Chemistry Concept Weightage 2020-2023

Chemistry Concept Weightage (2020-2023)

Chemistry is divided into Physical Chemistry, Organic Chemistry, and Inorganic Chemistry, with each carrying substantial weight.

Key Topics and Weightage:

• Physical Chemistry (Thermodynamics, Electrochemistry, Equilibrium, Chemical Kinetics) – 30-35%
• Organic Chemistry (General Organic Chemistry, Hydrocarbons, Alcohols, Aldehydes, Ketones, Carboxylic Acids) – 35-40%
• Inorganic Chemistry (Periodic Table, Coordination Compounds, Chemical Bonding) – 25-30%

Recent Trend:

• Organic Chemistry has the highest weightage, contributing significantly to the Chemistry section.
• Physical Chemistry topics like Electrochemistry and Thermodynamics are regularly asked.
• Inorganic Chemistry remains a stable portion of the paper, with focus areas like the Periodic Table and Chemical Bonding.

Chemistry Chapter-Wise Weightage for NEET

Chemistry is divided into three main sections: Physical Chemistry, Organic Chemistry, and Inorganic Chemistry. Here’s how the weightage is typically distributed:

Class 11 Chemistry Chapter-Wise Weightage:

1.       Some Basic Concepts of Chemistry: 2-3%

o    Mole concept, stoichiometry, and chemical reactions.

2.      Structure of Atom: 3-4%

o    Bohr’s model, quantum numbers, electronic configuration.

3.      Classification of Elements and Periodicity in Properties: 2-3%

o    Periodic table trends and classification of elements.

4.      Chemical Bonding and Molecular Structure: 5-6%

o    VSEPR theory, hybridization, molecular orbital theory, and bonding.

5.      States of Matter (Gases and Liquids): 2-3%

o    Ideal gas laws, kinetic theory of gases, and Van der Waals forces.

6.     Thermodynamics: 7-8%

o    First law, enthalpy, entropy, and Gibbs free energy.

7.      Equilibrium: 5-6%

o    Chemical and ionic equilibrium, Le Chatelier’s principle.

8.     Redox Reactions: 2-3%

o    Oxidation-reduction reactions, balancing equations.

9.     Hydrogen: 1-2%

o    Properties and reactions of hydrogen, hydrides, and water.

10.  The s-Block Elements: 2-3%

o    Alkali and alkaline earth metals, their compounds, and properties.

11.    The p-Block Elements: 2-3%

o    Group 13-18 elements and their compounds.

12.   Organic Chemistry – Some Basic Principles and Techniques: 6-7%

o    Nomenclature, isomerism, reaction mechanisms (SN1, SN2, E1, E2), and resonance.

13.   Hydrocarbons: 3-4%

o    Alkanes, alkenes, alkynes, aromatic compounds.

Class 12 Chemistry Chapter-Wise Weightage:

1.       Solid State: 2-3%

o    Crystal lattices, unit cells, and types of solids.

2.      Solutions: 3-4%

o    Colligative properties, Raoult's law, and ideal/non-ideal solutions.

3.      Electrochemistry: 4-5%

o    Nernst equation, galvanic cells, conductance, and electrolysis.

4.      Chemical Kinetics: 3-4%

o    Reaction rates, order of reactions, and Arrhenius equation.

5.      Surface Chemistry: 2-3%

o    Adsorption, catalysis, colloids, and emulsions.

6.     The d- and f-Block Elements: 4-5%

o    Transition metals, lanthanides, and their properties.

7.      Coordination Compounds: 4-5%

o    Ligands, coordination numbers, crystal field theory.

8.     Aldehydes, Ketones and Carboxylic Acids: 4-5%

o    Reactions of carbonyl compounds, nucleophilic addition.

9.     Alcohols, Phenols and Ethers: 3-4%

o    Properties and reactions of alcohols, phenols, and ethers.

10.  Biomolecules: 3-4%

o    Carbohydrates, proteins, nucleic acids, and enzymes.

11.    Polymers: 2-3%

o    Types of polymers, polymerization reactions, and biodegradable polymers.

12.   Chemistry in Everyday Life: 2-3%

o    Drugs, soaps, detergents, and food preservatives.