Important Topics for BITSAT 2017 -

Physics  (Topic/Weightage) ----

Heat & Thermodynamics (10%)

Magnetic effect of current & magnetism (9%)

Wave Motion (6%)

Current Electricity (6%)

Electrostatics (5%)

Simple Harmonic Motion (5%)

Wave Optics (5%)

Fluids (5%)

Rotational Motion (4%)

Work, Energy, Power (4%)

Elasticity (4%)

Ray Optics (4%)

Units, Dimension, Errors (3%)

Gravitation (3%)

Alternating Current (3%)

Chemistry  (Topic/Weightage) -----

Chemical Bonding (10%)

Biomolecules (6%)

Carboxylic Acid & its derivates (6%)

Atomic Structure (6%)

p-block elements (6%)

Mole Concepts (6%)

Alkanes, Alkenes & Alkynes (5%)

Electrochemistry (5%)

Chemical Thermodynamics (5%)

Solid State (4%)

Chemical Equilibrium (4%)

General Organic Chemistry (4%)

s-block elements (4%)

Ionic Equilibrium (3%)

Chemical Kinetics (3%)

Mathematics  Topic/Weightage ------

Circles (11%)

Straight lines (7%)

Pair of straight lines (7%)

Vectors (6%)

Continuity & Differentiability (6%)

Differential Equation (4%)

Complex Numbers (4%)

Theory of Equation (4%)

Binomial Theorem (4%)

Sets, Relations & Functions (4%)

Trigonometric Equations (3%)

Properties of Triangles (3%)

Probability (3%)

Application of Derivates (3%)

Matrices Determinants (3%)

Hope this helps!!!