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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

NH₃ = 2 mol, O₂ = 1.5 mol. O₂ limits. NO = 1.2 mol. Mass = 1.2 × 30 = 36 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

46. The term “excess reagent” implies that after the reaction is complete, some amount of this reactant

A. Is completely converted to product
B. Remains unreacted in the reaction mixture
C. Acts as the solvent for the reaction
D. Is the limiting factor for the reaction rate

An excess reactant is supplied in greater quantity than required and remains after the reaction.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

ZnS ≈ 1 mol and O₂ = 1.5 mol. Stoichiometric mixture. ZnO = 1 mol = 81 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

N₂ = 0.5 mol. H₂ required = 1.5 mol but available = 4 mol. Excess H₂ = 2.5 mol = 5 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

2 mol butane require 13 mol O₂, exactly the amount available.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

O₂ is limiting. H₂O formed = (2/3) × 2 = 1.33 mol.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Stoichiometric reaction produces 4 mol CO₂ = 89.6 dm³.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

For the reaction 2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O, 100 cm³ of 1 M NaOH is mixed with 100 cm³ of 1 M H₂SO₄. The limiting reactant is

A. Sodium hydroxide
B. Sulphuric acid
C. Sodium sulphate
D. Both are stoichiometric

0.1 mol NaOH is insufficient to react completely with 0.1 mol H₂SO₄.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

O₂ is limiting. One mole NO (30 g) is formed.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

The reactant that is not completely consumed in a chemical reaction and remains after the reaction is complete is termed the

A. Catalyst
B. Limiting reactant
C. Excess reactant
D. Intermediate product

The excess reactant remains after the limiting reactant is exhausted.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

A reaction mixture contains 5 moles of CO and 2 moles of O₂ reacting to form CO₂ (2CO + O₂ → 2CO₂). The number of moles of CO₂ formed and excess reactant remaining are

A. 4 moles CO₂, 1 mole CO
B. 5 moles CO₂, no excess
C. 4 moles CO₂, no excess
D. 5 moles CO₂, 1 mole O₂

O₂ is limiting. Four moles CO₂ are formed and 1 mol CO remains.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

The reactants are in the exact stoichiometric ratio. Four moles NH₃ = 68 g are produced.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Moles of N₂ = 56/28 = 2 mol. Moles of H₂ = 12/2 = 6 mol. The mixture is stoichiometric. NH₃ formed = 4 mol. Mass = 4 × 17 = 68 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

27. In the reaction 4Al + 3O₂ → 2Al₂O₃, a chemist mixes 5 moles of Al with 4 moles of O₂. The limiting reactant is

A. Aluminium
B. Oxygen
C. Both are stoichiometric
D. Aluminium oxide

5 mol Al requires 3.75 mol O₂. Since 4 mol O₂ are available, oxygen is in excess. Aluminium is limiting.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Al = 0.5 mol, S = 0.5 mol. Sulphur is limiting. Al₂S₃ formed = 0.5/3 = 0.1667 mol. Mass = 0.1667 × 150 = 25 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Zn = 0.1 mol, HCl = 0.2 mol. Stoichiometric mixture. H₂ = 0.1 mol. Volume = 0.1 × 22.4 = 2.24 dm³.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

30. A key characteristic of the limiting reactant is that its amount determines the

A. Rate constant of the reaction
B. Activation energy of the reaction
C. Theoretical yield of the product
D. Equilibrium constant of the reaction

The limiting reactant determines the maximum amount of product that can be formed.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Fe = 2 mol, H₂O = 2 mol. Water is limiting. Fe₃O₄ = 0.5 mol. Mass = 0.5 × 232 = 116 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

32. In the reaction P₄ + 6Cl₂ → 4PCl₃, a mixture of 62 g of P₄ and 213 g of Cl₂ is taken. The limiting reactant is

A. Phosphorus
B. Chlorine
C. Both are stoichiometric
D. Phosphorus trichloride

P₄ = 0.5 mol and Cl₂ = 3 mol. Required Cl₂ = 3 mol. Both react completely.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026
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