AS & A Level Chemistry (9701) — October–November 2024, Paper 53
2 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Question 1 · 13 marks · Practical skills (safety precautions)
Alkaline aqueous iodine is irritating to the skin and eyes. Identify an appropriate precaution, other than eye protection and a lab coat, that the student should take when using…
Answer this question and get it marked →Question 2 · 17 marks · Practical skills (colorimetry)
Using the absorbance-against-wavelength graph in Fig. 2.1, suggest the best wavelength of light to use in the colorimeter when measuring the concentration of C25H30N3Cl(aq).
Answer this question and get it marked →← February–March 2023 Paper 12 · October–November 2024 Paper 52 →