hi,

see jee main exam is a competitive exam and question pattern is mcq based, so there is really impossible to predict questions from which of the parts it will come. since  p block elements are in syllabus, then question may come. however right now if it is taking too long for you to understand then you may skip it for now and proceed to next topics. however exam is delayed, so you can revise this portion later. my suggestion is donot waste too much time in only one topics.

hope you may understand.