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Chemistry NMDCAT MCQs

Ace your medical entry test with Pakistan's premium collection of Chemistry MCQs. Strictly aligned with the latest PMDC syllabus, our platform offers high-yield practice questions for Physical, Inorganic, and Organic Chemistry—complete with detailed conceptual explanations to maximize your score.

305 questions found

Subcategories

📁 Absolute Zero 0 📁 Acidity of Alkynes 0 📁 Adhesive 0 📁 ALCOHOLS AND PHENOLS 0 📁 Alcohols and Phenols (Differentiation) 0 📁 ALDEHYDES & KETONES 0 📁 ALKYL HALIDES 0 📁 Anomalous behavior of Water 0 📁 Application of Dipole Movement 0 📁 Application of VSEPR Theory 0 📁 ATONTIC STRUCTURE 0 📁 Balancing Chemical Reaction 0 📁 Boiling point and Vapor Pressure 0 📁 Bond Energy 0 📁 Boyle's Law 0 📁 Buffer Solution 0 📁 CARBOXYLIC ACIDS 0 📁 Charles's Law 0 📁 CHEMICAL BONDING 0 📁 Chemical Equilibrium 0 📁 Chemical Kinetics 0 📁 Chemical Reactions of Benzenes 0 📁 Chemical Reactions/Reactivity 0 📁 Chemistry MCQS By Iqbal Hussain 0 📁 CHETVI ICAL EQUI LIBIRIUM 0 📁 Classification of Proteins 0 📁 Common Ion Effect 0 📁 Conversion of Carboxylic Acid 0 📁 Crystal lattice 0 📁 Crystalline Solids 0 📁 D- & F Block Elements 0 📁 Definition and Classification of Organic Compound 0 📁 Different Terms Used 0 📁 Dipole Movement 0 📁 Discovery of Proton 0 📁 Dyes 0 📁 Effect of Substituents 0 📁 ELECTROCHEVIISTRY 0 📁 Electronic Configuration 0 📁 Electronic Structure 0 📁 Enthalpy 0 📁 Enzymes as Biocatalyst 0 📁 Evaporation 0 📁 Exothermic and Endothermic Reaction 0 📁 Factors affecting rate of reaction 0 📁 Factors Affecting the Shape of Ionic Crystals 0 📁 Free Radical Mechanism 0 📁 Functional Group 0 📁 FUNDAMENTAL CONCEPTS OF CHEMISTRY 0 📁 FUNDAMENTAL PRICIPLES OF ORGANIC CHEMISTRY 0 📁 Haber’s Process 0 📁 Hess’s Law 0 📁 Hybridization 0 📁 Hydrogen Bonding 0 📁 Ideal Gas Equation 0 📁 Importance of Proteins 0 📁 INDUSTRIAL CHEMISTRY 0 📁 Internal Energies 0 📁 Ionic and Molecular Crystals 0 📁 Isomerism 0 📁 IUPAC System of Alkynes 0 📁 Kinetic Molecular Theory 0 📁 Lattice Energy 0 📁 Law of Thermodynamics 0 📁 Le Chatelier's principle 0 📁 Limiting and Excess Reactants 74 📁 LIQUIDS 0 📁 Macro Molecules 0 📁 Moles and Avogadro's Numbers 150 📁 Moles and Avogadro’s Numbers 120 📁 MOT of Benzene Resonance and Resonance Energy 0 📁 Nomenclature 0 📁 Nomenclature and structure of Aldehydes and Ketones 0 📁 Nomenclature of Alkanes 0 📁 Nomenclature of Alkenes 0 📁 Nomenclature Structure and Reactivity 0 📁 Order of Reaction 0 📁 Oxidation and Reduction 0 📁 P- 0 📁 Planck's Quantum Theory 0 📁 Polymers 0 📁 Preparation 0 📁 Preparation of Alkanes 0 📁 Preparation of Alkynes 0 📁 Properties Of Liquids based on Kinetic Molecular Theory 0 📁 Quantum Number 0 📁 Rate Constant 0 📁 Reaction of Aldehydes and Ketones 0 📁 Reaction of Group I elements 0 📁 Reaction of Group II elements 0 📁 Reaction of Group IV elements 0 📁 Reactions of Alkynes 0 📁 Reactivity of Aldehydes and Ketones 0 📁 Reactivity of Benzene 0 📁 Real and Ideal Gas 0 📁 Redox Reaction 0 📁 S AND P BLOCK ELEMNETS 0 📁 S- 0 📁 s- and p- Block Elements Properties and their Trends 0 📁 Shapes of Alkenes 0 📁 Shapes of orbitals 0 📁 Sigma and Pi Bond 0 📁 SOLIDS 0 📁 Solubility Products 0 📁 Spectrum of Hydrogen 0 📁 Standard Hydrogen Electrode (SHE) 0 📁 Standard Temperature and Pressure (STP) 0 📁 Structure and Preparation of Carboxylic Acid 0 📁 structure and reactivity of Alcohol 0 📁 Structure and Reactivity of Alkenes 0 📁 structure and reactivity of Phenols 0 📁 Substitution vs Addition 0 📁 Substitution vs Elimination 0 📁 THERMOCHEMISTRY & ENERGETICS OF CHEMICAL REACTIONS 0 📁 Thermodynamics 0 📁 Unit of "R" 0 📁 Unit of “R” 0 📁 VSEPR Theory 0 📁 Yield 80

