which topics are very important for jee mains 2018.....?

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