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Foundation University School of Health Sciences13 Questions

Chemistry MCQs

Practice Chemistry multiple-choice questions for Foundation University School of Health Sciences competitive exams. Each question includes the correct answer and a short explanation, and past-paper questions are marked so you can revise both repeated and fresh material in one place.

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Protein
Lipid
Carbohydrate
Nucleic acid
ExplanationMonosaccharides, the building blocks of carbohydrates, typically follow the empirical formula (CH2O)n.
Ionic bond
Nonpolar covalent bond
Polar covalent bond
Hydrogen bond
ExplanationA nonpolar covalent bond occurs when electrons are shared equally between two atoms with similar electronegativity.
0
7
10
14
ExplanationAt 25°C, a pH of 7 indicates an equal concentration of hydronium and hydroxide ions.
Proton
Neutron
Electron
Nucleus
ExplanationElectrons are negatively charged particles orbiting the atomic nucleus.
Synthesis
Decomposition
Double displacement
Combustion
ExplanationIn a double displacement reaction, the cations and anions of two reactants switch partners.
Charles's Law
Boyle's Law
Avogadro's Law
Gay-Lussac's Law
ExplanationBoyle's Law describes the inverse relationship between pressure and volume (P1V1 = P2V2).
10 g/mol
18 g/mol
20 g/mol
32 g/mol
ExplanationHydrogen is approx 1 g/mol (x2) and Oxygen is 16 g/mol, totaling 18 g/mol.
Protons
Electrons
Neutrons
Chemical bonds
ExplanationIsotopes are atoms of the same element with the same proton count but different neutron counts.
Hydroxyl
Amino
Carboxyl
Phosphate
ExplanationThe carboxyl group (-COOH) is the defining functional group of organic carboxylic acids.
Peptide bonds
Glycosidic linkages
Ester bonds
Hydrogen bonds
ExplanationProteins are polymers of amino acids linked together by peptide bonds.
Acetic acid
Hydrochloric acid
Carbonic acid
Ammonia
ExplanationHydrochloric acid (HCl) dissociates completely in water, making it a strong acid.
Number of neutrons
Mass number
Number of protons
Total number of subatomic particles
ExplanationThe atomic number is defined strictly by the number of protons in the nucleus of an atom.
Molal
Molar
Normal
Percent composition
ExplanationMolarity (M) is the concentration unit defined as moles of solute per liter of solution.

Frequently Asked Questions

Are these Chemistry MCQs free?

Yes. Every Chemistry MCQ on this page is free to practice, including the correct answer and explanation.

Do these include past-paper questions?

Yes — questions sourced from past papers are clearly marked with a "Past Paper" badge, alongside fresh practice questions.

Which exams do these Chemistry MCQs help with?

They are aimed at Foundation University School of Health Sciences and related Pakistani competitive exams that test Chemistry.

How should I practice subject-wise MCQs?

Attempt each question first, then reveal the answer and read the explanation. Short, focused sessions on one subject work better than long unstructured reading.

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