Multiple choice runs across all four topics. Read every option before you choose: the wrong ones are built from common slips.
Options
Four, one best answer
Our checks
Two timed 20-question multiple-choice checks
What the questions test
Ideas from all four topics, often in a short scenario.
Calculations: Kc, Ksp, pH, Ka, titrations, cell potentials, electrolysis and yield, with the options built from common slips.
Reading data: a table, a graph, a titration curve, a chromatogram or a spectrum table.
Try 2 questions
Question 1
Equilibrium yield of products from gas A: 400 °C and 100 kPa, 22%; 400 °C and 300 kPa, 12%; 600 °C and 100 kPa, 48%; 600 °C and 300 kPa, 31%.
Temperature (°C)
Pressure (kPa)
Equilibrium yield (%)
400
100
22
400
300
12
600
100
48
600
300
31
A gas A decomposes reversibly into gaseous products in a sealed reactor, but the equation is not known. The table gives the equilibrium yield of products under four sets of conditions. Which conclusion do the data support?
Question 2
In a dimly lit laboratory, a student shakes hexane and hex-1-ene separately with orange bromine water at room temperature. Which observation is expected?
How many multiple-choice questions are in the exam?
The syllabus does not publish question counts. It says each paper can ask multiple-choice questions alongside other types, so practise them across all four topics.