds of reading the question.
To master general introduction; electronic configuration; occurrence and characteristics of transition metals for NEET 2026: Begin with NCERT Chemistry, then use your reference book for additional context. Write out every key formula relevant to general introduction; electronic configuration; occurrence and characteristics of transition metals, understand each term's SI unit and physical meaning, then solve NEET PYQs filtered to this sub-topic. Students who understand the derivation rather than just the formula handle unfamiliar numerical setups far more confidently.
2. General trends in properties of the first-row transition metals: metallic character; ionisation enthalpy; oxidation states; ionic radii; colour; catalytic property; magnetic properties; interstitial compounds; alloy formation
General trends in properties of the first-row transition metals: metallic character; ionisation enthalpy; oxidation states; ionic radii; colour; catalytic property; magnetic properties; interstitial compounds; alloy formation is an integral part of the d- and f-Block Elements chapter in NEET Chemistry. This sub-topic is explicitly listed in the NTA-prescribed NEET syllabus, making it fully examinable in every NEET session. NTA regularly frames questions on general trends in properties of the first-row transition metals: metallic character; ionisation enthalpy; oxidation states; ionic radii; colour; catalytic property; magnetic properties; interstitial compounds; alloy formation as concept-application MCQs — testing whether students can apply principles in unfamiliar scenarios rather than simply recall definitions.
Questions on general trends in properties of the first-row transition metals: metallic character; ionisation enthalpy; oxidation states; ionic radii; colour; catalytic property; magnetic properties; interstitial compounds; alloy formation in NEET typically test one of three types: (1) Direct definition or law statement recall; (2) Numerical application — solving a problem using the relevant formula; (3) Concept boundary — identifying when a principle applies vs when it breaks down. Students who have practised 10–15 NEET PYQs specifically on general trends in properties of the first-row transition metals: metallic character; ionisation enthalpy; oxidation states; ionic radii; colour; catalytic property; magnetic properties; interstitial compounds; alloy formation will recognise which type is being tested within seconds of reading the question.
To master general trends in properties of the first-row transition metals: metallic character; ionisation enthalpy; oxidation states; ionic radii; colour; catalytic property; magnetic properties; interstitial compounds; alloy formation for NEET 2026: Begin with NCERT Chemistry, then use your reference book for additional context. Write out every key formula relevant to general trends in properties of the first-row transition metals: metallic character; ionisation enthalpy; oxidation states; ionic radii; colour; catalytic property; magnetic properties; interstitial compounds; alloy formation, understand each term's SI unit and physical meaning, then solve NEET PYQs filtered to this sub-topic. Students who understand the derivation rather than just the formula handle unfamiliar numerical setups far more confidently.
3. Preparation and properties of K₂Cr₂O₇ and KMnO₄
Preparation and properties of K₂Cr₂O₇ and KMnO₄ is an integral part of the d- and f-Block Elements chapter in NEET Chemistry. This sub-topic is explicitly listed in the NTA-prescribed NEET syllabus, making it fully examinable in every NEET session. NTA regularly frames questions on preparation and properties of k₂cr₂o₇ and kmno₄ as concept-application MCQs — testing whether students can apply principles in unfamiliar scenarios rather than simply recall definitions.
Questions on preparation and properties of k₂cr₂o₇ and kmno₄ in NEET typically test one of three types: (1) Direct definition or law statement recall; (2) Numerical application — solving a problem using the relevant formula; (3) Concept boundary — identifying when a principle applies vs when it breaks down. Students who have practised 10–15 NEET PYQs specifically on preparation and properties of k₂cr₂o₇ and kmno₄ will recognise which type is being tested within seconds of reading the question.
To master preparation and properties of k₂cr₂o₇ and kmno₄ for NEET 2026: Begin with NCERT Chemistry, then use your reference book for additional context. Write out every key formula relevant to preparation and properties of k₂cr₂o₇ and kmno₄, understand each term's SI unit and physical meaning, then solve NEET PYQs filtered to this sub-topic. Students who understand the derivation rather than just the formula handle unfamiliar numerical setups far more confidently.
