Class 12 Chemistry PYQ Portal
Complete collection of Previous Year Questions (2014–2026) with mechanisms & detailed solutions. Master every chapter with focused practice.
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Physical
High Weightage
Chapter 01
Solutions
- Raoult's Law & Ideal Solutions
- Henry's Law (Solubility of Gases)
- Colligative Properties & van't Hoff Factor
- Azeotropes (Minimum & Maximum Boiling)
Physical
High Weightage
Chapter 02
Electrochemistry
- Nernst Equation & Cell Potential
- Kohlrausch's Law & Molar Conductivity
- Faraday's Laws of Electrolysis
- Galvanic Cells, Batteries & Fuel Cells
Physical
High Weightage
Chapter 03
Chemical Kinetics
- Rate of Reaction & Rate Laws
- Order & Molecularity of Reactions
- Integrated Rate Equations & Half-life
- Arrhenius Equation & Activation Energy
Inorganic
Theoretical
Chapter 04
d- and f-Block Elements
- Transition Elements Properties
- Lanthanoid Contraction & Consequences
- Magnetic & Interstitial Properties
- KMnO₄ & K₂Cr₂O₇ Reactions
Inorganic
High Weightage
Chapter 05
Coordination Compounds
- Werner's Theory & IUPAC Nomenclature
- Valence Bond Theory (VBT)
- Crystal Field Theory (CFT) & Splitting
- Isomerism in Complex Salts
Organic
Mechanisms
Chapter 06
Haloalkanes & Haloarenes
- SN1 and SN2 Mechanisms
- Finkelstein, Swarts & Sandmeyer Reactions
- Organometallic & Wurtz-Fittig Reactions
- Optical Activity & Stereochemistry
Organic
High Weightage
Chapter 07
Alcohols, Phenols & Ethers
- Hydration of Alkenes & Preparation
- Acidic Strength of Phenols
- Kolbe’s & Reimer-Tiemann Reactions
- Williamson Ether Synthesis
Organic
Max Weightage
Chapter 08
Aldehydes, Ketones & Carboxylic Acids
- Nucleophilic Addition Mechanisms
- Aldol Condensation & Cannizzaro
- Carboxylic Acid Acidity Trends
- Tollens’, Fehling’s & Iodoform Tests
Organic
Reaction Heavy
Chapter 09
Amines
- Basicity Trends (Inductive vs Solvation)
- Hoffmann Bromamide & Gabriel Synthesis
- Carbylamine & Hinsberg’s Tests
- Diazonium Salts & Azo Dye Coupling
Organic
Biochemistry
Chapter 10
Biomolecules
- Glucose Cyclic Structure & Limitations
- Reducing vs Non-Reducing Sugars
- Amino Acid Zwitterions & Peptide Bonds
- Denaturation of Proteins & DNA/RNA
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