Hai there!
These were the important topics for jee preparation
Physics
Electrodynamics
Mechanics
Modern Physics
Heat & Thermodynamics
SHM & Waves
Optics

Mathematics
Differential Calculus
Integral Calculus
Coordinate Geometry
Co-ordinate Geometry (3-D)
Matrix & Determinants
Probability
Matrix & Determinants
Trigonometry

Chemistry
Organic Chemistry-II [Alkyl Hallide, Alcohol & Ether (Reaction Mechanism),Aromatic Compounds, Biomolecules,Carbohydrates, Amino Acids and
Polymers, Carbonyl Compounds, Environmental chemistry, Grignard Reagent, Reduction, Oxidation& Hydrolysis]
Physical Chemistry-I [Atomic Structure & Nuclear Chemistry,Ionic Equilibrium, Mole Concept,Thermodynamics and Thermochemistry]
Physical Chemistry-II [Chemical Kinetics,Electrochemistry,Solid State,Solution & Colligative Properties,Surface Chemistry]
Inorganic Chemistry-I [Chemical Bonding,Periodic Table & Periodicity in Properties,S-Block

Thank you!

Very important are
Straight lines
Chemical kinetics
Heat and thermodynamics
Electrochemistry
Ray optics
3 D geometry

The following are the most important chapters (high weightage, low effort) for JEE Main:

Important Chapters For Physics

1. Wave Optics
2. Heat and Thermodynamics
3. Electromagnetic Waves
4. Semiconductors
5. Ray Optics
6. Gravitation
7. Photoelectric Effect
8. Oscillations

Important Chapters For Chemistry

1. Atomic Structure
2. Electrochemistry
3. Nuclear and Surface Chemistry
4. d-Block Elements
5. Alkyl Halides
6. Aromatic Compounds
7. Gaseous and Liquid States
8. Chemical Kinetics
9. Chemical Bonding
10. Coordination Compounds

Important Chapters For Mathematics

1. Vectors
2. 3-Dimensional Geometry
3. Sequence and Series
4. Determinants and Matrices
5. Straight Lines
6. Circle
7. Probability Distribution

 

 

All the very best and good luck.

Hello,
The important topics are as follows:

• Important Topics For JEE Main Chemistry:

p Block Elements
Coordination Compounds
Biomolecules and Polymers
d and f Block elements
Chemical Bonding and Molecular Structure
s Block elements ( Alkali and Alkaline earth Metals) and Hydrogen
Electrochemistry
Chemical Kinetics
Atomic Structure
Alkanes, Alkenes and Alkynes ( Hydrocarbons)

• Important Topics For JEE Main Physics:

Properties of Matter and Fluid Mechanics
Electrostatics
Semiconductors and Communication System
Electromagnetic Induction and Alternating Current
Ray Optics
Magnetic Effects of Current
Laws of Thermodynamics
Current Electricity
Atomic Structure in Modern Physics

• Important Topics For JEE Main Maths:

Trigonometrical Ratios, Functions  and Identities
Sequences and Series (Progressions)
Vector
Permutation and Combination
Statistics
Parabola
Definite Integration
Circle
Indefinite Integration
Binomial Theorem
Quadratic Equations

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