Practice Questions

The concept of yield is most important in the field of:

A. Theoretical chemistry
B. Chemical manufacturing and synthesis
C. Physical chemistry
D. Analytical chemistry
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

The “yield” of a reaction always refers to the amount of:

A. Reactant consumed
B. Product formed
C. Catalyst used
D. Energy released
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

The value of the theoretical yield is independent of:

A. The amount of limiting reactant
B. The coefficients in the balanced equation
C. The efficiency of the laboratory procedure
D. The molar mass of the product
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

A reaction that does not go to completion will always have a percent yield that is:

A. 100%
B. Greater than 100%
C. Less than 100%
D. 0%
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

The actual yield is typically given in units of:

A. Moles
B. Grams (mass)
C. Percentage
D. Liters
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

Which of the following factors does NOT typically lead to a lower actual yield?

A. The reaction is reversible and does not go to completion
B. Some product is lost during filtration or transfer
C. The reactants were measured perfectly and were 100% pure
D. Unwanted side reactions occur
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

To calculate the theoretical yield, the first essential step is to have a:

A. High percent yield
B. Known actual yield
C. Balanced chemical equation
D. High temperature
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

The actual yield must be determined by:

A. Calculation using mole ratios
B. Estimation
C. Experimentation
D. Guessing
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

If a chemist aims to produce 50 g of a substance (theoretical yield) but only obtains 40 g, the 40 g represents the:

A. Percent yield
B. Actual yield
C. Limiting reactant mass
D. Stoichiometric yield
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

The theoretical yield of a chemical reaction represents the:

A. Amount of product actually obtained in a lab
B. Maximum amount of product that can be formed from the given reactants
C. Minimum amount of product that can be formed
D. Amount of limiting reactant left over
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

The actual yield is the amount of product that is:

A. Calculated from the balanced equation
B. Measured experimentally in the laboratory
C. Always equal to the theoretical yield
D. The amount of product that should have formed
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

Percent yield is a measure of the ______ of a chemical reaction.

A. rate
B. efficiency
C. temperature change
D. activation energy
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

The actual yield of a reaction is almost always less than the theoretical yield primarily due to:

A. The law of conservation of mass
B. Incomplete reactions, side reactions, and loss of product during recovery
C. The use of a catalyst
D. The high temperature of the reaction
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

The reactant that determines the theoretical yield of a product is the:

A. Excess reactant
B. Catalyst
C. Limiting reactant
D. Solvent
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

The formula for calculating percent yield is:

A. (Theoretical / Actual) × 100%
B. (Actual / Theoretical) × 100%
C. (Actual - Theoretical) × 100%
D. (Moles / Mass) × 100%
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

A percent yield greater than 100% most likely indicates:

A. The reaction was extremely efficient
B. The law of conservation of mass was violated
C. The product is impure (e.g., contains unreacted materials or water)
D. The reaction created new matter
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026

The theoretical yield is a calculated value based on the:

A. Actual amount of product formed
B. Stoichiometry of the balanced chemical equation
C. Rate of the reaction
D. Percent yield of similar reactions
nmdcat.online Chemistry NMDCAT MCQs
Jun 23, 2026
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