Free Chemistry MCQs with Answers
13,720 free Chemistry MCQs organised chapter by chapter, each with the correct answer and a written explanation of why that answer is correct. Unlimited attempts, no fee and no account needed.
Chemistry is examined by 14 of the exams on TestUstad, Lecturer Chemistry Test, Subject Specialist Chemistry Test, MDCAT and ETEA MDCAT among them, and all of them draw the same bank. A Chemistry fact does not change between papers, so one page prepares you for every exam that asks it.
Intermediate-level chemistry for MDCAT, ECAT and NET.
13,720
Free MCQs
25
Chapters
96 subtopics
14
Exams testing it
up to 80 MCQs a paper
48
Papers analysed
2005 to 2025
Chemistry chapter-wise MCQs
All 25 chapters of Chemistry, with 96 subtopics beneath them, in syllabus order with the depth of the bank behind each one. Tap a chapter to practise it on its own. If you are short of time, start with s-Block and p-Block Elements, Chemistry of Hydrocarbons and Chemical Bonding.
Priority is measured, not asserted: 2,422 Chemistry questions across 48 solved ETEA MDCAT, MDCAT and NUMS papers from 2005 to 2025 were counted and attributed to the chapter they came from. The share column is that count.
| Chapter | MCQs | Share of papers | Priority |
|---|---|---|---|
| 1. Fundamental Concepts of Chemistry Moles and Avogadro's Number, Limiting and Excess Reactants, Theoretical and Percentage Yield | 894 | 5% | Critical |
| 2. Atomic Structure Electronic Configuration, Quantum Numbers, Discovery of the Proton and 3 more | 922 | 6% | Critical |
| 3. Gases Ideal Gas Equation, Kinetic Molecular Theory, Real and Ideal Gases and 4 more | 443 | 4% | Important |
| 4. Liquids Properties of Liquids, Hydrogen Bonding, Evaporation, Boiling Point and Vapour Pressure and 1 more | 350 | 3% | Standard |
| 5. Solids Crystalline Solids, Ionic and Molecular Crystals, Lattice Energy and 2 more | 357 | 2% | Standard |
| 6. Chemical Equilibrium Reversible Reactions, Le Chatelier's Principle, Haber's Process and 3 more | 625 | 4% | Important |
| 7. Reaction Kinetics Order of Reaction, Activation Energy and Activated Complex, Rate of Reaction and 2 more | 573 | 3% | Important |
| 8. Thermochemistry and Energetics of Chemical Reactions System, Surroundings and State Functions, Enthalpy, Exothermic and Endothermic Reactions and 3 more | 728 | 4% | Important |
| 9. Electrochemistry Oxidation and Reduction, Redox Reactions, Standard Hydrogen Electrode and 1 more | 696 | 5% | Critical |
| 10. Chemical Bonding Hybridization, VSEPR Theory, Sigma and Pi Bonds and 2 more | 964 | 7% | Critical |
| 11. s-Block and p-Block Elements Periodic Properties and Trends, Reactions of Group IV Elements, Reactions of Group II Elements and 2 more | 1,359 | 9% | Critical |
| 12. Transition Elements Electronic Structure of d-Block Elements | 531 | 3% | Standard |
| 13. Fundamental Principles of Organic Chemistry Isomerism, Functional Groups, Classification of Organic Compounds | 536 | 3% | Standard |
| 14. Chemistry of Hydrocarbons Benzene and Aromatic Compounds, Alkanes, Alkenes and 2 more | 1,091 | 8% | Critical |
| 15. Alkyl Halides Nucleophilic Substitution, Nomenclature, Structure and Reactivity, Elimination Reactions | 458 | 4% | Important |
| 16. Alcohols and Phenols Alcohols, Phenols | 535 | 5% | Important |
| 17. Aldehydes and Ketones Reactivity of Aldehydes and Ketones, Nucleophilic Addition Reactions, Preparation of Aldehydes and Ketones | 679 | 5% | Important |
