Content Curator | Updated On - Jun 22, 2024
Physical Chemistry chapters for NEET play a major part in the Chemistry syllabus. According to NEET 2024 Chemistry syllabus, the Physical Chemistry portion has undergone major changes with the deletion of topics. At present, there are over 8 total Physical Chemistry chapters for NEET. Topics are included from both class 11 and 12 NCERT levels. Now let’s take a look at the revised syllabus along with the weightage of topics in detail.
According to the NEET 2024 revised syllabus, Redox Reactions and Electrochemistry are merged as 1 unit. A few topics of NEET class 11 Chemistry syllabus like Some Basic Concepts, Atomic Structure, and Chemical Thermodynamics have been removed. If we talk about the important Physical Chemistry chapters for Class 11. Thermodynamics and Equilibrium have the highest weightage of 8% and 6% respectively. The unit “States and Matter” from the NEET class 11 Chemistry syllabus has been completely removed.
Likewise, NEET class 12 Chemistry syllabus includes 2 major topics, i.e., Solutions and Chemical Kinetics. The Solutions is the topic with the highest weightage of 5%. The entire chapters of Solid State, and Surface Chemistry has been removed from NEET class 12 Physical Chemistry portion. Chemical Kinetics is another important topics of class 12th Physical Chemistry chapters for NEET.
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What are Physical Chemistry Chapters for NEET?
In NEET 2024 Syllabus, a total of 8 units are included in the Physical Chemistry Syllabus. We have provided for you the unit wise topics of Physical Chemistry chapters for NEET as follows:
| Units | Topics |
|---|---|
| Unit 1- Some Basic Concepts of Chemistry | Matter and its nature, Dalton's atomic theory: Concept of atom, molecule, element. and compound:: Laws of chemical combination; Atomic and molecular masses, mole concept, molar mass, percentage composition, empirical and molecular formulae: Chemical equations and stoichiometry |
| Unit 2- Atomic Structure | Nature of electromagnetic radiation, photoelectric effect; Spectrum of the hydrogen atom. Bohr model of a hydrogen atom - its postulates, derivation of the relations for the energy of the electron and radii of the different orbits, limitations of Bohr's model; Dual nature of r,latter, de Broglie's relationship. Heisenberg uncertainty principle. Elementary ideas of quantum mechanics, quantum mechanics, the quantum mechanical model of the atom, its important features. Concept of atomic orbitals as one-electron wave functions: Variation ofY and Y2 with r for ls and 2s orbitals: various quantum numbers (principal, angular momentum, and magnetic quantum numbers) and their significance; shapes of s, p, and d - orbitals, electron spin and spin quantum number: Rules for filling electrons in orbitals - Aufbau principle. Pauli's exclusion principle and Hund's rule, electronic configuration of elements, extra stability of half-filled and completely filled orbitals |
| Unit 3- Chemical Bonding and Molecular Structure | Kossel-Lewis approach to chemical bond formation, the concept of ionic and covalent bonds. Ionic Bonding: Formation of ionic bonds, factors affecting the formation of ionic bonds; calculation of lattice enthalpy. Covalent Bonding: Concept of electronegativity. Fajan's rule, dipole moment: Valence Shell Electron Pair Repulsion (VSEPR) theory and shapes of simple molecules. |
| Unit 4- Chemical Thermodynamics | Fundamentals of thermodynamics: System and surroundings, extensive and intensive properties' state functions, types of processes. The first law of thermodynamics - Concept of work, heat internal energy and enthalpy, heat capacity, molar heat capacity; Hess's law of constant heat summation; Enthalpies of bond dissociation, combustion' formation, atomization. sublimation. phase transition, hydration. ionization. and solution. The second raw of thermodynamics - Spontaneity of processes |
| Unit 5- Solutions | Different methods for expressing the concentration of solution - molality, molarity, mole fraction. percentage (by volume and mass both), the vapour pressure of solutions and Raoult's law - Ideal and. non-ideal solutions, vapour pressure - composition, plots for ideal and non-ideal solutions: colligative properties of dilute solutions - a relative lowering of vapour pressure, depression of freezing point, the elevation of.boiling point and osmotic pressure; Determination of molecular mass using colligative properties; Abnormal value of molar mass, Van't Hoff Factor and its significance. |
| Unit 6- Equilibrium | Meaning of equilibrium, the concept of dynamic equilibrium. Equilibria involving physical processes: Solid-liquid, liquid - gas and solid-gas equilibria, Henry's law. General characteristics of equilibrium involving physical processes. Equilibrium involving chemical processes: Law of chemical equilibrium, equilibrium constants (Kp and Kc) and their significance, the significance of ΔG and ΔG° in chemical equilibrium, factors affecting equilibrium concentration, pressure, temperature, the effect of catalyst; Le Chatelier's principle. Ionic equilibrium: weak. and strong electrolytes, ionization of electrolytes, various concepts of acids and bases (Arrhenius and Bronsted - Lowry and Lewis) and their ionization, acid-base equilibria (including multi stage ionization) and ionization constants, ionization of water. PH scale, common ion effect, hydrolysis of salts and PH of their solutions, the solubility of sparingly soluble salts and solubility products, buffer solutions. |
