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.
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206 notes
Showing 1–24 of 206. Free to read and download — updated with new chapters every few weeks.
Biomolecules Class 12 Chemistry Notes
Download free Biomolecules Class 12 PDF notes with no signup required. Complete chapter summary, key concepts, exam pointers, solved examples and mock tests.
Amines Class 12 Chemistry Notes
Download free Amines Class 12 PDF notes with no signup required. Complete chapter summary, key reactions, exam pointers, solved numericals and mock tests.
Aldehydes, Ketones and Carboxylic Acids Class 12 Chemistry Notes
Download free Aldehydes, Ketones and Carboxylic Acids Class 12 PDF notes with no signup required. Complete chapter summary, key reactions, exam pointers, solved numericals and mock tests.
Alcohols, Phenols and Ethers Class 12 Chemistry Notes
Download free Alcohols, Phenols and Ethers Class 12 PDF notes with no signup required. Complete chapter summary, key reactions, exam pointers, solved numericals and mock tests.
Haloalkanes and Haloarenes Class 12 Chemistry Notes
Download free Haloalkanes and Haloarenes Class 12 PDF notes with no signup required. Complete chapter summary, key formulas, exam pointers, solved numericals and mock tests.
Coordination Compounds Class 12 Chemistry Notes
Download free Coordination Compounds Class 12 PDF notes with no signup required. Complete chapter summary, key formulas, exam pointers, solved numericals and mock tests.
d and f Block Elements Class 12 Chemistry Notes
Download free d and f Block Elements Class 12 PDF notes with no signup required. Complete chapter summary, key formulas, exam pointers, solved numericals and mock tests.
Chemical Kinetics Class 12 Chemistry Notes
Download free Chemical Kinetics Class 12 PDF notes with no signup required. Complete chapter summary, key formulas, exam pointers, solved numericals and mock tests.
Electrochemistry Class 12 Chemistry Notes
Download free Electrochemistry Class 12 PDF notes with no signup required. Complete chapter summary, key formulas, exam pointers, solved numericals and mock tests.
Solutions Class 12 Chemistry Notes
Download free Solutions Class 12 PDF notes with no signup required. Complete chapter summary, key formulas, exam pointers, solved numericals and mock tests.
Solid State Class 12 Chemistry Notes
Download free Solid State Class 12 PDF notes with no signup required. Complete chapter summary, key formulas, exam pointers, solved numericals and mock tests.
Trigonometric Identities Class 10 Maths Notes
Trigonometric identities Class 10 Maths notes for 2024-25: the proof of sin²A + cos²A = 1 from a right triangle, its rearrangements, and how to use it to evaluate expressions and find missing ratios.
Triangles Class 10 Maths Notes
Triangles Class 10 Maths notes for the 2024-25 rationalised syllabus: similar triangles, the Basic Proportionality Theorem and its converse, and the three similarity criteria with worked examples.
Surface Areas and Volumes Class 10 Maths Notes
Surface areas and volumes Class 10 notes: CSA and TSA for cube, cuboid, sphere, hemisphere, cylinder and cone, the two-solid combinations rule, and worked numericals.
Statistics Class 10 Maths Notes
Statistics Class 10 notes for 2024-25: mean by the direct method, median from the cumulative frequency column, and mode by the empirical relation, with every symbol defined.
Some Applications of Trigonometry Class 10 Maths Notes
Heights and distances Class 10 Maths notes for 2024-25: angle of elevation and angle of depression, why they reverse, the two-triangle method, and fully worked problems solved to exact answers.
Real Numbers Class 10 Maths Notes
Real numbers Class 10 notes: rational and irrational numbers, the Fundamental Theorem of Arithmetic, and complete proofs that √2, √3 and √5 are irrational.
Quadratic Equations Class 10 Maths Notes
Quadratic equations Class 10 notes: solving ax² + bx + c = 0 by factorisation and by the quadratic formula, the discriminant and the nature of roots, and day-to-day problems.
Probability Class 10 Maths Notes
Probability Class 10 notes for 2024-25: the classical definition, P(E) as favourable over total, impossible and certain events, and worked die, coin, card and slip problems.
Polynomials Class 10 Maths Notes
Polynomials Class 10 notes: the degree of a polynomial, what a zero means on the graph, zeros of a quadratic by factorisation, and zeros versus coefficients.
Pair of Linear Equations Class 10 Maths Notes
Pair of linear equations Class 10 notes: the graphical method, consistency of a pair, the conditions for zero, one or many solutions, substitution and elimination.
Introduction to Trigonometry Class 10 Maths Notes
Introduction to trigonometry Class 10 Maths notes for 2024-25: the six ratios with the opposite, adjacent and hypotenuse convention, values at 0° and 90°, the 30-45-60 table, and how to pick a ratio.
Coordinate Geometry Class 10 Maths Notes
Coordinate geometry Class 10 Maths notes for 2024-25: graphs of linear equations, the distance formula with worked examples, and the section formula for internal division.
Circles Class 10 Maths Notes
Circle class 10 maths notes for 2024-25: what a tangent is, tangent-radius perpendicularity, equal tangents from an external point, and the standard numerical.
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