Biology

All the chapters of XI and XII biology are equally important with more emphasis on XI biology The analysis of previous year papers has shown that the unit, 'Structural Organisation in Plants and Animals' in Grade XI contributes to the maximum number of questions. In Grade XII, the units 'Biology for human welfare' and 'Ecology' are important. The given table illustrates the unit-wise allocation of questions in past 3 years.

Grade XI
Unit Name 2010 2011 2012
Unit 1 Diversity in the Living World 11 12 19
Unit 2 Structural Organisation in plants and animals 10 12 15
Unit 3 Cell: Structure and Function 5 7 10
Unit 4 Plant Physiology 11 11 4
Unit 5 Human Physiology 10 12 15
Grade XII
Unit Name 2010 2011 2012
Unit 1 Reproduction 14 10 8
Unit 2 Genetics and Evolution 10 6 10
Unit 3 Biology in Human Welfare 13 17 14
Unit 4 Biotechnology 5 5 6
Unit 5 Ecology 9 12 9

Physics

  • All the chapters of XI and XII are equally important.
  • The analysis of previous year papers has shown that the chapters of mechanics and electronics are immensely important.
  • The given table illustrates the unit-wise allocation of questions in past 3 years.
Class XI
Chapters 2010 2011 2012
Physical World      
Units and Measurements   1 1
Motion in a straight line 2 1 2
Motion in a plane 3 3 1
Laws of motion 9 12 9
Work, Energy and Power 2 3 2
Systems of particles and rotational motion 2 3 3
Gravitation 1 2 2
Mechanical Properties of solid      
Mechanical properties of fluids      
Thermal properties of matter 2 1 2
Thermodynamics 2 2 1
Kinetic theory      
Oscillations 2 2 1
Waves 2 2 2
Class XII
Electric charges and field 3 1 2
Electrostatic potential and capacitance 1 1 1
Current Electricity 4 2 4
Moving Charges and Magnetism 3 1 2
Magnetism and matter 2 1 1
Electromagnetism Induction 1 1 1
Alternating Current 2 2 2
Electromagnetic Waves 1 1 2
Ray optics & Optical instrument 2 2 4
Wave optics      
Dual nature of radiation and matter 1 5 3
Atoms 1 1 2
Nuclei 2 5 2
Semiconductor 3 3 3
electronics      
Communication systems      

Chemistry

  • The chapters of XI and XII are equally important.
  • The chapters which are the most important are:
    Inorganic chemistry: p-block elements, d and f-block elements, coordination compounds
    Organic chemistry: IUPAC nomenclature, oxygen and nitrogen containing compounds
    Physical chemistry: Solutions, Electrochemistry, States of Matter, Equilibrium, Chemical Kinetics
  • The table given below shows the chapter-wise allocation of questions in the past 3 years.
Class XI
Chapters 2012 2011 2010
Some Basic Concepts of Chemistry (*)     1
Structure of atom (*) 4 3 1
Classification of elements and periodicity in properties (*)     2
Chemical bonding and molecular structure (*) 3 3 3
States of matter 1 4  
Thermodynamics (*) 3 3 2
Equilibrium 3 3 6
Redox reactions (*)   3  
Hydrogen (*)      
The s-block elements (*)     3
The p-block elements (*) 2 1  
Organic chemistry - Some basic principles and techniques 3 5  
Hydrocarbons (*) 1   3
Environmental chemistry 1 1  
Class XII
The Solid State (*) 1 1 1
Solutions 2 3 3
Electrochemistry (*) 2 4 2
Chemical kinetics 2 1 2
Surface chemistry 3 1 1
General principles and processes of isolation of elements 2 1  
The p-block elements (*) 5   2
The d- and f- block elements (*)   3 3
Coordination compounds (*) 2 2 3
Haloalkanes and haloarenes     1
Alcohols , phenols and Ethers 1    
Aldehydes, ketones and carboxylic acids 3 3 4
Organic compounds Containing Nitrogen 1 2 4
Biomolecules 2 1 1
Polymers 2 1 1
Chemistry in Everyday Life 1 1 1