IIT-JEE Chemistry: Important topics

Chemistry is the most scoring section in IIT-JEE. It is also a homogeneous paper that does not take you through strange allays.
A question will appear from each chapter of Chemistry. The weight age is tilted slightly more towards Physical and Organic Chemistry.
In Physical Chemistry Chemical Thermodynamics and Thermochemistry, Electrochemistry, Ionic Equilibrium, Chemical Kinetics, States of matter are important. You can easily score good marks in Chemistry by doing these topics well.
These topics are very important in Organic Chemistry - The topics which involve reactions of alkynes, alekenes, alcohols and carbonyl compounds. Carbonyl compounds are of prime concern. Pay proper attention to organic acids and bases and Bio-molecules.
In Inorganic Chemistry periodic properties, chemical bonding and extraction of metals, qualitative analysis and coordination compound (including crystal field theory) are important. Also pay attention to s, p, and d block elements.

Marks wise break-up for the topics
Organic Chemistry 34 per cent
Physical Chemistry 36 per cent
Inorganic Chemistry 21 per cent
General Chemistry 9 per cent


The following sub topics have high probability of appearing in the exam
  • Atomic Structure – Heisenberg principle, Quantum Numbers, Electronic Configuration.
  • Ionic equlibrium – Salt hydrolysis, buffer solution and solubility products
  • Chemical Kinetics – Arrhenius Equation and order of reaction
  • Electrochemistry – Electrolysis and conductance, concentration cell
  • Gaseous and liquid state – Ideal gas equation , Vanderwaal’s constant ,Kinetic gas theory, diffusion
  • General Organic Chemistry – all topics
  • Amines – Exhaustive ammination
  • Purification and Characteristics of Organic Compounds – separation and analysis of alcohols and phenols
  • Chemistry of representative elements – silicon of oxides and oxyacids
  • Coordination Chemistry and Organo - Metallic compounds – colour and magnetic properties, Hybridisation
  • Qualitative Analysis – II and IV group Analysis
  • Chemical Energitics – Resonance Energy and first law of thermodynamics
  • Hydrocarbons – Alkanes, Alkynes, Markovnikov’s rules
  • Ethers – Breaking of ether linkage
  • Aldehydes and Ketones – Aldol condensation, nucleophilic addition
  • Carboxylic Acid and Its functional derivatives – Carboxylic Acid
  • Chemical Bonding – MOT, Hybridisation, Dipole moment

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