Loading…
Loading…
Build a NEET Chemistry test from any of the 20 units — physical, inorganic or organic — as a full 45-question section, a short check after a chapter, or a paper weighted towards the units you keep getting wrong. Chemistry is the NEET section where NCERT lines decide most questions, which makes it the most improvable in a few weeks.
Free · no sign-up · updated October 2026
Your paper
Press Generate paper plan for a chapter-by-chapter blueprint: questions per chapter, numericals, marks and time — ready to print and fill from your PYQs, modules or the BrainStride question bank.
Every chapter in the NEET Chemistry syllabus, heaviest first. The share column is what a 45-question test gives each chapter in exam-weightage mode, before rounding.
| Chapter | Class | Questions per paper | Share of the subject | The mistake it catches |
|---|---|---|---|---|
| Chemical Bonding and Molecular Structure | 11 | 3–5 | 8% | Counting lone pairs, then ignoring them when naming the shape. |
| p-Block Elements | 11–12 | 3–5 | 8% | Learning a reaction without its conditions, so the product is right and the reagent wrong. |
| Organic Compounds Containing Oxygen | 12 | 3–5 | 8% | Using a named reaction that needs an aldehyde with no α-hydrogen on one that has them. |
| Co-ordination Compounds | 12 | 2–4 | 6% | Reading coordination number off the formula without counting bidentate ligands twice. |
| Atomic Structure | 11 | 2–3 | 5% | Applying Bohr model formulas to multi-electron atoms. |
| Equilibrium | 11 | 2–3 | 5% | Using concentrations where Kp needs partial pressures. |
| Redox Reactions and Electrochemistry | 11–12 | 2–3 | 5% | Dropping n from the Nernst equation, or balancing a half-reaction in the wrong medium. |
| Some Basic Principles of Organic Chemistry | 11 | 2–3 | 5% | Ranking stability on inductive effect alone and ignoring resonance. |
| Hydrocarbons | 11 | 2–3 | 5% | Applying Markovnikov addition when a peroxide is in the question. |
| Biomolecules | 12 | 2–3 | 5% | Blurring the NCERT classification of carbohydrates, proteins and vitamins. |
| Chemical Thermodynamics | 11 | 1–3 | 4% | Reversing the sign of ΔH for a reversed reaction but not scaling it when multiplied. |
| Solutions | 12 | 1–3 | 4% | Leaving out the van ’t Hoff factor for electrolytes in colligative property sums. |
| Classification of Elements and Periodicity in Properties | 11 | 1–3 | 4% | Quoting the general trend when the question is built on the exception. |
| d- and f-Block Elements | 12 | 1–3 | 4% | Comparing 4d and 5d radii without the lanthanoid contraction. |
| Organic Compounds Containing Halogens | 12 | 1–3 | 4% | Choosing SN1 or SN2 from the substrate alone, ignoring the solvent. |
| Organic Compounds Containing Nitrogen | 12 | 1–3 | 4% | Ordering amine basicity in water as though it were the gas phase. |
| Some Basic Concepts in Chemistry | 11 | 1–2 | 3% | Swapping molarity and molality when the solvent mass changes. |
| Chemical Kinetics | 12 | 1–2 | 3% | Using the first-order half-life formula for a reaction that is not first order. |
| Purification and Characterisation of Organic Compounds | 11 | 1–2 | 3% | Matching a separation technique to the wrong kind of impurity. |
| Principles Related to Practical Chemistry | 11–12 | 1–2 | 3% | Forgetting the confirmatory test that separates two ions in the same group. |
Chapter weights are BrainStride’s reading of past papers, not official data — NTA publishes no chapter weightage. Ranges overlap, so they do not add up exactly to the subject total.
