OCR A-Level Chemistry AS Breadth in chemistry (01), June 2022
Every question from OCR A-Level Chemistry AS Breadth in chemistry (01), June 2022 (H032): 26 questions, 70 marks, each with its mark scheme and topic.
- Question 1 1 mark
Identify which substance forms a giant covalent lattice structure in the solid state from a given list of four substances.
Module 2: Foundations in chemistry · Module 3: Periodic table and energy · 2.2 Electrons, bonding and structure · 3.1 The periodic table
- Question 2 1 mark
Identify the correct definition of the term electronegativity from the given options.
Module 2: Foundations in chemistry · 2.2 Electrons, bonding and structure
- Question 3 1 mark
Identify which of the given compounds is an alkali
Module 2: Foundations in chemistry · 2.1 Atoms and reactions
- Question 4 1 mark
Determine the number of paired orbitals in a sulfur atom
Module 2: Foundations in chemistry · 2.2 Electrons, bonding and structure
- Question 5 1 mark
Identify which of the given period 3 or 4 elements (S, P, Cl, Ar) has the lowest melting point
Module 3: Periodic table and energy · Module 2: Foundations in chemistry · 3.1 The periodic table · 2.2 Electrons, bonding and structure
- Question 6 1 mark
Deduce the formula of the chloride formed when a Period 3 element X reacts with chlorine, using the given successive ionisation energies.
Module 2: Foundations in chemistry · Module 3: Periodic table and energy · 2.1 Atoms and reactions · 2.2 Electrons, bonding and structure · 3.1 The periodic table
- Question 7 1 mark
Calculate the mass of lead(II) sulfate decomposed to form 2.40 g of oxygen gas given a chemical equation and molar mass.
Module 2: Foundations in chemistry · 2.1 Atoms and reactions
- Question 8 1 mark
Calculate the volume of concentrated hydrochloric acid required to prepare a diluted solution of specified concentration and volume.
Module 2: Foundations in chemistry · 2.1 Atoms and reactions
- Question 9 1 mark
Calculate the total number of ions in 4.00 mol of magnesium chloride, MgCl2.
Module 2: Foundations in chemistry · 2.1 Atoms and reactions
- Question 10 1 mark
Identify the correct explanation for the trend in boiling points of chlorine, bromine, and iodine down Group 7.
Module 3: Periodic table and energy · 3.1 The periodic table
- Question 11 1 mark
Calculate the standard enthalpy change of combustion of hydrazine using given standard enthalpy changes of formation data.
Module 3: Periodic table and energy · 3.2 Physical chemistry
- Question 12 1 mark
Identify which prediction can be made using Le Chatelier's principle from the given choices.
Module 3: Periodic table and energy · 3.2 Physical chemistry
- Question 13 1 mark
Identify which of the four given equilibrium reactions has a numerical Kc value of 0.01 when the concentration of each gas in the equilibrium mixtures is 0.1 mol dm-3.
Module 5: Physical chemistry and transition elements · 5.1 Rates, equilibrium and pH
- Question 14 1 mark
Determine the number of sigma bonds in the given organic molecule.
Module 4: Core organic chemistry · 4.1 Basic concepts and hydrocarbons
- Question 15 1 mark
Determine the number of hydrogen atoms in one molecule of the given organic compound containing a carbonyl group, an alcohol group, and an alkene group.
Module 4: Core organic chemistry · 4.1 Basic concepts and hydrocarbons · 4.2 Alcohols, haloalkanes and analysis
- Question 16 1 mark
Identify the alkane that undergoes complete combustion to form 30 cm3 of carbon dioxide and 40 cm3 of water vapour under the same conditions.
Module 2: Foundations in chemistry · Module 4: Core organic chemistry · 2.1 Atoms and reactions · 4.1 Basic concepts and hydrocarbons
- Question 17 1 mark
Identify which alkene is an E stereoisomer from four given structural formulae.
Module 4: Core organic chemistry · 4.1 Basic concepts and hydrocarbons
- Question 18 1 mark
Identify the statement that explains why 1-chlorobutane is hydrolysed at a slower rate than 1-bromobutane with aqueous sodium hydroxide.
Module 4: Core organic chemistry · 4.2 Alcohols, haloalkanes and analysis
- Question 19 1 mark
Identify the organic compound that produced the given infrared spectrum from four structural formula options.
Module 4: Core organic chemistry · Module 6: Organic chemistry and analysis · 4.2 Alcohols, haloalkanes and analysis · 6.3 Analysis
- Question 20 1 mark
Identify which isomeric alcohol is likely to produce fragment ions at m/z = 15, 29, and 43 in its mass spectrum.
Module 4: Core organic chemistry · 4.2 Alcohols, haloalkanes and analysis
- Question 21 8 marks
Name the alkene (CH3)3CCH=CH2, outline its reaction mechanism with bromine including curly arrows and the intermediate, draw a repeat unit of its polymer, and state an advantage and disadvantage of polymer combustion.
Module 4: Core organic chemistry · Module 6: Organic chemistry and analysis · 4.1 Basic concepts and hydrocarbons · 6.2 Nitrogen compounds, polymers and synthesis
- Question 22 7 marks
Calculate the relative atomic mass of osmium from a mass spectrum, complete a table on atomic structure and electron configurations, and determine the empirical formula of a hydrated salt.
Module 2: Foundations in chemistry · 2.1 Atoms and reactions · 2.2 Electrons, bonding and structure
- Question 23 9 marks
Describe ionic and metallic bonding, complete a magnesium sulfide lattice diagram, and name/formula oxyanions with oxidation states.
Module 2: Foundations in chemistry · 2.2 Electrons, bonding and structure · 2.1 Atoms and reactions
- Question 24 9 marks
Explain disproportionation of chlorine with sodium hydroxide and identify unknown halide compounds B and C using test-tube tests and molar mass data.
Module 2: Foundations in chemistry · Module 3: Periodic table and energy · Practical Activity Groups · PAG 4: Qualitative analysis of ions · PAG 1: Moles determination · 2.1 Atoms and reactions · 3.1 The periodic table
- Question 25 9 marks
Calculate the enthalpy change of reaction for barium hydroxide and nitric acid, explain why it is not the enthalpy change of neutralisation, and analyze a Boltzmann distribution curve for reaction rate.
Module 3: Periodic table and energy · Practical Activity Groups · 3.2 Physical chemistry · PAG 3: Enthalpy determination
- Question 26 8 marks
Outline the mechanism for the hydrolysis of 1-chloropropane with sodium hydroxide, and use ideal gas equation data to determine the molar mass and molecular formula of bromoalkane D.
Module 2: Foundations in chemistry · Module 4: Core organic chemistry · 2.1 Atoms and reactions · 4.2 Alcohols, haloalkanes and analysis