Actually you should not think of this while studying for the first time ….

JUST ENJOY THE SUBJECT

But when you revise, it is important and you would know it after you solve jee questions (past 10 years)

PHYSICS :

Rotational motion (Rigid body dynamics)

Other topics like kinematics , SHM and fluids ,they ask 1 or 2 questions…

Newton’s law is important and enjoyable from understanding point of view ,but they don’t ask too much.

Units and Dimensions should not be ignored (11th or 12th portion)

CHEMISTRY:

CHEMICAL BONDING (most important) :need good knowledge of periodicity and atomic structure .

GOC (basic for organic chem)

EQUILIBRIUM

Atomic structure , Stoichiometry (Mole Concept and Equivalent concept) :1 question

Gaseous State : 1 good question.

MATHS:

PROBABILITY (imp) ,

Permn and Combn (1 Qsn)

Co ordinate (1 question from Circle )

BASICS (graphs,logarithm ,inequalities)

Quadratic (1 Qsn) (generally mixed with other concept)