Statement (iii) is correct because it accurately defines a saturated solution. The chapter states that a saturated solution is one where 'no more of it can be dissolved at that temperature.' Statement (i) is incorrect because a saturated solution cannot dissolve more solute at that temperature. Statement (ii) is incorrect because an unsaturated solution has NOT dissolved the maximum amount—it can still dissolve more solute. Statement (iv) is incorrect because saturated solutions can form at any temperature, not just high temperatures.