Hello Aspirant,

See as of now the latest syllabus for JEE-Main 2021 is described below and nothing has been reduced :-

@Mathematics

Complex numbers and quadratic equations

Matrices and determinants

Sets, relations and functions

Mathematical induction

Permutations and combinations

Mathematical reasoning

Limit, continuity and differentiability

Integral calculus

Three-dimensional geometry

Differential equations

Binomial theorem and its simple applications

Sequence and Series

Vector algebra

Statistics and probability

Trigonometry

Co-ordinate geometry

@Physics

Physics and measurement

Rotational motion

Thermodynamics

Kinematics

Work, energy and power

Properties of solids and liquids

Gravitation

Laws of motion

Oscillations and waves

Electronic devices

Kinetic theory of gases

Current electricity

Communication systems

Electromagnetic induction and alternating currents

Magnetic effects of current and magnetism

Optics

Electromagnetic waves

Atoms and nuclei

Electrostatics

Dual nature of matter and radiation

+Experimental skills

@Chemistry

Physical Chemistry

Some basic concepts in chemistry

States of matter

Atomic structure

Chemical bonding and molecular structure

Chemical thermodynamics

Solutions

Equilibrium

Redox reactions and electrochemistry

Chemical kinetics

Surface chemistry

Organic Chemistry

Purification and characterization of organic compounds

Hydrocarbons

Chemistry in everyday life

Principles related to practical chemistry

Organic compounds containing halogens

Organic compounds containing oxygen

Organic compounds containing nitrogen

Polymers

Some basic principles of organic chemistry

Biomolecules

Inorganic Chemistry

Classification of elements and periodicity in properties

Hydrogen

Block elements (alkali and alkaline earth metals)

P Block elements group 13 to group 18 elements

d- and f - block elements

Co-ordination compounds

Environmental chemistry

General principles and processes of isolation of metals

For complete syllabus for JEE-Main 2021 and their PDFs along with the detailed content weightage, kindly check out the link given below :-

https://engineering.careers360.com/articles/jee-main-syllabus-weightage

I hope this information helps you.

Good Luck!!