I will enlist below some of the important topics for chemistry for imucet -

1. Nature of chemical bonds
2. General organic chemistry
3. Polymers
4. Aromatic compounds
5. Chemical Equilibrium
6. Chemical Kinetics
7. Eletrochemistry
8. Thermodynamics
9. Haloalkanes and haloarenes
10. s,p,d,f blocks
11. Co-ordination chemistry

Refer to the site below to get some tips to crack the IMUCET entrance examination....

https://engineering.careers360.com/articles/how-crack-imu-cet-2020

Best wishes. Thank you.