Practice Chemistry MDCAT MCQs

What is MDCAT?

The Medical and Dental College Admission Test (MDCAT) is an entrance examination for aspiring medical students in Pakistan. The MDCAT exam is a standardized multiple-choice (MCQ) paper-based examination. To be able to get a good score in the MDCAT exam, it is very important that students get ample MCQ practice for each subject.

What is the structure of the MDCAT exam?

Here is a breakdown of the MDCAT test pattern 2024 which includes percentages and number of MCQs for each of the five subjects tested in the MDCAT (Biology, Chemistry, Physics, English, and Logical Reasoning).

Chemistry MDCAT MCQs

The Chemistry section of the MDCAT exam is one that many students find challenging — there are 54 MDCAT Chemistry MCQs in the Chemistry section of the MDCAT, and it makes up 27% of the exam. According to the PMDC MDCAT syllabus for 2024, here are all the chapters that will be tested in the Chemistry section of the exam.

1. Introduction to Fundamental Concepts of Chemistry
2. Atomic Structure
3. Gases
4. Liquids
5. Solids
6. Chemical Equilibrium
7. Reaction Kinetics
8. Thermo-Chemistry and Energetics of Chemical Reactions
9. Electrochemistry
10. Chemical Bonding
11. S and P Block Elements
12. Transition Elements
13. Fundamental Principles of Organic Chemistry
14. Chemistry of Hydrocarbons
15. Alkyl Halides
16. Alcohols and Phenols
17. Aldehydes and ketones
18. Carboxylic acids
19. Macromolecules

Chemistry MDCAT MCQs are 70% recall questions and 30% application level questions. It is very important to get ample practice of Chemistry MDCAT MCQs, since this is a significant portion of the MDCAT exam.

Free MDCAT Practice Test — Chemistry MDCAT MCQs

To help you prepare for MDCAT Chemistry MCQs, we have put together this free MDCAT Chemistry MCQs Online Test. You should attempt this test to assess where you currently stand in your preparation for MDCAT Chemistry, and what areas you need to improve to get a high score in your MDCAT 2024 exam.

1. While finding the relative atomic mass, which of the following standard is used to compare the atomic mass of chlorine (35.5 amu)?
   1. Neon-20
   2. Nucleon number
   3. Carbon-12
   4. Carbon-13
2. During stoichiometry calculations, which of the following laws must be followed?
   1. Law of conservation of mass
   2. Law of conservation of energy
   3. Avogadro's law
   4. Dalton's law
3. The efficiency of a chemical reaction can be expressed as:
   1. Theoretical yield
   2. Actual yield
   3. % yield
   4. Maximum yield
4. Generally the actual yield is:
   1. Greater than theoretical yield
   2. Smaller than theoretical yield
   3. Equal to theoretical yield
   4. Sometime greater and sometime lesser than the theoretical yield
5. Which of the following periodic properties has no unit?
   1. Electron Affinity
   2. Electronegativity
   3. Ionization Potential
   4. Hydration Energy
6. Flame test is not given for:
   1. Ca
   2. Ba
   3. Sr
   4. Mg
7. With increase in the value of principal quantum number, shape of orbitals remain same although their sizes and the energy ______.
   1. Decrease
   2. Remain the same
   3. Increase
   4. May or may not remain the same
8. Number of electrons in the outermost shell of chloride ion (CI-) is:
   1. 17
   2. 1
   3. 7
   4. 8
9. Water has maximum density at:
   1. 0°C
   2. 1°C
   3. -4°C
   4. 4°C
10. DNA molecule is double stranded, in which to chains of DNA are twisted around each other by
    1. Hydrogen bonds
    2. Covalent bonds
    3. Van der Waal's forces
    4. Dative bonds
11. Which one of the following hydrogen bond is stronger than others?
    1. N—H - - - N—H
    2. O—H - - - O—H
    3. F—H - - - F—H
    4. N—H - - - O—H
12. Steam causes severe burns than boiling water. It is due to
    1. Absence of hydrogen bonding
    2. High latent heat of vaporization
    3. Freely moving molecules
    4. Statement is incorrect
13. The product of the concentrations of each ion in saturated solution of a sparingly soluble salt at 298K raised to the power of their relative concentrations is:
    1. Кsp
    2. Kb
    3. Ka
    4. Kw
14. Precipitation occurs when the product of ionic concentration is?
    1. Greater than Ksp
    2. Less than Ksp
    3. Equal to Ksp
    4. Equal to unity
15. Ethanal reacts with HCN to form cyanohydrin. It is an example of
    1. Electrophilic substitution
    2. Nucleophilic addition
    3. Nucleophilic substitution
    4. Electrophilic addition
16. Hybridization of carbon in >C=O (Carbonyl) group is:
    1. sp
    2. sp2
    3. sp3
    4. dsp
17. Identification test for functional groups of organic compounds are associated with specific observations. Tollen's reagent is ammonical silver nitrate solution, which is used for the identification of a functional group X with an observation O. Identify X and O.
    1. X = Aldehyde O = red precipitate
    2. X= Ketone O = Silver mirror
    3. X = Aldehyde O = Silver mirror
    4. X = Ketone O = grey precipitate
18. A spontaneous process is:
    1. Unidirectional and irreversible
    2. Unidirectional and real
    3. Irreversible and real
    4. All of above
19. Reaction of water with quick lime result in the rise in the temperature of the system. Using the concentration change, indicate the nature of which reaction?
    1. Third order reaction
    2. Endothermic reaction
    3. Non spontaneous reaction
    4. Exothermic reaction
20. Which of the following enthalpy change is always exothermic?
    1. Enthalpy of formation
    2. Enthalpy of solution
    3. Enthalpy of atomization
    4. Enthalpy of combustion

