Differential Equation & Matrices–Shanti Narayan, Engineering Mathematics–B.S. Grewal, Physical Chemistry–Puri, Sharma, Pathania and Peter W Atkins, Stereochemistry Conformation and Mechanism-P.S. Kalsi, Organic Chemistry (Vol-II)-I. L. Finar, Inorganic Chemistry-Meissler & Tarr, Concise Inorganic Chemistry-J. D. Lee are some of the books you may consider for good preparation of IIT JAM Chemistry. For more tips and tricks to ptrepare for JAM Chemistry 2019, visit the link below:

https://university.careers360.com/articles/how-prepare-jam-chemistry

Hey.

Here is a list of a few good books topic wise for IIT JAM Chemistry 

Atomic and Molecular Structure  Theory of Gases  Physical Chemistry–Peter W. Atkins  

Physical Chemistry–Puri, Sharma, Pathania

 Basic Mathematical Concepts  Differential Equation & Matrices–Shanti Narayan

 Engineering Mathematics–B.S. Grewal

 Chemical Thermodynamics  Physical Chemistry–Thomas Engel & Phillip Reid

 Basic Physical Chemistry–Peter W. Atkins

 Adsorption  Surface Chemistry–A. Goel

 Introduction to Surface Chemistry & Catalysis–Gabor A. Somorjai

 Chemical and Phase Equilibria  Principals of Chemical Equilibrium & Phase Rule–K.G. Denbigh  Phase Rule–Gurdeep Raj

 An Introduction to Electrochemistry–Samuel Glasstone

 Electrochemistry–Philip H. Rieger

 A text book of Physical Chemistry (Vol-III)-K. L. Kapoor

 Chemical Kinetics–Keith J. Laidler

 Physical Chemistry–Thomas Engel & Phillip Reid  

A text book of Physical Chemistry (Vol-V)-K. L. Kapoor

Solid State–Peter W. Atkins  

Solid State Physics–R.K. Puri & V.K.Babbar

Basic Concepts in Organic Chemistry and Stereochemistry

Conformation and Mechanism-P.S. Kalsi

 Organic Chemistry (Vol-I)-I. L. Finar

 Heterocyclic Chemistry  Organic Chemistry (Vol-I)-I. L. Finar

 Natural Products Chemistry  Organic Chemistry (Vol-II)-I. L. Finar

  Qualitative Organic Analysis-A. I. Vogel

 Analytical Chemistry  Quantitative Inorganic Analysis-A. I. Vogel  

Chemical Bonding and Shapes of Compounds  Inorganic Chemistry-J. E. Huheey

 Inorganic Chemistry-Meissler & Tarr