how many % paper come from ncert in chemistry in jee main

Hello,
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The core syllabus for JEE Main is taken from NCERT books. More than 95% of the questions are asked from NCERT. For remaining 4-5% you will need few books. Before we recommend you some best books for JEE Mains, we also have JEE preparation material https://learn.careers360.com/engineering/jee-main/

Physics best books:

Concepts of Physics Volume 1 and 2 by HC Verma

Fundamentals of Physics by Halliday, Resnick and Walker

Understanding Physics by DC Pandey

Problems in General Physics by I.E.Irodov

Understanding Physics by Freedman and Young

Problems in Physics by SS Krotov

Problems and Solution of Physics by Shashi Bhushan Tiwari

Chemistry Best Books:

NCERT textbooks for Class 11th and 12th

Modern Approach to Chemical Calculations by R.C.Mukhejee

Organic Chemistry by OP Tandon

Concept of Physical Chemistry by P Bahadur

Concise Inorganic Chemistry by J D Lee

Physical Chemistry by P.W.Atkins

Organic Chemistry by Morsison and Boyd

Mathematics Best Books:

Objective Mathematics by RD Sharma

Plane Trigonometry by SL Loney

The Elements of Coordinate Geometry by SL Loney

Algebra by Dr. SK Goyal Arihant Publications

Play with Graphs by Amit M Agarwal

Differential Claculus by Amit M Agarwal

Integral Calculus by Amit M Agarwal

Complete Mathematics for JEE Main TMH