QCE ChemistryPractice Examination 18

This paper covers

• QCAA Chemistry Units 3 & 4 (2025 v1.3) full External Assessment
• Stimulus context: nylon-6,6 condensation polymerisation from hexanedioic acid + 1,6-diaminohexane, amide bond, contrast with addition polymerisation
• Unit 3: chemical equilibrium (Kc, ICE tables, Le Chatelier, collision theory)
• Unit 3: Bronsted-Lowry acids/bases, pH/pOH, Ka/Kb, buffers, acid-base titrations/volumetric analysis
• Unit 3: oxidation states, half-equations, galvanic & electrolytic cells, E°cell, electroplating/refining
• Unit 4: 12 hydrocarbon-derivative functional groups, IUPAC naming, isomerism, intermolecular forces & physical properties
• Unit 4: addition vs condensation polymers, polyamides/nylon, polyesters, proteins, carbohydrates, lipids, biodegradability
• Unit 4: six core organic reactions, Markovnikov, multi-step synthesis, esterification
• Unit 4: industrial synthesis (Haber, contact, biodiesel, bioethanol), green chemistry, atom economy
• Stoichiometry: limiting reagent, theoretical & percentage yield
• Assessment objectives AO1–AO4 only; Band A cause-and-effect explanation, evidence-directed evaluation, fully worked calculations with units
• Paper 1 (Section A 20 MC = 20 marks; Section B 8 short/extended = 38 marks) + Paper 2 (Section C 8 short/extended = 52 marks); grand total 110 marks

Students are permitted to bring into the examination the materials normally allowed for this subject. Answer all questions in the spaces provided.

This is an ATARMAxxing practice paper. It is not an official examination and is not affiliated with, endorsed by, or produced by the VCAA, NESA or the QCAA.