Edexcel A-Level Chemistry Paper 1, June 2023
Every question from Edexcel A-Level Chemistry Paper 1, June 2023 (9CH0): 10 questions, 90 marks, each with its mark scheme and topic.
- Question 1 2 marks
Identify a d-block element in Period 4 from a graph of ionisation energy against atomic number and state the meaning of the term d-block element.
Physical Chemistry · Topic 1: Atomic Structure and the Periodic Table
- Question 2 5 marks
State the meaning of an orbital, draw the shapes of s and p orbitals, and identify the electronic configuration of a copper atom.
Physical Chemistry · Topic 1: Atomic Structure and the Periodic Table
- Question 3 9 marks
Answer questions on Group 7 elements covering reactions of potassium bromide with concentrated sulfuric acid, testing for bromide ions using silver nitrate, identifying the shape of the ICl4- ion, and predicting Kc for the dissociation of molten I2Cl6.
Inorganic Chemistry · Physical Chemistry · Topic 4: Inorganic Chemistry and the Periodic Table · Topic 2: Bonding and Structure · Topic 11: Equilibrium II
- Question 4 6 marks
Explain the variations in melting temperature across Period 3 elements (Na, Mg, Al, Si, P) in terms of structure and bonding.
Physical Chemistry · Topic 2: Bonding and Structure
- Question 5 7 marks
Plot a graph of delta G against temperature, calculate the entropy change of the system from the gradient, identify the feature representing the enthalpy change, and determine the effect of increased pressure on the equilibrium position and colour for the decomposition of dinitrogen tetroxide.
Physical Chemistry · Topic 13: Energetics II · Topic 10: Equilibrium I
- Question 6 14 marks
Assess various properties and reactions of benzoic acid including Brønsted-Lowry acid-base behavior, lattice properties of its salts, Ka calculations, indicators, and enthalpy changes of neutralisation.
Physical Chemistry · Inorganic Chemistry · Organic Chemistry · Topic 2: Bonding and Structure · Topic 8: Energetics I · Topic 12: Acid-base Equilibria
- Question 7 13 marks
Assess chromium and chromium compounds by defining isotopes, writing electron configurations, explaining ionisation energies and radii, discussing the acidity of complex ions, and evaluating cell potential feasibility.
Physical Chemistry · Inorganic Chemistry · Topic 1: Atomic Structure and the Periodic Table · Topic 14: Redox II · Topic 15: Transition Metals
- Question 8 6 marks
Compare and contrast the role of platinum and manganese(II) ions as catalysts in their respective reactions.
Inorganic Chemistry · Topic 15: Transition Metals
- Question 9 13 marks
Complete a Born-Haber cycle for silver(I) oxide, explain electron affinities, calculate standard enthalpy of atomisation, state assumptions of theoretical lattice energy, and explain differences between experimental and theoretical lattice energies for silver chloride.
Physical Chemistry · Topic 13: Energetics II · Topic 2: Bonding and Structure
- Question 10 15 marks
Calculate the concentration of dissolved oxygen in river water using titration data, explain its solubility and the instability of Mn3+ ions using electrode potentials.
Physical Chemistry · Inorganic Chemistry · Topic 2: Bonding and Structure · Topic 3: Redox I · Topic 5: Formulae, Equations and Amounts of Substance · Topic 14: Redox II