Now the question rises that how the organic chemistry should be prepared for NET and other tests.
In NET they are going to test your cramming as well as your understanding of equations.
Now talking of the 30% questions, there are numericals also in it. These numericals are not very difficult ones but very puzzling rather. For example the simple calculations about mole and molar mass; calculations of pH and pOH are important.
After that there are some topics which are most favorite of examiner but at the same time these are disliked by students. The topic about shell, subshells and orbitals was not very pleasing to me but the examiner chose a pretty good number of difficult questions from that.
Try to make a sketch of periodic table in your mind and also of the exceptions present in the book.
But the most important thing, whenever a question is asked about the periodic table, try to write down that particular group or period elements on the rough work page provided to you by NUST admins.