4. Lanthanoids: electronic configuration; oxidation states; lanthanoid contraction and its consequences
Lanthanoids: electronic configuration; oxidation states; lanthanoid contraction and its consequences is an integral part of the d- and f-Block Elements chapter in NEET Chemistry. This sub-topic is explicitly listed in the NTA-prescribed NEET syllabus, making it fully examinable in every NEET session. NTA regularly frames questions on lanthanoids: electronic configuration; oxidation states; lanthanoid contraction and its consequences as concept-application MCQs — testing whether students can apply principles in unfamiliar scenarios rather than simply recall definitions.
Questions on lanthanoids: electronic configuration; oxidation states; lanthanoid contraction and its consequences in NEET typically test one of three types: (1) Direct definition or law statement recall; (2) Numerical application — solving a problem using the relevant formula; (3) Concept boundary — identifying when a principle applies vs when it breaks down. Students who have practised 10–15 NEET PYQs specifically on lanthanoids: electronic configuration; oxidation states; lanthanoid contraction and its consequences will recognise which type is being tested within seconds of reading the question.
To master lanthanoids: electronic configuration; oxidation states; lanthanoid contraction and its consequences for NEET 2026: Begin with NCERT Chemistry, then use your reference book for additional context. Write out every key formula relevant to lanthanoids: electronic configuration; oxidation states; lanthanoid contraction and its consequences, understand each term's SI unit and physical meaning, then solve NEET PYQs filtered to this sub-topic. Students who understand the derivation rather than just the formula handle unfamiliar numerical setups far more confidently.
5. Actinoids: electronic configuration; oxidation states; comparison with lanthanoids
Actinoids: electronic configuration; oxidation states; comparison with lanthanoids is an integral part of the d- and f-Block Elements chapter in NEET Chemistry. This sub-topic is explicitly listed in the NTA-prescribed NEET syllabus, making it fully examinable in every NEET session. NTA regularly frames questions on actinoids: electronic configuration; oxidation states; comparison with lanthanoids as concept-application MCQs — testing whether students can apply principles in unfamiliar scenarios rather than simply recall definitions.
Questions on actinoids: electronic configuration; oxidation states; comparison with lanthanoids in NEET typically test one of three types: (1) Direct definition or law statement recall; (2) Numerical application — solving a problem using the relevant formula; (3) Concept boundary — identifying when a principle applies vs when it breaks down. Students who have practised 10–15 NEET PYQs specifically on actinoids: electronic configuration; oxidation states; comparison with lanthanoids will recognise which type is being tested within seconds of reading the question.
To master actinoids: electronic configuration; oxidation states; comparison with lanthanoids for NEET 2026: Begin with NCERT Chemistry, then use your reference book for additional context. Write out every key formula relevant to actinoids: electronic configuration; oxidation states; comparison with lanthanoids, understand each term's SI unit and physical meaning, then solve NEET PYQs filtered to this sub-topic. Students who understand the derivation rather than just the formula handle unfamiliar numerical setups far more confidently.
Key Formulas for d- and f-Block Elements — NEET 2026
These 5 formulas are the most frequently tested in NEET from d- and f-Block Elements. Memorise each formula, understand what every symbol represents, and practise applying each one in 10+ different NEET-style problem contexts.
This formula from d- and f-Block Elements is among the 5 most-tested in NEET Chemistry. Memorise it, understand its derivation conceptually, and practise applying it to at least 10 different NEET-style problems. Focus on: the exact form (sign conventions, constants), SI units of each variable, and conditions for validity vs breakdown.
This formula from d- and f-Block Elements is among the 5 most-tested in NEET Chemistry. Memorise it, understand its derivation conceptually, and practise applying it to at least 10 different NEET-style problems. Focus on: the exact form (sign conventions, constants), SI units of each variable, and conditions for validity vs breakdown.
This formula from d- and f-Block Elements is among the 5 most-tested in NEET Chemistry. Memorise it, understand its derivation conceptually, and practise applying it to at least 10 different NEET-style problems. Focus on: the exact form (sign conventions, constants), SI units of each variable, and conditions for validity vs breakdown.
This formula from d- and f-Block Elements is among the 5 most-tested in NEET Chemistry. Memorise it, understand its derivation conceptually, and practise applying it to at least 10 different NEET-style problems. Focus on: the exact form (sign conventions, constants), SI units of each variable, and conditions for validity vs breakdown.