| 18. Carboxylic Acids Reactivity of Carboxylic Acids, Carboxylic Acid Derivatives, Nomenclature, Structure and Preparation | 550 | 5% | Important |
| 19. Macromolecules Classification of Proteins, Enzymes as Biocatalysts, Importance of Proteins | 299 | 3% | Important |
| 20. Industrial Chemistry Polymers, Dyes and 1 more | 292 | 1% | Standard |
| 21. Acids, Bases and Salts Bronsted-Lowry and Lewis Concepts, pH and pOH, Salts and Hydrolysis | 314 | 3% | Standard |
| 22. Solutions and Colloids Concentration Units, Colligative Properties and 1 more | 119 | 2% | Standard |
| 23. Experimental Techniques in Chemistry Sublimation and Distillation, Solvent Extraction, Filtration and Crystallisation | 79 | <1% | Standard |
| 24. Analytical Chemistry Spectroscopy and Analysis, Chromatography | 105 | 2% | Standard |
| 25. Environmental Chemistry Atmospheric Pollution, Water Pollution and Treatment, Green Chemistry | 221 | 3% | Standard |
Exams that test Chemistry
Every exam on TestUstad that examines Chemistry, and how much of each paper it is worth. The weightage is what decides how much of your preparation Chemistry deserves: at 80 of 100 MCQs it is 80% of the Lecturer Chemistry Test paper on its own.
Chemistry in entry tests
| Exam | Chemistry MCQs | Share of paper |
|---|---|---|
| MDCAT Chemistry MCQs Medical and Dental College Admission Test. Conducted by Pakistan Medical and Dental Council. | 45 | 25% |
| ETEA MDCAT Chemistry MCQs ETEA MDCAT (Khyber Pakhtunkhwa). Conducted by Educational Testing and Evaluation Agency, Khyber Pakhtunkhwa. | 45 | 25% |
| DUHS Chemistry MCQs DUHS Entry Test. Conducted by Dow University of Health Sciences. | 45 | 25% |
| KMU Chemistry MCQs KMU Entry Test. Conducted by Khyber Medical University. | 45 | 25% |
| NUMS Chemistry MCQs NUMS MDCAT. Conducted by National University of Medical Sciences. | 40 | 27% |
| ECAT Chemistry MCQs Engineering College Admission Test. Conducted by University of Engineering and Technology, Lahore. | 30 | 30% |
| NET Chemistry MCQs NUST Entry Test. Conducted by National University of Sciences and Technology. | 30 | 15% |
| ETEA Engineering Admission Test Chemistry MCQs ETEA Engineering Admission Test. Conducted by Educational Testing and Evaluation Agency. | 30 | 30% |
| GIKI Chemistry MCQs GIKI Admission Test. Conducted by Ghulam Ishaq Khan Institute of Engineering Sciences and Technology. | 30 | 30% |
| PIEAS Chemistry MCQs PIEAS Admission Test. Conducted by Pakistan Institute of Engineering and Applied Sciences. | 30 | 30% |
| NED Chemistry MCQs NED Admission Test. Conducted by NED University of Engineering and Technology. | 30 | 30% |
| BSN Entry Test Chemistry MCQs BSN Nursing Entry Test. Conducted by Nursing Colleges and Universities. | 25 | 25% |
Chemistry in government job tests
| Exam | Chemistry MCQs | Share of paper |
|---|---|---|
| Lecturer Chemistry Test Chemistry MCQs Lecturer Chemistry Test. Conducted by Public Service Commissions. | 80 | 80% |
| Subject Specialist Chemistry Test Chemistry MCQs Subject Specialist Chemistry Test. Conducted by Public Service Commissions. | 80 | 80% |
How to prepare Chemistry for your test
Work one chapter at a time, not the whole subject. Reading Chemistry end to end feels productive and is the slowest way to raise a score. Pick a single chapter, solve its MCQs until you are consistently above 80 percent, and only then move on. There are 25 to get through.
