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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

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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

The mole ratio Na : NaCl is 1:1. Therefore, 0.5 moles of Na produce 0.5 moles of NaCl. Mass = 0.5 × 58.5 = 29.25 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Moles of N₂ = 28 ÷ 28 = 1 mole. One mole of N₂ forms 2 moles of NH₃. Volume = 2 × 22.4 = 44.8 dm³.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Moles = 1 ÷ 22.4 = 0.0446 mol. Molar mass = 1.25 ÷ 0.0446 ≈ 28 g/mol.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

The number of ions present in 0.5 moles of aluminium chloride (AlCl₃) when completely dissociated in water is

A. 6.022 × 10²³
B. 1.2044 × 10²⁴
C. 1.8066 × 10²⁴
D. 2.4088 × 10²⁴

Each AlCl₃ gives 4 ions. Therefore, 0.5 × 4 = 2 moles of ions. Number of ions = 2 × 6.022 × 10²³ = 1.2044 × 10²⁴.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

The volume ratio SO₂ : SO₃ is 1:1. Hence, 44.8 dm³ of SO₂ produces 44.8 dm³ of SO₃.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Molar mass = (4.4 × 10⁻²² g) × (6.022 × 10²³ mol⁻¹) ≈ 265 g/mol.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

30 g of C₂H₆ = 1 mole. One mole of C₂H₆ produces 3 moles of H₂O. Mass of water = 3 × 18 = 54 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

The total number of atoms in 44.8 dm³ of ammonia gas (NH₃) at STP is

A. 6.022 × 10²³
B. 2.4088 × 10²⁴
C. 4.8176 × 10²⁴
D. 1.2044 × 10²⁴

44.8 dm³ = 2 moles NH₃. Each molecule has 4 atoms. Total atoms = 8 moles of atoms = 4.8176 × 10²⁴ atoms.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

50 g CaCO₃ = 0.5 mole. It forms 0.5 mole CaO. Mass = 0.5 × 56 = 28 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

108 g Al = 4 moles. The ratio 4Al : 2Al₂O₃ gives 2 moles Al₂O₃.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

The volume occupied by 3.011 × 10²³ molecules of chlorine gas (Cl₂) at STP is

A. 11.2 dm³
B. 22.4 dm³
C. 5.6 dm³
D. 44.8 dm³

3.011 × 10²³ molecules = 0.5 mole. Volume = 0.5 × 22.4 = 11.2 dm³.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

One mole Pb(NO₃)₂ forms one mole PbO. Molar mass PbO = 207 + 16 = 223 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Oxygen gas having a mass of 1.6 g contains molecules numbering

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

1.6 g O₂ = 0.05 mol. Molecules = 0.05 × 6.022 × 10²³ = 3.011 × 10²².

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Molecular formula is C₆H₁₂O₆ because 180/30 = 6. Thus each mole contains 12 moles hydrogen atoms.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Gas volumes follow mole ratios. Ratio N₂:H₂ = 1:3. Therefore 5 dm³ nitrogen requires 15 dm³ hydrogen.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

One mole pentane forms 5 CO₂ + 6 H₂O = 11 mol products. Therefore 0.25 mol forms 2.75 mol products.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

An atom has mass 9.3 × 10⁻²³ g. The element is most likely

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

Multiplying by Avogadro's number gives approximately 56 g/mol, corresponding to iron.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

A mixture contains 28 g Fe and 20 g S. The limiting reactant during Fe + S → FeS is

A. Iron
B. Sulphur
C. Both react completely
D. Neither

Iron = 0.5 mol, sulphur = 0.625 mol. Since the reaction ratio is 1:1, iron limits the reaction.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

One mole KMnO₄ contains four moles oxygen atoms. Thus only 0.25 mol KMnO₄ contains one mole oxygen atoms.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026
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