This formula from d- and f-Block Elements is among the 5 most-tested in NEET Chemistry. Memorise it, understand its derivation conceptually, and practise applying it to at least 10 different NEET-style problems. Focus on: the exact form (sign conventions, constants), SI units of each variable, and conditions for validity vs breakdown.
For d- and f-Block Elements, the most effective formula memorisation technique is active recall: write out all 5 formulas from memory every morning for 7 consecutive days. On Day 1, you may forget 2–3 formulas. By Day 7, you will recall all of them under exam pressure. Pair this with solving 2–3 problems per formula daily to build application speed alongside recall.
NEET Analysis — d- and f-Block Elements (2019–2024 Data)
Analysis of NEET papers from 2019 to 2024 shows that d- and f-Block Elements has appeared consistently in every NEET session. With an average of 3 question(s) per paper, this chapter contributes 12 marks assuming perfect accuracy. In a competitive exam where the difference between MBBS and BDS cutoffs can be just 10–20 marks, every question from d- and f-Block Elements is critical.
The question pattern for d- and f-Block Elements in NEET has remained relatively stable across years. NEET Chemistry questions from d- and f-Block Elements test a mix of concept application and numerical problem-solving. Multi-step problems that combine d- and f-Block Elements with adjacent chapters appear approximately once every 2–3 years in high-weightage chapters.
The Medium difficulty classification for d- and f-Block Elements means that approximately 40–60% of NEET students answer questions from this chapter correctly. Systematic preparation gives you a significant advantage over roughly half your competition.
For NEET 2026, the recommended strategy for d- and f-Block Elements is: master NCERT first, then solve 60–80 PYQs from this chapter on HenceProve, then take chapter-specific mock tests to confirm exam-condition accuracy.
Year-wise Question Pattern — d- and f-Block Elements in NEET
| Year | Questions | Marks | Most Tested Sub-topic |
|---|---|---|---|
| 2024 | 3–4 | 12–16 | General introduction; electronic configuration; occurrence and characteristics of transition metals |
| 2023 | 3–4 | 12–16 | General trends in properties of the first-row transition metals: metallic character; ionisation enthalpy; oxidation states; ionic radii; colour; catalytic property; magnetic properties; interstitial compounds; alloy formation |
| 2022 | 3–4 | 12–16 | Preparation and properties of K₂Cr₂O₇ and KMnO₄ |
| 2021 | 3–4 | 12–16 | Lanthanoids: electronic configuration; oxidation states; lanthanoid contraction and its consequences |
| 2020 | 3–4 | 12–16 | Actinoids: electronic configuration; oxidation states; comparison with lanthanoids |
| 2019 | 3–4 | 12–16 | General introduction; electronic configuration; occurrence and characteristics of transition metals |
The table above shows approximate question counts from d- and f-Block Elements across NEET sessions 2019–2024. NTA rotates sub-topic emphasis deliberately — topics that appeared less in 2022–2023 often reappear in 2024–2025. This confirms that all 5 official NTA topics for d- and f-Block Elements must be prepared — selective skipping is high-risk.
5 Common Mistakes in d- and f-Block Elements — NEET 2026
Many NEET Chemistry aspirants skip NCERT for d- and f-Block Elements and jump straight to reference books. This is a critical error — NTA frames NEET questions based on NCERT-level understanding. Students who haven't read NCERT carefully fall for plausible-but-wrong MCQ options that exploit subtle conceptual gaps. Read NCERT first, completely, before any reference book.
Memorising the 5 key formulas from d- and f-Block Elements is necessary but insufficient. NEET frequently asks "under what conditions does this formula apply?" and tests limiting cases. Students who understand derivations can handle these confidently without having memorised every specific edge case. Spend time understanding each formula's derivation.
NEET PYQs are the most reliable indicator of NTA's exact question format for d- and f-Block Elements. Students who skip PYQs and only read theory discover — in the actual exam — that their understanding is correct but their answer format or option identification is wrong. Solve all available NEET PYQs from d- and f-Block Elements on HenceProve's chapter-wise test mode. Analyse every wrong answer carefully — understand the exact NCERT fact or formula you missed.
