what should be my main focus while preparing for i p university exam

Dear Shubham,

You should be much precise while preparing through out, focus on objective questions rather than subjective ones.

Always make notes for the key points for the desruptive answers , and try to  focus on the following  chapters :

Mathematics:

COMPLEX NUMBERS AND QUADRATIC EQUATIONS
 BINOMIAL THEOREM AND ITS SIMPLE APPLICATIONS
 LIMIT, CONTINUITY AND DIFFERENTIABILITY
 Differential CALCULUS
Conics
 Trigonometry


Physics:
 KINEMATICS
 LAWS OF MOTION
 WORK, ENERGY AND POWER
 ROTATIONAL MOTION
  OSCILLATIONS AND WAVES
 

Chemistry:

 Chemical Bonding and Molecular Structure
 CHEMICAL THERMODYNAMICS
 SOLUTIONS
 EQUILIBRIUM
  BLOCK ELEMENTS (ALKALI AND ALKALINE EARTH METALS)
 P - BLOCK ELEMENTS: Group - 13 to Group 18 Elements
 d – and f – BLOCK ELEMENTS
 IUPAC Nomenclature of carbon compounds.



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http://www.askiitians.com/iit-study-material/

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thanks and regards

Akhilesh shukla