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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.

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📁 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

4.6 g Na = 0.2 mol. From the equation, 2 mol Na produce 1 mol H₂. Hence 0.2 mol Na produces 0.1 mol H₂.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Atomic mass = mass of one atom × Avogadro's number = 2.66 × 10⁻²³ × 6.022 × 10²³ ≈ 16 u.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

One mole of CCl₄ contains 4 moles of Cl atoms. Thus 0.5 mol contains 2 mol Cl atoms.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

From the ratio, 2 mol H₂S produce 3 mol S. Therefore, 1 mol H₂S produces 1.5 mol S. Mass = 1.5 × 32 = 48 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Urea contains two nitrogen atoms per molecule. Thus 0.5 mol nitrogen atoms correspond to 0.25 mol urea. Mass = 0.25 × 60 = 15 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Strong heating of 10 g CaCO₃ produces carbon dioxide. The volume of CO₂ at STP is

A. 1.12 dm³
B. 2.24 dm³
C. 22.4 dm³
D. 11.2 dm³

10 g CaCO₃ = 0.1 mol. One mole CaCO₃ gives one mole CO₂. Therefore volume = 0.1 × 22.4 = 2.24 dm³.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

The balanced equation shows equal coefficients for K and KOH, giving a simplified ratio of 1:1.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

One mole of an organic compound contains six moles of carbon atoms. The compound is

A. CH₄
B. C₂H₅OH
C. C₆H₆
D. C₃H₆O

Benzene contains six carbon atoms in each molecule, so one mole contains six moles of carbon atoms.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

An atom having a mass close to 9.3 × 10⁻²³ g most likely belongs to

A. Copper
B. Iron
C. Zinc
D. Silver

Multiplication by Avogadro's number gives approximately 56 g mol⁻¹, the atomic mass of iron.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Complete combustion of 16 g methane requires oxygen having a mass of

A. 16 g
B. 32 g
C. 64 g
D. 48 g

16 g CH₄ = 1 mol. One mole methane requires two moles oxygen. Mass = 2 × 32 = 64 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Twenty-eight grams of iron react with twenty grams sulfur. The limiting reactant is

A. Sulfur
B. Iron
C. Both react completely
D. Neither reacts

Iron provides only 0.5 mole while sulfur provides 0.625 mole. Iron is present in the smaller stoichiometric amount.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Twelve moles of water react with one mole Al₄C₃. Mass = 12 × 18 = 216 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

One-quarter mole KMnO₄ contains oxygen atoms equal to

A. 0.25 mole
B. 0.50 mole
C. 1 mole
D. 2 moles

Each mole KMnO₄ contains four moles oxygen atoms. Therefore, 0.25 mole contains one mole oxygen atoms.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Thermal decomposition of one mole Pb(NO₃)₂ leaves residue weighing

A. 207 g
B. 223 g
C. 239 g
D. 446 g

One mole Pb(NO₃)₂ forms one mole PbO whose molar mass is 223 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Oxygen gas weighing 1.6 g contains molecules equal to

A. 3.011 × 10²²
B. 6.022 × 10²²
C. 3.011 × 10²³
D. 6.022 × 10²³

1.6 g oxygen equals 0.05 mole. Therefore, the number of molecules equals 0.05 × Avogadro's number.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Twenty-five grams equal 0.25 mole CaCO₃. The same amount of CO₂ occupies 5.6 dm³ at STP.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Moles of CS₂ = 19/76 = 0.25 mol. According to the equation, 1 mol CS₂ produces 2 mol SO₂. Therefore, 0.25 mol CS₂ forms 0.5 mol SO₂. Mass = 0.5 × 64 = 32 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

The total number of ions in 0.1 moles of aluminium sulphate, Al₂(SO₄)₃, is

A. 6.022 × 10²³
B. 6.022 × 10²²
C. 3.011 × 10²³
D. 3.011 × 10²²

One formula unit produces 5 ions (2 Al³⁺ + 3 SO₄²⁻). Therefore, 0.1 mol gives 0.5 mol ions = 3.011 × 10²³ ions.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Thermal decomposition of 10 g calcium carbonate produces carbon dioxide occupying

A. 1.12 dm³
B. 2.24 dm³
C. 5.60 dm³
D. 11.2 dm³

Ten grams correspond to 0.1 mole CaCO₃, producing 0.1 mole CO₂ occupying 2.24 dm³ at STP.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026
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