Adding to what @Sourav_Dey sir said
It's not possible to tell each topic but having almost completed first year of B.Tech found a few good topics of F.Y. that are used quite a few times in JEE A
1.Exact differential equations (I don't know if it is in the syllabus or not)
3.Double Integral (not much useful but still has some applications in physics)
4.Rank of a matrix , eigen values (some advanced concept not only the basics)
Obviously questions can be done without knowledge of any of the above topics but if you know them it makes the questions easy .