These Chemistry MDCAT MCQs will help you evaluate your current preparation for the Chemistry component of the MDCAT exam — use the answer key below to see how well you have scored in this test.

Chemistry MDCAT MCQs Answer Key

For further MDCAT Chemistry practice, test your concepts using these resources:

1. Free Chemistry MDCAT MCQs
2. Free MDCAT Mock Test

Now that the MDCAT exam is so close, students should ensure that their concepts for all subjects are crystal clear. If you want to revise any topic across the five MDCAT subjects, you can find detailed MDCAT recorded lectures here which will help you build an airtight understanding of every concept. You should also be focused on getting as much MDCAT MCQs practice as possible. By following all these strategies and having a comprehensive plan for your preparation, you will greatly increase your chances of acing the MDCAT 2024 exam.

How to Prioritize Topics in MDCAT Chemistry for Maximum Impact

High-Yield Topics

Focus on these areas for maximum returns:

Essential Chapters

Prioritize these high-scoring topics:

1. Organic Chemistry (30% of chemistry questions)
   • Functional groups
   • Reaction mechanisms
   • IUPAC nomenclature
2. Physical Chemistry (25% of chemistry questions)
   • Chemical equilibrium
   • Thermodynamics
   • Solutions
3. Inorganic Chemistry (20% of chemistry questions)
   • Periodic properties
   • Chemical bonding
   • Coordination compounds

Strategic Topic Selection

Base your study plan on:

• Previous years' question frequency
• Topic weightage in syllabus
• Interconnected concepts
• Application-based topics
• Numerical problem areas

Essential Tips for Mastering Chemistry in MDCAT 2025

Understanding the Fundamentals

Success in MDCAT Chemistry begins with a strong foundation in basic concepts. The MDCAT chemistry section tests not just your memory, but your ability to apply chemical principles to solve complex problems. Many students struggle with chemistry because they rush through basic concepts without building a solid foundation. Taking the time to truly understand fundamental principles will make advanced topics much easier to grasp.

Concept Mastery Approach

Mastering chemistry concepts requires a structured and systematic approach. Unlike other subjects where memorization might suffice, chemistry demands a deep understanding of how different concepts interconnect. Think of chemical concepts as building blocks – each new topic builds upon previous ones. Without a strong grasp of basics like atomic structure and bonding, understanding complex reactions and mechanisms becomes nearly impossible.Building a solid understanding requires systematic learning:

• Start with atomic structure and periodic table relationships
• Master chemical bonding before moving to complex reactions
• Understand reaction mechanisms rather than memorizing them
• Connect organic chemistry concepts with real-world applications
• Practice drawing and interpreting molecular structures regularly

Effective Study Techniques

The way you study chemistry can make a significant difference in your MDCAT performance. Traditional methods of reading and re-reading textbooks often prove inefficient for chemistry preparation. Research shows that active learning techniques, where you engage with the material through problem-solving and practical applications, lead to better understanding and retention. Here are proven study methods that have helped countless students excel in MDCAT chemistry:

• Create concept maps linking related topics
• Use mnemonics for remembering complex reactions
• Solve numerical problems daily, especially in thermodynamics
• Maintain a formula diary for quick revision
• Review IUPAC nomenclature rules regularly

Time Management

Time management is often the deciding factor between success and failure in MDCAT chemistry preparation. With 54 MCQs to solve in a limited time, you need both speed and accuracy. Many students make the mistake of studying randomly without a proper schedule, leading to gaps in preparation and last-minute cramming. A well-structured study routine not only ensures complete coverage of the syllabus but also allows time for revision and practice. Here's how to organize your study time effectively:

• Dedicate 2-3 hours daily specifically to chemistry
• Spend 60% time on understanding concepts, 40% on practice
• Reserve early morning hours for complex topics
• Use weekends for extensive practice tests
• Plan periodic revision sessions

Common Mistakes to Avoid in MDCAT Chemistry Preparation

Even the most dedicated students can fall into common preparation traps that hinder their MDCAT performance. Understanding these pitfalls is just as important as knowing what to study. Each year, countless students make the same mistakes, often realizing them too late in their preparation journey. By identifying and avoiding these common errors early, you can save valuable time and significantly improve your chances of success. Our analysis of successful candidates shows that those who consciously avoid these mistakes typically score 15-20% higher in the chemistry section. Let's explore the most critical errors to avoid and learn how to steer clear of them.

