VCE Chemistry Past Exam Questions
Browse VCE Chemistry exam questions from 2015–2026, including NHT and VCE papers. Filter by topic, year and paper; open the original source.
Matching results: 2,037 indexed questions and parts.
Section B, Question 4(c)(ii)Question part (c)(ii)
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ii. The atom economy for the process is 15% and the percentage yield is 70%. Suggest two reasons why this reaction could be considered an unsustainable method of producing H 2 . Ou
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2026 VCE (NHT) Chemistry examination (PDF, 2.83 MB)Section B, Question 5
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Question 5 (8 marks) In 2025, South Australia experienced a harmful algal bloom along its coast. Algae produce toxins hazardous to marine life and can cause health issues. Algae pr
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2026 VCE (NHT) Chemistry examination (PDF, 2.83 MB)Section B, Question 5(a)Question part (a)
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a. Identify the chiral centre(s) on the DHPS molecule below using an asterisk(s). 1 mark HO OH SO3 – To develop strategies to reduce the algal blooms, Fred, a researcher, investiga
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b. State the new functional group in structure Y formed from structure X. 1 mark
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c. When trying to isolate structures X and Z, Fred needs to ensure that the isolated compound is pure and not a mixture. Explain why a melting point determination would not disting
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2026 VCE (NHT) Chemistry examination (PDF, 2.83 MB)Section B, Question 5(d)Question part (d)
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d. The DHPS reaction pathway shown on page 26 requires a protein-based enzyme. Fred found that the amino acid alanine, Ala, is part of the enzyme.
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2026 VCE (NHT) Chemistry examination (PDF, 2.83 MB)Section B, Question 5(d)(i)Question part (d)(i)
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i. Draw the expected structure of Ala in a neutral aqueous solution. 1 mark
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2026 VCE (NHT) Chemistry examination (PDF, 2.83 MB)Section B, Question 5(d)(ii)Question part (d)(ii)
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ii. The enzyme also contains the amino acid arginine, Arg. Both the Ala and Arg residues interact with DHPS in an aqueous solution. Discuss why the Arg residue has a stronger inter
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e. Fred is examining ways to reduce the size of the algal bloom by stopping the enzyme from functioning in the pathway. What could disrupt the functioning of an enzyme? 1 mark
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Question 6 (12 marks) Cinnamon is a spice commonly used around the world in cooking as well as in traditional and herbal medicine. It is made from the dried inner bark of the cinna
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a. Name one method that can be used to extract these natural plant compounds from the bark. 1 mark
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b. Using the HPLC chromatograms above, compare the relative amount of coumarin in samples V and W. Justify your response. 2 marks Compound Q has a molecular formula of C 9 H 8 O. S
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2026 VCE (NHT) Chemistry examination (PDF, 2.83 MB)How to use ClassConnect past exam questions
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