NUMS Chemistry Most Important Topics 2026
The top 5 NUMS Chemistry chapters (Chemical Bonding, Atomic Structure, s-Block and p-Block Elements, Fundamental Concepts of Chemistry and Gases) carry about 44 percent of the 40 Chemistry MCQs on the NUMS paper. That ranking comes from counting every Chemistry MCQ in the 7 solved NUMS past papers on TestUstad, 314 questions in total, and matching each one to the chapter it tests.
7 solved NUMS past papers analysed (2014 to 2023).
NUMS Chemistry chapter frequency table
All 23 Chemistry chapters on the NUMS syllabus, heaviest first. The subtopics under each chapter name are the ones it is most often examined on.
| # | Chapter | Expected MCQs | Share of Chemistry | Priority |
|---|---|---|---|---|
| 1 | Chemical BondingHybridization, Bond Energy, Sigma and Pi Bonds | 4.5 | 11.1% | Critical |
| 2 | Atomic StructureDiscovery of the Proton, Quantum Numbers, Electronic Configuration | 3.9 | 9.9% | Critical |
| 3 | s-Block and p-Block ElementsPeriodic Properties and Trends, Reactions of Group II Elements, Reactions of Group I Elements | 3.9 | 9.9% | Critical |
| 4 | Fundamental Concepts of ChemistryMoles and Avogadro's Number | 3.1 | 7.6% | Critical |
| 5 | GasesIdeal Gas Equation, Kinetic Molecular Theory, Standard Temperature and Pressure | 2.2 | 5.4% | Critical |
| 6 | Reaction KineticsFactors Affecting Rate of Reaction, Order of Reaction, Rate of Reaction | 1.9 | 4.8% | Important |
| 7 | Alcohols and PhenolsAlcohols, Phenols | 1.8 | 4.5% | Important |
| 8 | LiquidsEvaporation, Boiling Point and Vapour Pressure, Hydrogen Bonding, Anomalous Behaviour of Water | 1.7 | 4.1% | Important |
| 9 | SolidsCrystalline Solids, Shape of Ionic Crystals, Lattice Energy | 1.7 | 4.1% | Important |
| 10 | Thermochemistry and Energetics of Chemical ReactionsSystem, Surroundings and State Functions, Exothermic and Endothermic Reactions, First Law of Thermodynamics | 1.7 | 4.1% | Important |
| 11 | Carboxylic AcidsReactivity of Carboxylic Acids, Carboxylic Acid Derivatives | 1.5 | 3.8% | Important |
| 12 | Chemistry of HydrocarbonsBenzene and Aromatic Compounds, Alkanes, Alkenes | 1.5 | 3.8% | Important |
| 13 | ElectrochemistryOxidation and Reduction, Redox Reactions, Standard Hydrogen Electrode | 1.5 | 3.8% | Important |
| 14 | Aldehydes and KetonesReactivity of Aldehydes and Ketones | 1.4 | 3.5% | Standard |
| 15 | Chemical EquilibriumHaber's Process | 1.1 | 2.9% | Standard |
| 16 | Fundamental Principles of Organic ChemistryClassification of Organic Compounds, Isomerism, Functional Groups | 1.1 | 2.9% | Standard |
| 17 | Acids, Bases and SaltsSalts and Hydrolysis | 1.0 | 2.5% | Standard |
| 18 | MacromoleculesClassification of Proteins | 1.0 | 2.5% | Standard |
| 19 | Transition ElementsElectronic Structure of d-Block Elements | 0.9 | 2.2% | Standard |
| 20 | Alkyl Halides | 0.8 | 1.9% | Standard |
| 21 | Environmental ChemistryAtmospheric Pollution | 0.8 | 1.9% | Standard |
| 22 | Analytical Chemistry | 0.5 | 1.3% | Standard |
| 23 | Solutions and ColloidsConcentration Units | 0.5 | 1.3% | Standard |
How this was worked out: Every MCQ in the 7 solved NUMS papers we hold (2014 to 2023) was matched to the chapter it tests, which is how the share column is worked out. These are counts of real questions from real NUMS MDCAT papers, not an opinion about which chapters matter. The MCQ column then applies each chapter's share to the 40 Chemistry MCQs the current NUMS pattern carries, rather than averaging the raw counts: those older papers were set to different totals, and a number taken straight off them would describe a paper nobody is sitting any more.
