AQA Chemistry

This document covers the full AQA A-Level Chemistry specification, including organic, inorganic, and physical chemistry topics. It is designed as a comprehensive revision and exam preparation resource, supporting understanding of core concepts, practical skills, and exam technique across all AQA Chemistry papers.

AQA-7404-2-CHEMISTRY FINAL MARK SCHEME PAPER 2-AS LEVEL-ORGANIC AND PHYSICAL CHEMISTRY-Jun24-v1.0 01.1 Row 1 = no (visible) change/reaction / stays orange/yellow Row 2 = name or formula of a (hydrogen)carbonate (e.g. Na2CO3, NaHCO3, CaCO3) OR name or formula of reactive metal (e.g. Mg, Na) Row 3 = no (visible) change/reaction / stays blue Row 1 – allow stays brown (ignore red) Row 2 – name or formula, but formula must be correct if given (even if correct name also given); ...

AQA-7404-1-CHEMISTRY FINAL MARK SCHEME PAPER 1-AS LEVEL-INORGANIC AND PHYSICAL CHEMISTRY-Jun24. Question Marking guidance Additional Comments/Guidelines Mark 01.1 Iodide ion / I – Br2 + 2 I –→ I2 + 2Br– not iodine / I / I2 allow: Br2 + 3 I –→ I3 – + 2Br– ignore state symbols; accept multiples 2 (2 x AO3) Question Marking guidance Additional Comments/Guidelines Mark 01.2 Bromine not a strong enough oxidising agent to displace chlorine (so no visible cha...

0 1 This question is about the analysis of organic compounds. 0 1 . 1 Table 1 shows the results of chemical tests on three organic compounds. Complete the empty boxes in the table. Table 1 Chemical test Add bromine water orange to colourless no visible change no visible change bubbles of gas no visible change Warm with Fehling’s solution no visible change no visible change [3 marks] Page 2 of 36 CHEMISTRY 3 *03* Turn over ► IB/M/Jun24/7404/2 Do not write o...

AQA-7405-2-CHEMISTRY FINAL MARK SCHEME PAPER 2-ORGANIC AND PHYSICAL CHEMISTRY-Jun24-LATEST YEAR VERSION.

AQA-7404-1-CHEMISTRY QUESTION PAPER 1-AS LEVEL-INORGANIC AND PHYSICAL CHEMISTRY-14May24. 0 1 A student does a series of reactions with aqueous solutions of some potassium halides (P, Q and R) of equal concentration. Each solution contains a different halide ion (chloride, bromide or iodide). The student adds 3 drops of bromine water to 3 drops of each aqueous solution of potassium halide. The student also adds 3 drops of the bromine water to 3 drops of water. Table 1 shows the student...

AQA-7405-3-CHEMISTRY FINAL MARK SCHEME PAPER 3-A LEVEL-Jun24-v1.0. Question Answers Additional comments/Guidelines Mark 1.1 M1 skeletal formula of organic product M2 rest of equation M1 Need H on alcohol OH M1 Allow O–H for alcohol OH M2 for correct formulae for 2-hydroxybenzenecarboxylic acid and methanol on left and H2O on right M2 Allow C7H6O3/HOC6H4COOH and CH4O Ignore additional non-skeletal structures for ester (assume it is working out) Allow Kekulé structures f...

AQA-7405-1-CHEMISTRY FINAL MARK SCHEME PAPER 1-A LEVEL-INORGANIC AND PHYSICAL CHEMISTRY-Jun24-v1.O. Question Answers Additional comments/Guidelines Mark 01.1 B/ Boron any 2 from: protons in the centre of the atom/nucleus electrons are in shells/energy levels (around the nucleus) neutrons in the centre of the atom/nucleus most of the atom is empty space/most of mass in nucleus 3 (3 x AO1) Question Answers Additional comments/Guidelines Mark 01.2 Definition Average / mean mass of ...

AQA-7405-3-CHEMISTRY QUESTION PAPER 3-A LEVEL-21Jun2024. 0 1 The structure of 2-hydroxybenzenecarboxylic acid is shown. 0 1 . 1 Give the equation for the reaction of 2-hydroxybenzenecarboxylic acid with methanol. In your equation, include the skeletal formula of the organic product. [2 marks] Aspirin is produced from 2-hydroxybenzenecarboxylic acid by reaction with ethanoic anhydride in the presence of concentrated phosphoric acid. Method 1. Add 2-hydroxybenzenecarboxylic acid to a con...

AQA-7405-2-CHEMISTRY QUESTION PAPER 2-A LEVEL-ORGANIC AND PHYSICAL CHEMISTRY-18Jun24.HIGHLY GRADED. 0 1 Propanone reacts with bromine in alkaline conditions. CH3COCH3 + Br2 + OH– ⟶ CH3COCH2Br + Br– + H2O The rate equation for this reaction is Rate = k [CH3COCH3] [OH] 0 1 . 1 Sketch a graph on the axes provided to show how, at constant temperature, the concentration of bromine changes during this reaction. [1 mark] *03* Turn over ► IB/M/Jun24/7405/2 Do not write outsid...

AQA-7405-1-CHEMISTRY QUESTION PAPER 1-A-LEVEL-INORGANIC AND PHYSICAL CHEMISTRY-10Jun24. 0 1 This question is about atomic structure. 0 1 . 1 In 1897 JJ Thomson discovered the electron. He suggested that atoms were positively charged spheres with electrons embedded within them. Figure 1 represents an atom using Thomson’s model. Figure 1 Suggest the identity of this atom. Give two differences between the modern model of an atom and the Thomson model of an atom. [3 marks] Identity Di...

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