Read the explanation on every question you get wrong. This is the whole reason to practise online rather than from an answer key. A wrong answer is only useful if it tells you which fact you were missing, so every Chemistry MCQ here carries a written explanation and no question can be published without one.
Start where the marks are. Across the papers we have counted, s-Block and p-Block Elements, Chemistry of Hydrocarbons and Chemical Bonding carry the most Chemistry questions. A weak chapter near the top of the table above costs you more marks than a weak one near the bottom, so the order you revise in matters as much as the hours you put in.
Finish with mixed, timed practice. Recalling a fact under the clock is a different skill from recognising it while you revise, and it is the one the paper actually tests. Once several chapters feel solid, sit a timed test that mixes them rather than practising one chapter at a time.
What is in the Chemistry question bank
13,720 published Chemistry MCQs, every one of them carrying the correct answer and a written explanation. 2,180 of them are tagged with the year of the real paper they came from; the rest are written to the same syllabus and the same style.
Chemistry preparation by exam
Each exam hub adds the things that are true of that paper alone: its pattern, its subject weightage, its solved past papers and a study plan built around its date.
Chemistry MCQs: frequently asked questions
Are these Chemistry MCQs free?
Yes. Every Chemistry MCQ on TestUstad is free to read and practise, with unlimited attempts, no daily limit and no account required. There is no trial that expires and no paywall on the question bank. Only full-length mock tests and long-term progress tracking are paid.
Do the Chemistry MCQs come with answers and explanations?
Yes. Every Chemistry question shows the correct answer and a written explanation of why that option is correct, not just an answer key letter. A question cannot be published on TestUstad without an explanation.
How many Chemistry MCQs are there?
There are 13,720 published Chemistry MCQs on TestUstad, organised across 25 chapters. All of them are free, and new questions are added regularly.
Are the Chemistry MCQs chapter-wise?
Yes. The Chemistry MCQs are split into 25 chapters and 96 subtopics beneath them so you can practise one chapter at a time instead of working through the whole subject. You can also practise every Chemistry question together from the "All MCQs" page.
Which exams do these Chemistry MCQs help with?
The same Chemistry bank is used for every exam that tests Chemistry, including Lecturer Chemistry Test, Subject Specialist Chemistry Test, MDCAT, ETEA MDCAT, DUHS, KMU. A Chemistry question does not change between exams, so practising here prepares you for all of them at once.
Are these Chemistry MCQs only for Lecturer Chemistry Test?
No. Lecturer Chemistry Test is the paper that carries the most Chemistry, at 80 of its 100 MCQs, but the same Chemistry bank is drawn by every other exam that examines the subject, including Subject Specialist Chemistry Test, MDCAT, ETEA MDCAT, DUHS, KMU. Nothing here is written for one paper: a Chemistry fact is the same fact whichever exam asks it, so you can prepare for all of them from this one page.
Which Chemistry chapters are most important?
Across the 48 solved Chemistry papers on TestUstad, covering 2005 to 2025, the chapters asked about most are s-Block and p-Block Elements, Chemistry of Hydrocarbons, Chemical Bonding, Atomic Structure, Electrochemistry. Each chapter on this page shows the share of past-paper questions it accounted for, so you can see the ranking rather than take our word for it.
Are these Chemistry MCQs from past papers?
2,180 Chemistry MCQs on TestUstad carry the year of the real paper they came from, and the rest are written to the same syllabus and the same style. Every one of them is solved online with the correct answer and an explanation instead of being handed to you as a PDF, so the paper is something you sit rather than something you read.
How should I prepare Chemistry for a test?
Work one chapter at a time rather than reading the whole subject end to end. Solve that chapter's MCQs until you are consistently above 80 percent, read the explanation on every question you get wrong, and move on only then. There are 25 Chemistry chapters to get through. Once several chapters feel solid, sit a timed test that mixes them, because recalling a fact under the clock is a different skill from recognising it while you revise.
Do I need to sign up to practise Chemistry MCQs?
No. You can practise Chemistry MCQs on TestUstad without creating an account, without giving an email address and without a card. An account only saves your history and progress across sessions.