ATARMAxxing · Chemistry
QCE Chemistry Practice Questions
64 exam-style questions · full worked solutions
The 64 practice questions inside the QCE Chemistry Mastery Pack, grouped by area of study. Every question comes with a full worked solution.
- Chemical Equilibrium Systems — Equilibrium and Acid-Base Chemistry
- Multiple choice × 12
- Calculate × 2
- Explain × 1
- Analyse × 1
- Oxidation and Reduction — Electrochemistry
- Multiple choice × 12
- Determine and justify × 1
- Construct, label and calculate × 1
- Balance and explain × 1
- Describe, compare and evaluate × 1
- Properties and Structure of Organic Materials
- Multiple choice × 12
- Identify and justify × 1
- Explain × 1
- Construct and explain × 1
- Describe and justify × 1
- Chemical Synthesis and Design
- Multiple choice × 12
- Predict and explain × 1
- Design and justify × 1
- Evaluate × 1
- Analyse and calculate × 1
Sample question
A nitrogen-fertiliser plant runs the Haber process: N₂(g) + 3H₂(g) ⇌ 2NH₃(g). Which expression correctly represents the equilibrium constant Kc for this reaction?
- Kc = [NH₃]² / ([N₂][H₂]³)
- Kc = [N₂][H₂]³ / [NH₃]²
- Kc = 2[NH₃] / ([N₂] + 3[H₂])
- Kc = [NH₃] / ([N₂][H₂])
Show the worked answer
Answer: A
A — Kc is products over reactants, each raised to its stoichiometric coefficient: [NH₃]² / ([N₂][H₂]³).
Included in the QCE Chemistry Mastery Pack
20 full-length practice exams with worked solutions, 20 revision notes, 64 practice questions and 200 flashcards.
Preview a sample note and question free on the QCE Chemistry hub →