Written Paper
Section I
Question 1 - 2002 HSC
Best conditions for the fermentation of sugars by yeast
Written Paper
Section I
Question 1 - 2001 HSC
Type of reaction when ethene is converted into polyethene
Written Paper
Section I
Question 2 - 2002 HSC
Catalyst for the conversion of ethanol to ethene
Written Paper
Section I
Question 2 - 2001 HSC
Major component of biomass
Written Paper
Section I
Question 3 - 2001 HSC
Equation best representing catalytic cracking of a petroleum fraction
Written Paper
Section I
Question 4 - 2001 HSC
Correct representation of part of a cellulose polymer
Written Paper
Section I
Question 16 - 2002 HSC
(a) Name alkene used in first-hand investigation to compare its reactivity with its corresponding alkane. (b) Outline the procedure used in the investigation. (c) Describe the results obtained and include relevant chemical equations.
Written Paper
Section I
Question 16-18 - 2001 HSC
16. Relate the use of a named radioisotope to its properties. 17(a) Suggest sources of error in heat of combustion experiment. (b) Propose two means of reducing sources of error. (c) Using data given, calculate the molar heat of combustion of ethanol. 18(a) Complete a diagram of a galvanic cell. (b) Calculate the cell's theoretical voltage. (c) Explain why the use of a generator will cause the copper electrode to increase in mass. (Note that part (c) in no longer in the course.)
Written Paper
Section I
Question 17 - 2002 HSC
Explain why alkanes and their corresponding alkenes have similar physical properties, but very different chemical properties.
Written Paper
Section I
Question 18 - 2002 HSC
(a) Name the type of polymerisation shown in the chemical equation. (b) Assess current developments in the use of biopolymers.
Written Paper
Section I
Question 19 - 2002 HSC
(a) Describe the conditions under which a nucleus is unstable. (b) Describe processes by which an unstable isotope undergoes radioactive decay, using a flow diagram showing the sequence of products released during the decay of uranium.
Written Paper
Section I
Question 19-21 - 2001 HSC
19. Name and evaluate the effect of a type of galvanic cell in terms of chemistry and impact on society. 20(a) State one way in which pH can be measured. (b) Explain why solutions of equal concentrations of hydrochloric acid and citric acid have different pH values. 21(a) Name the type of reaction when barium hydroxide and sulfuric acid react. (b) Explain the changes shown in a graph measuring the conductivity of a sample of barium hydroxide when titrated with sulfuric acid. (Note that part (b) is not in the current course.)
Written Paper
Section I
Question 23 - 2010 HSC
(a) Write a balanced equation for the complete combustion of 1-butanol. (b) Given heats of combustion of three fuels in kJg-1 and that of 1-butanol in kJmol-1, justify which fuel is likely to be 1-butanol.
Written Paper
Section I
Question 24 - 2010 HSC
(a) Write an equation using ethene for the hydrogenation of alkenes to convert unsaturated oils into solid fats. (b) Describe a test to confirm that all the ethene has been hydrogenated.
Written Paper
Section I
Question 26 - 2010 HSC
Calculate the volume of gas produced at 25°C and 100kPa when 10g of zinc is placed in 0.50 L of 0.2mol L-1 nitric acid.
Written Paper
Section I
Question 27 - 2010 HSC
Identify the anode, cathode and electrolyte for a given electrochemical cell with its relevant half equations.
Written Paper
Section I
Question 30 - 2010 HSC
(a) Compare the process of polymerisation of ethylene and glucose. (b) Explain the relationship between the structures and properties of three polymers from ethylene and glucose, and their uses.
