PracticeVideosBlogFlashcardsEspañol
All Practice Exams

100+ Free VCE Chemistry Practice Questions

Pass your VCE Chemistry Units 3 & 4 (Victorian Certificate of Education) exam on the first try — instant access, no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately
100+ Questions
100% Free

Loading practice questions...

Same family resources

Explore More VCE (Victorian Certificate of Education)

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

VCE Biology (Victoria)

Practice Questions

VCE Legal Studies (Victoria)

Practice Questions

VCE Mathematical Methods (Victoria)

Practice Questions
2026 Statistics

Key Facts: VCE Chemistry Exam

120 marks

Total marks on the VCE Chemistry end-of-year examination

VCAA - VCE Chemistry examination specifications

30 questions

Section A multiple-choice questions, each worth 1 mark (30 marks)

VCAA - VCE Chemistry examination specifications

90 marks

Section B short-answer and extended-response questions

VCAA - VCE Chemistry examination specifications

2 hours 45 minutes

15 minutes reading time plus 2 hours 30 minutes writing time

VCAA - VCE examination timetable

50%

Share of the study score from the end-of-year examination

VCAA - VCE Chemistry Study Design

20% and 30%

Unit 3 and Unit 4 School-assessed Coursework shares of the study score

VCAA - VCE Chemistry Study Design

0 to 50

Study score scale reported for VCE Chemistry

VCAA - VCE Chemistry Study Design

100

Free original Section A-style practice questions here

OpenExamPrep

VCE Chemistry Units 3 and 4 is the Year 12 chemistry course of the Victorian Certificate of Education, examined by the VCAA. The November end-of-year examination is worth 120 marks: Section A has 30 multiple-choice questions (1 mark each, 30 marks) and Section B has short-answer and extended-response questions worth 90 marks, completed in 2 hours 30 minutes of writing time plus 15 minutes reading time. The examination contributes 50% of the study score, alongside Unit 3 School-assessed Coursework (20%) and Unit 4 School-assessed Coursework (30%), with results reported on a 0-50 study score scale. Content spans energy and fuels, electrochemistry, reaction rates and equilibrium, organic chemistry, biomolecules and analytical techniques. This 100-question bank provides original multiple-choice practice modelled on the Section A format.

Sample VCE Chemistry Practice Questions

Try these sample questions to test your VCE Chemistry exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which one of the following best describes an exothermic reaction?
A.The products have a higher chemical potential energy than the reactants
B.Energy is absorbed from the surroundings, so the surroundings cool down
C.The products have a lower chemical potential energy than the reactants, releasing energy
D.The enthalpy change (ΔH) has a positive sign
Explanation: In an exothermic reaction the products store less chemical potential energy than the reactants, so energy is released to the surroundings and ΔH is negative. Combustion of fuels is a classic example.
2The complete combustion of methane is represented by CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(l). Which products are formed?
A.Carbon monoxide and water
B.Carbon dioxide and water
C.Carbon and water vapour
D.Carbon dioxide and hydrogen gas
Explanation: Complete combustion of a hydrocarbon in plenty of oxygen produces carbon dioxide and water. Incomplete combustion (limited oxygen) would instead give carbon monoxide or carbon (soot).
3Which statement about biofuels compared with fossil fuels is correct?
A.Biofuels are non-renewable because they form over millions of years
B.Biofuels such as bioethanol are renewable because their source can be regrown
C.Burning biofuels releases no carbon dioxide at all
D.Fossil fuels are considered carbon neutral over short timescales
Explanation: Biofuels are derived from recently living biomass (e.g. crops) that can be regrown, making them renewable. They are often described as approximately carbon neutral because the CO₂ released on combustion was recently absorbed during photosynthesis.
4A thermochemical equation is written as C(s) + O₂(g) → CO₂(g), ΔH = −394 kJ mol⁻¹. How much energy is released when 0.50 mol of carbon is completely burned?
A.197 kJ
B.394 kJ
C.788 kJ
D.197 kJ absorbed
Explanation: Energy released = 0.50 mol × 394 kJ mol⁻¹ = 197 kJ. The negative ΔH confirms the energy is released (exothermic).
5In an energy profile diagram for an exothermic reaction, which feature represents the activation energy?
A.The difference in energy between reactants and products
B.The energy difference between the reactants and the peak of the curve
C.The total energy of the products
D.The horizontal distance along the reaction coordinate
Explanation: Activation energy (Ea) is the minimum energy needed to reach the transition state, measured from the reactant energy level up to the peak of the energy profile. The reactant-to-product difference is ΔH, not Ea.
6A calorimeter is calibrated by passing 5000 J of electrical energy through it, producing a temperature rise of 2.0 °C. What is the calibration factor of the calorimeter?
A.2500 J °C⁻¹
B.10000 J °C⁻¹
C.0.40 °C J⁻¹
D.2.5 J °C⁻¹
Explanation: The calibration factor (CF) = energy supplied ÷ temperature change = 5000 J ÷ 2.0 °C = 2500 J °C⁻¹. It tells you the energy needed to raise the calorimeter temperature by 1 °C.
7Using a calorimeter with calibration factor 1200 J °C⁻¹, burning a food sample raised the temperature by 3.5 °C. How much energy did the sample release?
A.343 J
B.4200 J
C.342.9 kJ
D.0.0029 J
Explanation: Energy = CF × ΔT = 1200 J °C⁻¹ × 3.5 °C = 4200 J. This is the heat released by the burning sample into the calorimeter.
8Which fuel typically has the highest energy content per gram?
A.Hydrogen gas
B.Ethanol
C.Glucose
D.Methane
Explanation: Hydrogen has an exceptionally high energy content per gram (about 142 kJ g⁻¹) because of its very low molar mass and the large energy released forming water. Hydrocarbons and oxygenated fuels release less energy per gram.
9The molar heat of combustion of ethanol (C₂H₅OH, M = 46.0 g mol⁻¹) is 1364 kJ mol⁻¹. How much energy is released when 9.2 g of ethanol is completely burned?
A.136 kJ
B.273 kJ
C.1364 kJ
D.6820 kJ
Explanation: n(ethanol) = 9.2 / 46.0 = 0.20 mol. Energy = 0.20 × 1364 = 273 kJ. Always convert mass to moles before applying the molar heat of combustion.
10Why does incomplete combustion of a hydrocarbon fuel release less energy per mole than complete combustion?
A.The products carbon monoxide and carbon still contain chemical potential energy that could be released
B.Incomplete combustion produces more carbon dioxide
C.Incomplete combustion requires more oxygen
D.Water is not formed during incomplete combustion
Explanation: In incomplete combustion the carbon is only partially oxidised to CO or C, which still hold chemical potential energy. Because not all of that energy is released, less energy is liberated per mole of fuel than in complete combustion to CO₂.

