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: 127 indexed questions and parts.
Section B, Question 9
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Question 9 (15 marks) A student designed an experiment to investigate current efficiency during the electrolysis of a sodium chloride, NaCl, solution. Current efficiency is the amo
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ii. What are the safety measures required to reduce the safety risk identified in part b.i.? 1 mark A diagram of the Hoffman electrolysis apparatus, correctly filled as required in
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d. Write the half-equation for the reaction that would be expected to be observed at the negative electrode. 1 mark
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h. Scientists may use scientific posters to convey their research results to other scientists. State two different aspects of the electrolysis experiment that the student should in
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Question 9 Before water treatment authorities release water into the environment, the water is tested to ensure it is safe and meets environmental standards. The concentration of o
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2018 VCE (NHT) Chemistry examinationSection A, Question 11
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Question 11 An aqueous solution of ethanol, CH3CH 2OH, left exposed to the air, will undergo a redox reaction with oxygen, O2 , to form ethanoic acid, CH3COOH. The half-equation fo
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2018 VCE (NHT) Chemistry examinationSection A, Question 26
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Question 26 Organic acids, including vitamin C (ascorbic acid), are present in lemon juice. Since organic acids and vitamin C are weak acids, they will undergo acid-base reactions.
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Question 5 (13 marks) Potassium hydroxide, KOH, is made commercially by the electrolysis of concentrated potassium chloride, KCl, solution. A chemist aims to make a solution of aqu
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iv. Write a balanced equation for the overall reaction that occurs in the electrolysis cell that is consistent with the explanation given in part a.iii. 2 marks
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b. In a commercial electrolysis cell that produces KOH, the two electrodes are separated by a membrane. What is the purpose of this membrane? 1 mark
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Question 6 (10 marks) Redox reactions occur in the human body as well as in electrochemical cells.
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a. Nicotinamide adenine dinucleotide (NAD) is a vital coenzyme for energy production in the human body. It exists in two forms: an oxidised form, NAD+, and a reduced form, NADH. NA
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