which are the most important topics in which i should be very clear for scor in iitjee

Hi

Maths:calculus, Vectors, Complex numbers, co-ordinate geometry(2D+3D) Quadratic equations.

Physics:Optics, Modern physics, Thermodynamics, A/C circuits, Fluid mechanics, Experiments.

Chemistry: Solid state, chemical bonding, Aldehydes, ketones, carboxylic acids, Alkenes,
         alkynes, stereo and geometrical isomerism, transition elements, coordiantion compounds,
         electro chemistry, kinetics and equilibrium.