AS & A Level Chemistry (9701) — May–June 2024, Paper 21
6 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Question 1 · 10 marks · Group 17 (the halogens)
The elements of Group 17 are called halogens. Complete Table 1.1. Table 1.1 halogen colour at 293 K --- --- chlorine bromine iodine
Answer this question and get it marked →Question 2 · 12 marks · Period 3 chemistry (reactions of chlorides with water)
Sulfur chloride, SCl2, is a liquid at room temperature. When SCl2 is added to water, misty fumes are seen and a solution is made that turns universal indicator red. Identify the…
Answer this question and get it marked →Question 3 · 9 marks · Equilibria (Le Chatelier's principle)
Define Le Chatelier's principle.
Answer this question and get it marked →Question 4 · 6 marks · Chemical energetics (enthalpy change of formation)
Define enthalpy change of formation.
Answer this question and get it marked →Question 5 · 9 marks · Chemical bonding (covalent bonding)
Hydrocarbon molecules contain covalent bonds. Define covalent bond.
Answer this question and get it marked →Question 6 · 14 marks · Isomerism (stereoisomerism)
V shows stereoisomerism (see Fig. 6.1). Explain what is meant by stereoisomerism.
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