About the VCE Chemistry Exam

VCE Chemistry Units 3 and 4 is the Year 12 senior secondary chemistry sequence of the Victorian Certificate of Education, set and examined by the Victorian Curriculum and Assessment Authority (VCAA). Unit 3, 'How can design and innovation help to optimise chemical processes?', covers the supply of energy (fuels, thermochemistry and electrochemistry - galvanic, fuel, rechargeable and electrolytic cells) and how the rate and yield of reactions are optimised (rates, catalysts, dynamic equilibrium and Le Chatelier's principle). Unit 4, 'How are carbon-based compounds designed for purpose?', covers organic chemistry - functional groups, nomenclature, isomers, reactions and reaction pathways - and the analysis and use of organic compounds, including chromatography, mass and IR and NMR spectroscopy, volumetric analysis, and the chemistry of proteins, carbohydrates and fats. The end-of-year examination has a 30-question multiple-choice Section A and a short-answer and extended-response Section B, and contributes 50% of the study score.

Assessment

End-of-year written examination of 120 marks: Section A has 30 multiple-choice questions worth 1 mark each (30 marks); Section B has short-answer and extended-response questions worth 90 marks.

Time Limit

2 hours 45 minutes total: 15 minutes reading time and 2 hours 30 minutes writing time.

Passing Score

No fixed pass mark. The examination is worth 50% of the study score, with Unit 3 SAC (20%) and Unit 4 SAC (30%) making up the rest; results are reported as a 0-50 study score based on statewide relative performance.

Exam Fee

There is no separate examination fee; VCE costs are paid through the student's school as part of VCE enrolment and student fees, which vary by school and concession status. (Victorian Curriculum and Assessment Authority (VCAA))

VCE Chemistry Exam Content Outline

25%

Energy, fuels and thermochemistry

Unit 3 AOS1 energy supply: combustion of fuels, fossil fuels versus biofuels, thermochemical equations and energy profile diagrams, calorimetry and calibration, energy content of fuels and foods, and comparing fuels quantitatively. Practice covers exothermic and endothermic reactions, bond energy, enthalpy and calorimetry calculations.

18%

Redox and electrochemistry

Unit 3 AOS1 electrochemistry: redox half-equations and the electrochemical series, galvanic cells and cell notation, fuel cells and rechargeable cells, electrolytic cells and electroplating, and Faraday's laws. Practice covers identifying oxidants and reductants, predicting spontaneous reactions, EMF, and quantitative electrolysis (Q = It, n = Q/F).

