Hello,

Errorless a great book for beginning and developing your speed.You can solve by keeping a timer.The theory and shortcuts are also good so you can refer to that if you are comfortable.

Here are the topics for the respective subjects:

Mathematics

• Sets, relations and functions
• Complex numbers and quadratic equations
• Matrices and determinants
• Mathematical reasoning
• Mathematical induction
• Permutations and combinations
• Sequences and series
• Limit, continuity and differentiability
• Integral calculus
• Differential equations
• Binomial theorem and its simple applications
• Three-dimensional geometry
• Vector algebra
• Co-ordinate geometry
• Statistics and probability
• Trigonometry

Physics

• Physics and measurement
• Kinematics
• Thermodynamics
• Work, energy and power
• Rotational motion
• Gravitation
• Laws of motion
• Properties of solids and liquids
• Electronic devices
• Kinetic theory of gases
• Oscillations and waves
• Communication systems
• Current electricity
• Magnetic effects of current and magnetism
• Electromagnetic induction and alternating currents
• Electromagnetic waves
• Optics
• Dual nature of matter and radiation
• Electrostatics
• Atoms and nuclei
• Many more..

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 characterisation 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 more detailed information, I would suggest you to visit career360's tab where there is a detailed description of everything.

The link for the same is:https://engineering.careers360.com/articles/jee-main-syllabus

All the very best!

Firstly I would suggest you to go through well with NCERT books, It will help you to clear your basic concept then prefer the other books. The other books you can refer-
 Books for Mathematics

    Trigonometry by S. L. Loney

    Higher Algebra by Hall & Knight

    Maths XI & XII by NCERT

    Co-ordinate Geometry by S. L. Loney

    Problems in Calculus of One Variable by I.A. Maron

 Books for Physics

    Problems in General Physics by I.E. Irodov

    Fundamentals of Physics by Halliday, Resnick & Walker

    Concepts of Physics Vol I and II by H.C. Verma

 Books for Chemistry

    Organic Chemistry by Paula Bruice Yurkanis

    Organic Chemistry by Morrison & Boyd

    Inorganic Chemistry by J.D. Lee

    Numerical Chemistry by P. Bahadur

To check the syllabus of JEE Main Entrance Exam, You can go through with the given below link.

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

Good Luck!