Top 10 most important Chemistry topics for NUMS 2026
Chemical Bonding
CriticalChemical Bonding is 11.1 percent of the NUMS Chemistry paper and works out at about 4.5 MCQs on the current paper. It is examined mostly on Hybridization, Bond Energy and Sigma and Pi Bonds.
Atomic Structure
CriticalAtomic Structure is 9.9 percent of the NUMS Chemistry paper and works out at about 3.9 MCQs on the current paper. It is examined mostly on Discovery of the Proton, Quantum Numbers and Electronic Configuration.
s-Block and p-Block Elements
Criticals-Block and p-Block Elements is 9.9 percent of the NUMS Chemistry paper and works out at about 3.9 MCQs on the current paper. It is examined mostly on Periodic Properties and Trends, Reactions of Group II Elements and Reactions of Group I Elements.
Fundamental Concepts of Chemistry is 7.6 percent of the NUMS Chemistry paper and works out at about 3.1 MCQs on the current paper. It is examined mostly on Moles and Avogadro's Number.
Gases
CriticalGases is 5.4 percent of the NUMS Chemistry paper and works out at about 2.2 MCQs on the current paper. It is examined mostly on Ideal Gas Equation, Kinetic Molecular Theory and Standard Temperature and Pressure.
Reaction Kinetics
ImportantReaction Kinetics is 4.8 percent of the NUMS Chemistry paper and works out at about 1.9 MCQs on the current paper. It is examined mostly on Factors Affecting Rate of Reaction, Order of Reaction and Rate of Reaction.
Alcohols and Phenols
ImportantAlcohols and Phenols is 4.5 percent of the NUMS Chemistry paper and works out at about 1.8 MCQs on the current paper. It is examined mostly on Alcohols and Phenols.
Liquids
ImportantLiquids is 4.1 percent of the NUMS Chemistry paper and works out at about 1.7 MCQs on the current paper. It is examined mostly on Evaporation, Boiling Point and Vapour Pressure, Hydrogen Bonding and Anomalous Behaviour of Water.
Solids
ImportantSolids is 4.1 percent of the NUMS Chemistry paper and works out at about 1.7 MCQs on the current paper. It is examined mostly on Crystalline Solids, Shape of Ionic Crystals and Lattice Energy.
Thermochemistry and Energetics of Chemical Reactions is 4.1 percent of the NUMS Chemistry paper and works out at about 1.7 MCQs on the current paper. It is examined mostly on System, Surroundings and State Functions, Exothermic and Endothermic Reactions and First Law of Thermodynamics.
Practise 728 free Thermochemistry and Energetics of Chemical Reactions MCQs
Every Chemistry chapter on the NUMS syllabus
13,720 free Chemistry MCQs across 23 chapters, every answer explained.
NUMS Chemistry most important topics: frequently asked questions
What are the most important Chemistry topics for NUMS 2026?
The highest-value NUMS Chemistry chapters are Chemical Bonding (about 4.5 MCQs), Atomic Structure (about 3.9 MCQs), s-Block and p-Block Elements (about 3.9 MCQs), Fundamental Concepts of Chemistry (about 3.1 MCQs) and Gases (about 2.2 MCQs). Together they account for 44 percent of the 40 Chemistry MCQs on the NUMS paper. The ranking comes from counting every Chemistry MCQ in the 7 solved NUMS past papers on TestUstad.
How many Chemistry MCQs are on the NUMS paper?
Chemistry is worth 40 MCQs on the NUMS paper as set by National University of Medical Sciences, spread across 23 chapters. This page ranks all 23 of them by how many of those MCQs each chapter is worth.
Where does this NUMS Chemistry ranking come from?
From 7 solved NUMS past papers held on TestUstad, covering 2014 to 2023. Every Chemistry MCQ in them, 314 questions in total, is tagged to the chapter it tests, which is where each chapter's share comes from. The expected MCQ counts apply that share to the 40 Chemistry MCQs the current NUMS pattern carries. You can open any of those papers and check.
Should I skip the low-priority Chemistry chapters for NUMS?
No. Every chapter in this table appears on the NUMS paper, and NUMS is decided by a handful of marks. A chapter marked Standard still costs you the marks you drop on it. Use this ranking to decide the order you study in and how long you spend on each chapter, not to cut chapters out.
Where can I practise these NUMS Chemistry chapters?
Every chapter on this page links to its own free Chemistry MCQs on TestUstad, 13,720 questions across the 23 chapters NUMS examines. Practice is free and unlimited with no account, and every question carries a written explanation of why the correct option is correct.