please say what are selected topics in chemistry for scoring minimum mark ie.,over 60 or somethin in iit jee

In Organic Chemistry- 1. All the mechanisms( addition , elimination , substitution etc )

                                2. Isomerism and nomenclature

3. Hydrocarbons(alkanes, alkenes and alkynes)

4. aldehydes and ketones

In physical chem: 1. stoichiometry

 2. equilibrium

 3. electrochemistry

 4. thermodynamics

 5. solutions

In inorganic :  1. p block

     2. coordination compounds

*these are important chapters u must study them but that doesnt mean they are enough. iit jee doesnt have any pattern so anything can be asked from syllabus!