Over-Reliance on Memorization

Many students fall into these traps:

• Memorizing reactions without understanding mechanisms
• Learning formulas without knowing their applications
• Focusing on answers without understanding the process
• Neglecting the reasoning behind chemical phenomena
• Skipping practical aspects of chemical reactions

Poor Practice Habits

Watch out for these counterproductive behaviors:

• Solving only easy questions and avoiding challenging ones
• Not timing yourself during practice sessions
• Ignoring previous years' question patterns
• Skipping important derivations
• Not reviewing mistakes after practice tests

Time Management Issues

Common time-related mistakes include:

• Starting preparation too late
• Spending too much time on single topics
• Not allocating sufficient practice time
• Irregular study patterns
• Poor exam day time management

The Role of Practice Tests in MDCAT Chemistry Success

Comprehensive Testing Strategy

Types of Practice Required

Implement various testing methods:

1. Topic-wise Tests

• Start with single chapter tests
• Move to subject sections
• Practice cross-topic questions
• Focus on weak areas
• Track improvement

2. Full-Length Practice Tests

• Simulate exam conditions
• Time management practice
• Stress management
• Question selection strategy
• Speed improvement

Analysis and Improvement

After each practice test:

• Review all mistakes thoroughly
• Identify pattern of errors
• Focus on weak areas
• Track improvement over time
• Adjust study strategy based on results

Mock Test Schedule

Recommended testing timeline:

• 3 months before: Weekly topic tests
• 2 months before: Bi-weekly full tests
• 1 month before: Full tests every 3 days
• Last week: Focus on revision and quick tests

Performance Enhancement Strategies

Maximizing your performance in MDCAT Chemistry requires more than just taking practice tests – it's about learning from each test and continuously refining your approach. Research shows that students who systematically analyze their practice test performance and implement targeted improvement strategies score up to 25% higher than those who simply take test after test without strategic analysis. The following techniques and tips have been compiled from top-scoring students and experienced MDCAT instructors to help you optimize your test performance:

Score Improvement Techniques

• Analyze question patterns
• Practice similar question types
• Time each section separately
• Review incorrect answers immediately
• Keep an error log for future reference

Test-Taking Tips

Success in MDCAT Chemistry isn't just about knowledge – it's about mastering the art of taking MCQ tests effectively. Even students with excellent subject knowledge can underperform if they haven't developed proper test-taking strategies. Understanding how to approach each question, manage time effectively, and handle exam pressure can make the difference between an average and an exceptional score. Here are essential strategies to help you excel on test day:

1. During the Exam:
   • Read questions carefully
   • Look for keyword clues
   • Eliminate wrong options systematically
   • Mark uncertain questions for review
   • Manage time per section effectively
2. Question Approach:
   • Read all options before answering
   • Look for common trap options
   • Use process of elimination
   • Don't change answers unless certain
   • Skip difficult questions initially

Remember: Success in MDCAT Chemistry is not just about knowledge, but also about strategic preparation and systematic practice. Follow these guidelines consistently, and you'll see significant improvement in your performance.

Frequently Asked Questions

How many MCQs are in MDCAT?

There are a total of 200 MCQs in the MDCAT paper pattern and students have 210 minutes or 3.5 hours to solve them. Practice solving one MCQ per

How many MCQs of chemistry are in MDCAT?

There are 54 MCQs in the Chemistry section of the MDCAT which means chemistry makes up 27% of the exam.

Is the MDCAT test easy?

The MDCAT exam is difficult. The reason students find it challenging due to the lack of preparation, application of poor strategies and not using relevant resources. For those students who start preparation on time, they do much better than their peers and score 180+ marks.

Is MDCAT chemistry hard?

The chemistry section on the MDCAT is known to be one of the most challenging sections. Memorization of concepts alone will not guaranteee success here, candidates need to understand the reasoning and concepts behind facts, not just memorize them.

Is there negative marking in MDCAT?

Every MCQ carries 1 mark so for each question answered correctly, candidates will be awarded 1 mark. There is no negative marking in MDCAT Exam.