The same 45-question paper twice: once weighted like the exam, once with p-Block Elements and Some Basic Principles of Organic Chemistry marked weak. Only the rows that change are shown.
| Chapter | Exam weightage | Weak-chapter mode | Change |
|---|---|---|---|
| Some Basic Concepts in Chemistry | 2 | 1 | -1 |
| Chemical Bonding and Molecular Structure | 4 | 3 | -1 |
| Chemical Kinetics | 2 | 1 | -1 |
| p-Block Elements | 4 | 8 | +4 |
| Co-ordination Compounds | 3 | 2 | -1 |
| Some Basic Principles of Organic Chemistry | 2 | 5 | +3 |
| Organic Compounds Containing Halogens | 2 | 1 | -1 |
| Organic Compounds Containing Oxygen | 4 | 3 | -1 |
| Organic Compounds Containing Nitrogen | 2 | 1 | -1 |
Marked chapters get 2.5× their usual share; the questions come from the chapters the paper would otherwise give the most to.
NEET Chemistry rewards the student who knows the NCERT text precisely. Inorganic questions are often a single line from the book; organic questions test whether you recognise a reaction out of context; physical questions are short calculations done against the clock.
Test the three branches differently. Inorganic chemistry — p-Block, d- and f-Block, Co-ordination Compounds, Periodicity — is recall: test it often, in short bursts, from NCERT-based questions. Organic chemistry is recognition: mix the organic units in one test, because the paper never says which reaction it is about. Physical chemistry is speed: time it.
Bonding, p-Block and the oxygen compounds lead. In our reading of recent papers, Chemical Bonding, p-Block Elements and Alcohols, Phenols, Aldehydes, Ketones and Carboxylic Acids recur most, and a full test gives Chemical Bonding and Molecular Structure, p-Block Elements and Organic Compounds Containing Oxygen 4 questions each.
Check the NCERT version. The rationalised NCERT books changed some Chemistry chapters, and NEET follows the NMC syllabus rather than the book. If a generated test includes a chapter your textbook dropped, check the NEET syllabus before skipping it.
The per-unit ranges behind the generator come from our NEET Chemistry page; the Organic Chemistry basics chapter guide covers the foundation every organic question builds on.
A weekly cycle
Ten questions, equal weighting, only the chapters you finished last week. It tells you whether they stuck.
Concept gaps go back to the textbook; silly errors get accuracy drills on the same chapter; slow solves get timed sets.
Mark the two chapters that cost you most and build a 45-question paper. They get two and a half times their usual share.
A realistic subject paper, scored with +4 / −1, to check the fixes show up when the weighting is fair.
Forty-five of the 180 questions, worth 180 of the 720 marks, all compulsory since 2025 with +4 for a correct answer and −1 for a wrong one. At the paper's overall pace a full Chemistry section takes about 45 minutes, which leaves room only if inorganic recall is fast.
In BrainStride’s reading of recent papers, Chemical Bonding and Molecular Structure, p-Block Elements and Organic Compounds Containing Oxygen get the most questions in a full test, followed by Co-ordination Compounds and the physical chapters. NTA publishes no chapter weightage, so these are estimates given as ranges.
For inorganic chemistry, almost entirely: NEET questions there follow NCERT lines closely. For physical and organic chemistry, NCERT examples and previous-year questions first, then other sources for practice volume, checking any answer key you cannot verify yourself.
Not in the sense of writing questions. The generator is a rule-based planner: it reads the exam pattern and BrainStride’s chapter weights from past papers and decides how many questions each chapter gets, so the result is the same every time for the same settings. The AI part of BrainStride is the tutor, which picks your next practice questions from a teacher-checked bank based on the mistakes you have made.
No. The paper plan is built in your browser, nothing is sent to a server and there is no sign-up. Print it or copy it as text if you want to keep it. The free BrainStride diagnostic is a separate, optional step if you want a plan built around your own mistakes.
Exam patterns are from the official information bulletins. Chapter weights are BrainStride estimates from past papers, not official data.
The 20-minute diagnostic names them — then every practice set and every generated test can lean on them.