| Unit 7- Redox Reactions and Electrochemistry | Electronic concepts of oxidation-reduction, redox reactions, oxidation numbers, rules for assigning oxidation numbers, balancing of redox reactions. Electrolytic and metallic conduction, conductance in electrolytic solutions, molar conductivities and their variation with concentration, Kohlrausch's law and its applications. Electrochemical Cells - Electrolytic and Galvanic cells, different types of electrodes, electrode potentials including standard electrode potential, half-cell and cell reactions, emf of a Galvanic cell and its measurement: Nernst equation and its applications; Relationship between cell potential and Gibbs' energy change: Dry cell and lead accumulator; Fuel cells. |
| Unit 8- Chemical Kinetics | Rate of a chemical reaction, factors affecting the rate of reactions: concentration, temperature, pressure, and catalyst; elementary and complex reactions, order and molecularity of reactions, rate law, rate constants and its units, differential and integral forms of zero and first-order reactions, their characteristics and half lives, the effect of temperature on the rate of reactions, Arrhenius theory, activation energy and its calculation, collision theory of bimolecular gaseous reactions (no derivation). |
NEET Physical Chemistry Chapters wise Weightage 2024
Understanding question paper pattern can assist you in understanding NEET Chemistry chapter wise weightage in a better way. You need to thoroughly understand the NEET Physical Chemistry chapter wise weightage as it can guide you regarding important areas and you can henceforth plan your preparation likewise. We have provided for you with NEET Chemistry chapter wise weightage of both class 11 and 12 topics:
NEET Chemistry Class 11 Chapter wise Weightage
| Topics | Expected Number of Questions | Expected Weightage in Percentage |
|---|---|---|
| Some Basic Concepts of Chemistry | 1 | 2% |
| Atomic Structure | 2 | 5% |
| Chemical Bonding and Molecular Structure | 3 | 6% |
| Chemical Thermodynamics | 2-3 | 8% |
| Equilibrium | 2-3 | 6% |
| Redox Reactions and Electrochemistry | 4 | 9% |
NEET Chemistry Class 12 Chapter wise Weightage
| Topics | Expected Number of Questions | Expectec Weightage in Percentage |
|---|---|---|
| Solutions | 2 | 5% |
| Chemical Kinetics | 2 | 4% |
Difficulty Level of Physical Chemistry Chapters for NEET
As per previous year NEET paper analysis, the difficulty level of Physical Chemistry questions was easy. Chemical Bonding was reported to be in the side of difficult part. Based on examinees’ reports, our subject matter expert has provided the below-mentioned difficulty level of Physical Chemistry portion of NEET:
| Section A | ||||
|---|---|---|---|---|
| Topics | Easy | Medium | Difficult | Total |
| Physical Chemistry Class 11 | 0 | 6 | 1 | 7 |
| Physical Chemistry Class 12 | 4 | 4 | 3 | 11 |
NEET Recommended Books of Physical Chemistry
We have listed some NEET best books in order to assist your preparation for acing the examination:
| Books | Author/ Publisher | Price | Buy Link |
|---|---|---|---|
| GRB A Textbook of Physical Chemistry for NEET & All Other Competitive Entrance Examinations (Based on NCERT) | O.P. Tandon & A.S. Singh | INR 950 | Click here |
| NEET Objective Chemistry Volume 1 | Dr. RK Gupta | INR 598 | Click here |
| NEET Objective Chemistry Volume 2 | Dr. RK Gupta | INR 617 | Click here |
| Modern's abc Plus of Chemistry for Class-11 (Part I & II) Dr. S.P. Jauhar (Latest Edition) | Dr. S.P. Jauhar | INR 1,320 | Click here |
| Modern's ABC+ Chemistry (Part I & II) for Class 12 - by S.P. Jauhar (2024-25 Examination) | Dr. S.P. Jauhar | INR 1390 | Click here |
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Physical Chemistry Chapters for NEET FAQs
Ques. Name the chapters in NEET Physical Chemistry section?
Ans. In the Physical Chemistry section of NEET, there are eight units. Redox Reactions and Electrochemistry which were previously different topics, now merged as a single unit.
Ques. Which chapters are included in the Physical Chemistry for NEET?
Ans. Some of the Physical Chemistry chapters included in the NEET syllabus are as follows:
- Some Basic Concepts of Chemistry
- Atomic Structure
- Chemical Bonding and Molecular Structure
- Chemical Thermodynamics
- Solutions
- Equilibrium
- Redox Reactions and Electrochemistry
- Chemical Kinetics
Ques. How many questions are in Physical Chemistry Chapters for NEET?
Ans. The Physical Chemistry Section of the NEET consists of approximately 11 questions. The Majority of the questions are asked from the Class 12 syllabus. The Physical Chemistry section's difficulty level is moderate.
Ques. Is Physical Chemistry easy for NEET?
Ans. In reference to previous year’s question paper, the Physical Chemistry questions were easier than Inorganic and Organic part. However, some students said Chemical Bonding to be a slightly difficult in Physical Chemistry portion.
Ques. Which Physical Chemistry chapter is the hardest for NEET?
Ans. NEET 2024 Chemistry syllabus has undergone major changes with deletion of topics. As per NEET analysis from previous year, Thermodynamics, Chemical Bonding, Equilibrium are some units considered to be the toughest chapters in the NEET Physical Chemistry.
*The article might have information for the previous academic years, which will be updated soon subject to the notification issued by the University/College.
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