OCR A-Level Chemistry AS Depth in chemistry (02), June 2019
Every question from OCR A-Level Chemistry AS Depth in chemistry (02), June 2019 (H032): 5 questions, 70 marks, each with its mark scheme and topic.
- Question 1 18 marks
Assess the properties and reactions of the Group 2 element strontium, covering relative atomic mass, metallic bonding, reaction with water, and water of crystallisation calculations.
Module 2: Foundations in chemistry · Module 3: Periodic table and energy · Practical Activity Groups · PAG 1: Moles determination · 2.1 Atoms and reactions · 2.2 Electrons, bonding and structure · 3.1 The periodic table
- Question 2 11 marks
Describe the preparation of a magnesium nitrate solution, calculate the volume of nitric acid needed to react with magnesium carbonate, and determine oxidation numbers in thermal decomposition.
Module 2: Foundations in chemistry · Practical Activity Groups · PAG 1: Moles determination · 2.1 Atoms and reactions
- Question 3 12 marks
Outline the mechanism for the hydrolysis of 1-iodopentane, compare rates of haloalkane hydrolysis, analyze its mass spectrum, and draw the structure of an isomer.
Module 4: Core organic chemistry · Module 6: Organic chemistry and analysis · 4.2 Alcohols, haloalkanes and analysis · 6.3 Analysis
- Question 4 13 marks
Calculate the volume of hydrogen produced from the reaction of zinc with hydrochloric acid, plot experimental rate data on a grid, sketch a new rate curve, and explain rate factors using collision theory and catalysis.
Module 2: Foundations in chemistry · Module 3: Periodic table and energy · Practical Activity Groups · Module 5: Physical chemistry and transition elements · PAG 9: Rates of reaction – continuous monitoring method · 5.3 Transition elements · 2.1 Atoms and reactions · 3.2 Physical chemistry
- Question 5 16 marks
Analyze the reactions, preparation, purification, yield, and polymerisation of hex-1-ene including stoichiometric calculations and organic practical procedures.
Module 1: Development of practical skills in chemistry · Module 2: Foundations in chemistry · Module 4: Core organic chemistry · Module 6: Organic chemistry and analysis · Practical Activity Groups · PAG 1: Moles determination · PAG 5: Synthesis of an organic liquid · PAG 6: Synthesis of an organic solid · PAG 7: Qualitative analysis of organic functional groups · 2.1 Atoms and reactions · 4.1 Basic concepts and hydrocarbons · 4.2 Alcohols, haloalkanes and analysis · 6.2 Nitrogen compounds, polymers and synthesis