NEET 2027 Chemistry: Inorganic High-Yield Topics You Cannot Afford to Skip

Why Inorganic Chemistry Gets Neglected — and Why That Is a Mistake

Most NEET students spend the majority of their Chemistry preparation on Physical Chemistry (problems and calculations) and Organic Chemistry (mechanisms and named reactions). Inorganic Chemistry gets whatever time is left — which is usually not enough.

This is a costly mistake. In NEET 2027, Inorganic Chemistry is likely to contribute 8 to 12 questions in the Chemistry section. These questions are predominantly factual, directly lifted from NCERT, and require virtually no calculation. For a student who has done thorough NCERT revision, these 10 questions are essentially free marks.

The problem is that most students have not done thorough NCERT revision of inorganic chapters.

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The Highest-Yield Inorganic Chapters

1. p-Block Elements (Groups 15, 16, 17, 18)

This is consistently the most heavily tested inorganic chapter in NEET — expect 3 to 5 questions per year. No other inorganic chapter comes close.

Key areas to master:

• Physical and chemical properties of elements and their important compounds (nitrogen oxides, phosphorus allotropes, sulphur dioxide and sulphuric acid, halogens and their compounds)
• Anomalous behaviour of the first element in each group compared to the rest (nitrogen vs phosphorus, oxygen vs sulphur, fluorine vs other halogens)
• Trends in oxidation states, atomic radii, and electronegativity across groups
• Important reactions to know by heart: disproportionation of chlorine, reaction of fluorine with water, properties of interhalogen compounds, uses of noble gases

NCERT tip: Every reaction mentioned in the p-Block chapters has appeared in NEET at some point in the past decade. Read the reaction descriptions — do not just skim the headings.

2. Coordination Compounds

Expect 2 questions per year from this chapter. The question types are predictable:

• IUPAC naming of coordination compounds (including the sequence for naming ligands)
• Hybridisation and geometry: square planar vs tetrahedral vs octahedral
• Crystal Field Theory: high spin vs low spin complexes, CFSE for different geometries
• Colour and magnetic properties of complexes and their connection to electronic configuration
• Stability and applications of specific complexes (cisplatin, haemoglobin, chlorophyll)

Study the standard coordination compound examples from NCERT carefully — [Co(NH3)6]3+, [Fe(CN)6]4-, [Ni(CO)4], and [Cu(NH3)4]2+ — because questions regularly use these specific complexes rather than invented ones.

3. d-Block and f-Block Elements

Expect 1 to 2 questions. The testable content is more specific than it appears:

• Variable oxidation states of transition metals and the most stable state for each (Mn most stable at +2 and +7, Fe at +2 and +3, Cu at +1 and +2, Cr at +3 and +6)
• Magnetic properties from electronic configuration — number of unpaired electrons
• Lanthanoid contraction: definition, cause (poor shielding by f-electrons), and consequences for properties of elements following the lanthanoids
• Oxidising reactions of KMnO4 and K2Cr2O7 in acidic medium — the balanced equations are directly asked

4. Hydrogen and s-Block Elements

Expect 2 to 3 questions combined across these chapters. Frequently tested content:

• Anomalous behaviour of lithium (resembles magnesium — diagonal relationship) and beryllium (resembles aluminium)
• Reactions of alkali and alkaline earth metals with water, oxygen, and halogens
• Hard water: types (temporary vs permanent), methods of softening (Clark's method, permutit process, ion exchange resin)
• Biological importance of Na, K, Ca, Mg — this appears more often than students expect
• Plaster of Paris vs gypsum: chemical formulae and the reaction between them

5. Qualitative Analysis (Salt Analysis)

This contributes approximately 1 question per year — and those marks are available to anyone who spends two hours memorising the right information.

Key tests to know:

• Cation identification: NH4+ (Nessler's reagent), Fe3+ (thiocyanate turns blood red), Cu2+ (deep blue with excess ammonia), Pb2+ (yellow precipitate with K2CrO4)
• Anion identification: CO32- (brisk effervescence with dilute acid), SO42- (white precipitate with BaCl2 insoluble in HCl), Cl- (white curdy precipitate with AgNO3 soluble in ammonia), NO3- (brown ring test)

Make a two-column table with cation/anion on the left and identification test plus observation on the right. Two hours of focused memorisation is all this topic requires.

6. Environmental Chemistry

Expect 1 to 2 questions, usually straightforward:

• Primary vs secondary pollutants (photochemical smog is a secondary pollutant)
• Ozone depletion: role of CFCs, mechanism, Montreal Protocol
• Acid rain: causes (SOx and NOx from combustion), effects on ecosystems and limestone buildings
• Greenhouse gases and their relative contribution to global warming
• Water pollution: Biochemical Oxygen Demand (BOD) definition, effects of heavy metals

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How to Study Inorganic Efficiently

Step 1: Read NCERT Thoroughly — Once

Read every inorganic chapter in NCERT Chemistry Part 1 and Part 2 without skipping any tables, reaction descriptions, or uses of compounds. The NCERT table listing uses of noble gases has directly produced NEET questions. The paragraph describing the anomalous behaviour of fluorine has directly produced NEET questions.

Read everything. Underline the specific properties, reactions, and contrasts that are mentioned explicitly.

Step 2: Build a Reaction and Property Sheet per Chapter

After reading each chapter, create a one-page summary containing:

• Key reactions (write the balanced chemical equation — not a verbal description)
• Anomalous properties and the reason for each anomaly
• Applications and biological roles of important compounds

This sheet becomes your active revision tool.

Step 3: Solve Previous Year Questions Chapter by Chapter

Gather the last 10 years of NEET questions and solve them chapter by chapter rather than year by year. This reveals which specific facts and reactions are tested repeatedly. Inorganic Chemistry questions in NEET recycle more than any other section — what appeared in 2019 in slightly different wording often appears again in 2023.

Step 4: Use Active Recall for Revision

After building your summary sheets, close them and try to recall every reaction, property, and application from memory. Check against the sheet, note what you missed, and repeat the exercise every two weeks.

ExamBattle's NEET Chemistry quizzes are tagged by chapter — use the Inorganic section specifically for rapid recall testing between your main revision sessions.

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The Marks Calculation

In a typical NEET paper, approximately 10 questions in Chemistry come from Inorganic chapters. At 4 marks per correct answer, that is 40 marks — roughly 5.5% of the total NEET score.

For students scoring around 500 (competitive but below government medical college cutoffs), improving Inorganic Chemistry performance from 40% to 80% accuracy adds 16 marks. That improvement, combined with similar gains in NEET Biology through NCERT revision, is often the difference between a rank in the top 20,000 and the top 10,000.

Do not leave these marks on the table.