A significant fraction of wrong answers in d- and f-Block Elements come from unit conversion errors and numerical precision mistakes — not conceptual misunderstanding. Before solving any NEET numerical from d- and f-Block Elements, list all given quantities with SI units, convert everything consistently, then substitute into the formula. Prevent these preventable errors.
NEET aspirants sometimes focus only on the 2–3 most frequently tested sub-topics within d- and f-Block Elements and skip others. This creates blind spots that NTA exploits in papers where emphasis shifts. All 5 official sub-topics have appeared in NEET at some point between 2019 and 2024. The sub-topic that "never appears" typically appears the year you skip it. Comprehensive preparation — all 5 topics — eliminates this risk entirely.
How to Prepare d- and f-Block Elements for NEET 2026 — 4-Step Strategy
Start with NCERT Chemistry — read the d- and f-Block Elements chapter completely. Not skimming, not just solved examples — every paragraph, theorem, and statement. NCERT for Chemistry is designed to match NTA's expected knowledge level. After NCERT, read the corresponding chapter in your reference book (HC Verma for Physics / O.P. Tandon for Chemistry) to reinforce with additional solved examples.
Create a dedicated formula sheet for d- and f-Block Elements with all 5 key formulas. For each formula: (a) Write in standard form, (b) Define every symbol with SI unit, (c) Understand derivation conceptually, (d) Write conditions for validity, (e) Write one example problem. Test yourself daily by writing all formulas from memory. By end of Week 2, achieve instant recall of all 5 formulas.
With foundation established, solve all NEET PYQs from d- and f-Block Elements — access them on HenceProve's chapter-wise test platform. Target 60–80 PYQs minimum. For every wrong answer: (a) Identify the exact error — conceptual gap, formula error, or arithmetic mistake, (b) Review the relevant NCERT section or formula, (c) Solve 2–3 similar problems to reinforce. Track accuracy by sub-topic to identify which of the 5 official topics needs more attention. Achieve 85%+ PYQ accuracy before moving to mock tests.
Take chapter-specific NEET mock tests for d- and f-Block Elements on HenceProve. A 20–25 minute timed mock reveals weaknesses that PYQ practice alone doesn't expose — particularly exam-condition accuracy and time management. After each mock test: (a) Analyse every wrong or uncertain answer, (b) Update revision notes with gaps found, (c) Re-read NCERT sections for persistent mistakes. Repeat mock test + revision every 2 weeks. In the final 4 weeks before NEET, revise your d- and f-Block Elements notes and formula sheet every 3–4 days to maintain retention.
Best Books for d- and f-Block Elements — NEET 2026
The most effective study materials for d- and f-Block Elements in NEET Chemistry, with specific usage guidance for each.
Non-negotiable for NEET Chemistry. 70–80% of NEET Chemistry questions are directly NCERT-based. Read every sentence, every reaction equation, every margin note.
For d- and f-Block Elements: Read this chapter first — it is your primary conceptual foundation before any PYQ practice.
Best for numerical Chemistry sub-topics — solutions, electrochemistry, kinetics, thermodynamics. Problem sets are calibrated precisely for NEET difficulty level.
For d- and f-Block Elements: Use after completing the primary book to build problem-solving speed and accuracy across diverse question types.
Comprehensive organic chemistry coverage. Clear mechanisms and reaction summaries aligned with NTA NEET expectations. Supplement NCERT for mechanism-heavy chapters.
For d- and f-Block Elements: Reference for advanced question types or when the primary book explanation is insufficient for this chapter.
Best inorganic reference for NEET. Chapter-wise PYQs and graded MCQs for p-Block, d&f-Block, Coordination Compounds — all high-weightage NEET topics.
For d- and f-Block Elements: Quick revision reference for key points and formula recall before the exam.
For NEET, NCERT is the foundation — especially for Biology. Do not replace NCERT with reference books. For d- and f-Block Elements, follow this order: NCERT → PYQ practice on HenceProve → Reference book chapter → Mock tests. Use reference books only to fill specific gaps identified during PYQ practice — not as a primary reading source.
Myths vs Facts — d- and f-Block Elements in NEET
Clearing up common misconceptions about d- and f-Block Elements to help you prepare more efficiently for NEET 2026.