17%

Rates and equilibrium

Unit 3 AOS2 rate and yield: collision theory, factors affecting reaction rate, catalysts and Maxwell-Boltzmann distributions, dynamic equilibrium, the equilibrium constant Kc and Le Chatelier's principle. Practice covers predicting the effect of changes in concentration, pressure, volume and temperature on rate, position of equilibrium and Kc.

24%

Organic chemistry

Unit 4 AOS1 organic compounds: functional groups and homologous series, IUPAC nomenclature, structural and stereo isomers, and organic reactions including substitution, addition, oxidation of alcohols, esterification and hydrolysis. Practice covers identifying functional groups, naming compounds, drawing isomers and constructing reaction pathways.

16%

Analysis and biomolecules

Unit 4 AOS2 analysis and use: chromatography (TLC, HPLC), mass spectrometry, infrared and proton/carbon NMR spectroscopy, volumetric analysis and titrations, and the chemistry of proteins, carbohydrates and fats and oils. Practice covers interpreting spectra and chromatograms, titration calculations, and the structure and reactions of biomolecules.

How to Pass the VCE Chemistry Exam

What You Need to Know

  • Passing score: No fixed pass mark. The examination is worth 50% of the study score, with Unit 3 SAC (20%) and Unit 4 SAC (30%) making up the rest; results are reported as a 0-50 study score based on statewide relative performance.
  • Assessment: End-of-year written examination of 120 marks: Section A has 30 multiple-choice questions worth 1 mark each (30 marks); Section B has short-answer and extended-response questions worth 90 marks.
  • Time limit: 2 hours 45 minutes total: 15 minutes reading time and 2 hours 30 minutes writing time.
  • Exam fee: There is no separate examination fee; VCE costs are paid through the student's school as part of VCE enrolment and student fees, which vary by school and concession status.

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

VCE Chemistry Study Tips from Top Performers

1Master the Chemistry Data Book before the exam: know where to find the electrochemical series, relative atomic masses, the periodic table, and the IR, NMR and mass-spectrometry data tables so you do not waste time searching.
2For electrochemistry, write balanced half-equations every time and use the electrochemical series to identify the strongest oxidant and reductant; remember that in galvanic cells the anode is the site of oxidation and in electrolytic cells the polarity is reversed.
3Practise quantitative electrolysis with Q = It and n(e-) = Q/F (F = 96 500 C per mol), and link moles of electrons to moles of product through the half-equation.
4For equilibrium, separate the effect of a change on rate, on the position of equilibrium, and on the value of Kc; only temperature changes Kc, while concentration, pressure and volume changes shift position without changing Kc.
5Learn the organic reaction pathway map (alkane to haloalkane to alcohol to carboxylic acid, plus esterification) so you can fill in reagents, conditions and products for multi-step synthesis questions.
6Work past VCAA examinations under timed conditions and read each examination report to see how assessors expected answers to be phrased and which distractors commonly caught students.

Frequently Asked Questions

How is the VCE Chemistry exam structured?

The end-of-year examination is worth 120 marks. Section A has 30 multiple-choice questions worth 1 mark each (30 marks), and Section B has short-answer and extended-response questions worth 90 marks. Both sections cover Units 3 and 4 content.

How long is the VCE Chemistry exam?

The examination runs for 2 hours 45 minutes in total: 15 minutes of reading time followed by 2 hours 30 minutes of writing time. It is held during the November VCE examination period.

What is a passing score in VCE Chemistry?

There is no fixed pass mark. The examination contributes 50% of the study score, with Unit 3 School-assessed Coursework (20%) and Unit 4 School-assessed Coursework (30%) making up the rest. Results are reported as a study score from 0 to 50 based on statewide relative performance.

What topics are covered in VCE Chemistry Units 3 and 4?

Unit 3 covers energy supply (fuels, thermochemistry and electrochemistry) and optimising rate and yield (rates and equilibrium). Unit 4 covers organic chemistry - functional groups, nomenclature, isomers, reactions and pathways - and the analysis and use of organic compounds, including spectroscopy, chromatography, titrations and biomolecules.

Can I use a calculator and data book in the exam?

Yes. Students may use an approved scientific calculator and are supplied with the VCAA VCE Chemistry Data Book, which contains constants, the periodic table, the electrochemical series, formulas and spectroscopic data tables.

Are these official VCAA exam questions?

No. These are original OpenExamPrep practice questions modelled on the Section A multiple-choice format and the current VCE Chemistry Study Design. The VCAA publishes official past examinations, examination reports and the Data Book separately.