Chapter-wise PYQs for all Class XII Chemistry chapters — Solutions, Electrochemistry, Kinetics, Coordination Compounds, Organic Chemistry, Biomolecules, and more. Includes a dedicated Organic Conversions PDF for board preparation.
Previous year questions are the single most reliable indicator of what will appear in your board exam. Chemistry PYQs are especially valuable because the CBSE question bank for Class XII Chemistry repeats specific question types year after year — the same colligative property calculations, the same IUPAC naming formats, the same name reactions. If you've solved the PYQs chapter by chapter, very little in the actual board paper will surprise you.
This folder organises PYQs from 2024 and 2025 board exams by chapter — so instead of hunting through old papers, you get all the relevant questions for each topic in one place. Here's a full breakdown of what's inside.
📥 Download Chemistry Chapter-wise PYQs
Google Drive folder containing chapter-wise PDFs for all Class XII Chemistry topics — Physical, Inorganic, and Organic Chemistry — plus a dedicated Organic Conversions PYQ file for board exam practice.
📂 Click to open Access the Folder →The folder has 11 PDFs organised by chapter number — CH 1 through CH 10 — covering the entire Class XII Chemistry syllabus, plus one standalone file dedicated entirely to Organic Conversions. Each chapter file contains questions from the 2024 and 2025 board exams, including MCQs, assertion-reason, short answer, and numerical problems — along with their answers.
Here's a quick map of what each file covers:
| File | Chapter | Key Question Focus |
|---|---|---|
| CH 1 PYQs | Solutions | Raoult's law, colligative properties, abnormal molar mass (association/dissociation), freezing point calculations |
| CH 2 PYQs | Electrochemistry | Nernst equation, Kohlrausch's law, Faraday's first law, lead storage battery, fuel cell advantages |
| CH 3 PYQs | Chemical Kinetics | Arrhenius equation, activation energy, order vs molecularity, rate law from experimental data |
| CH 4 PYQs | d and f Block Elements | Magnetic moment (Cr³⁺), balancing KMnO₄/Cr₂O₇²⁻ redox reactions, ionization enthalpy trends |
| CH 5 PYQs | Coordination Compounds | IUPAC naming, VBT hybridization, chelate effect, Crystal Field Theory, isomerism |
| CH 6 PYQs | Haloalkanes & Haloarenes | SN1/SN2 reactions, Chlorobenzene to Biphenyl, Propene to 1-iodopropane conversions |
| CH 7 PYQs | Alcohols, Phenols & Ethers | Williamson synthesis, Reimer-Tiemann reaction, acid strength comparison, chemical tests |
| CH 8 PYQs | Aldehydes, Ketones & Carboxylic Acids | Ethanal to But-2-enal, Propanoic acid to Ethane conversions, product identification |
| CH 9 PYQs | Amines | Basicity order, Hoffmann's bromamide, Sandmeyer reaction, chemical tests for primary/secondary/tertiary amines |
| CH 10 PYQs | Biomolecules | Glucose structure, reducing sugars, protein denaturation, peptide linkage, vitamin deficiency diseases |
| Conversion PYQ | Organic Conversions (All chapters) | Dedicated file — all board-level organic conversion questions from 2024 & 2025 in one place |
Based on the content across all 11 files, these are the chapters where PYQ practice will give you the highest return:
The PYQs in CH 1, CH 2, and CH 3 reveal a clear pattern for Physical Chemistry numericals in board exams. Solutions questions almost always give you concentration data and ask for a colligative property — or vice versa. Electrochemistry questions pair the Nernst equation with a given standard cell potential and ask you to calculate EMF at non-standard conditions. Kinetics questions give you either half-life or rate constant data and ask you to find the time for a given percentage of completion.
What makes these chapters reliable scoring areas: the numerical types repeat in a very narrow range. Once you've solved all the PYQs from this folder for CH 1-3, you will have practiced essentially every type of Physical Chemistry numerical the board is likely to set.
The standalone Conversion PYQ.pdf is worth treating as a separate revision resource. Organic conversions in board exams test your ability to chain multiple reactions together — for example, converting Chlorobenzene to Biphenyl, or Ethanal to But-2-enal. These require you to know not just individual reactions but how to sequence them correctly.
A practical approach: go through the Conversion PYQ file and for every conversion you cannot do from memory, trace it back to the relevant chapter PYQ file. CH 6 will show you the haloalkane step, CH 8 the aldehyde step, and so on. This cross-referencing is how you build the connected understanding that board conversion questions demand.
If you're using this folder as part of your final revision, here's a sequence that works well: Start with CH 1, 2, and 3 (Physical Chemistry) to build momentum with calculation-based questions. Then move to CH 4 and 5 (Inorganic) for the definition and theory-heavy topics. Finally, spend the longest time on CH 6 through 10 (Organic) — and treat the Conversion PYQ file as a daily practice set in the week before your exam.
The fact that this folder covers both 2024 and 2025 board questions means you have two full years of actual exam data in one place. That's the closest thing to a guaranteed preparation resource that exists for Chemistry boards.
Share this with classmates preparing for Chemistry boards. More resources — KVS pre-board papers, subject-wise breakdowns — are available on this site.
Best of luck with your boards. You've got this.
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