CSEC Chemistry · January 2019 · Paper 1 · Question Q4

The salt whose solubility changes to the GREATEST extent in the temperature range 0\ ^\circ\text{C} to 60\ ^\circ\text{C} is

1. (A)sodium chloride
2. (B)potassium nitrate
3. (C)potassium sulfate
4. (D)hydrated copper(II) sulfate

This question uses a figure or table from the paper — you'll see it when you practise.