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Study Notes

Class 11 & 12 Notes — written for boards and entrance exams, chapter by chapter.

Chapter-wise Class 11 and 12 physics, chemistry, maths and biology notes from Narayan Gurukul Academy, Mohali — real formulas rendered properly, exam pointers, and worked numericals for CBSE, JEE and NEET. All notes are free to read and download, no signup required. New chapters are added regularly.

Latest chapters

206 notes

Showing 193–206 of 206. Free to read and download — updated with new chapters every few weeks.

BiologyClass 12

Molecular Basis of Inheritance Class 12 Notes

Molecular basis of inheritance class 12 notes: DNA structure, replication, transcription, genetic code, translation, lac operon, Human Genome Project and DNA fingerprinting for CBSE and NEET.

CBSE Class 12 · NEET
BiologyClass 12

Principles of Inheritance and Variation Class 12 Notes

Principles of inheritance and variation class 12 notes: Mendel's laws, crosses, chromosomal disorders, pedigree analysis, sex-linked traits and genetic variations for CBSE and NEET.

CBSE Class 12 · NEET
BiologyClass 12

Reproductive Health Class 12 Notes

Reproductive health class 12 notes: contraception methods, STDs, infertility, ART techniques, MTP legality, and population stabilization for CBSE and NEET.

CBSE Class 12 · NEET
BiologyClass 12

Human Reproduction Class 12 Notes

Human reproduction class 12 notes: male and female reproductive systems, spermatogenesis, oogenesis, menstrual cycle, fertilization, implantation, placenta and parturition for CBSE and NEET.

CBSE Class 12 · NEET
BiologyClass 12

Sexual Reproduction in Flowering Plants Class 12 Notes

Sexual reproduction in flowering plants class 12 notes: flower structure, microsporogenesis, megasporogenesis, pollination, double fertilization, embryo development and apomixis for CBSE and NEET.

CBSE Class 12 · NEET
ChemistryClass 11

Environmental Chemistry Class 11 Notes

Class 11 Chemistry Environmental Chemistry notes: air and water pollution, greenhouse gases and global warming, ozone layer and ozone depletion, smog, acid rain, green chemistry — for CBSE, JEE and NEET.

CBSE Class 11 · JEE Main & Advanced · NEET
ChemistryClass 11

p-Block Elements Class 11 Notes

Class 11 Chemistry p-Block Elements notes: Groups 13 to 18, boron family trends, the inert pair effect, boron and its compounds, carbon family, allotropes, silicates and silicones — for CBSE, JEE and NEET.

CBSE Class 11 · JEE Main & Advanced · NEET
ChemistryClass 11

s-Block Elements Class 11 Notes

Class 11 Chemistry s-Block Elements notes: alkali and alkaline earth metals, their trends and reactions, anomalous behaviour of lithium and beryllium, important compounds, plaster of Paris and cement — for CBSE, JEE and NEET.

CBSE Class 11 · JEE Main & Advanced · NEET
ChemistryClass 11

Hydrogen Class 11 Notes

Class 11 Chemistry Hydrogen notes: isotopes, the position of hydrogen in the periodic table, preparation and properties, hydrides and their types, hydrogen peroxide, heavy water, dihydrogen uses — for CBSE, JEE and NEET.

CBSE Class 11 · JEE Main & Advanced · NEET
ChemistryClass 11

States of Matter Class 11 Notes

Class 11 Chemistry States of Matter notes: gas laws, ideal gas equation, Dalton's law of partial pressures, kinetic molecular theory, ideal vs real gases, van der Waals equation, liquids and their properties — for CBSE, JEE and NEET.

CBSE Class 11 · JEE Main & Advanced · NEET
ChemistryClass 12

Chemical Kinetics Class 12 Notes

Class 12 Chemistry Chemical Kinetics notes: rate law, order and molecularity, first-order reactions, half-life and the Arrhenius equation — with key formulas and solved JEE/NEET examples.

CBSE Class 12 · JEE Main & Advanced · NEET
ChemistryClass 12

Electrochemistry Class 12 Notes

Class 12 Chemistry Electrochemistry notes: galvanic and electrolytic cells, electrode potentials, Nernst equation, conductance and electrolysis — with key formulas and solved JEE/NEET examples.

CBSE Class 12 · JEE Main & Advanced · NEET
ChemistryClass 12

Inorganic Chemistry Class 12 Notes

Class 12 Inorganic Chemistry notes: p-block and d-block elements, coordination compounds, crystal field theory and qualitative analysis — with key facts and solved JEE/NEET examples.

CBSE Class 12 · JEE Main & Advanced · NEET
ChemistryClass 12

Organic Chemistry Class 12 Notes

Class 12 Organic Chemistry notes: named reactions, IUPAC nomenclature, haloalkanes, alcohols, aldehydes-ketones, carboxylic acids and amines — with key formulas and solved JEE/NEET examples.

CBSE Class 12 · JEE Main & Advanced · NEET

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