Distinguish between a saturated, an unsaturated and a supersaturated solution.
Water
Original Khojo Papers practice question — not from a past board paper.
A solute is the substance that dissolves; a solvent is the substance in which it dissolves; and a solution is the homogeneous mixture of the two. A saturated solution is one that can dissolve no more of the solute at that temperature.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
A supersaturated solution holds more than the saturation amount and is unstable.
From the same topic and chapter, at a similar level.
Distinguish between a saturated, an unsaturated and a supersaturated solution.
Water
Why is water called a universal solvent?
Water
Distinguish between a hydrated and an anhydrous salt, and state what happens when blue copper sulphate crystals are heated.
Water
Define solubility and state two factors that affect the solubility of a solid in water.
Water
Define efflorescence, deliquescence and hygroscopy, giving one example of each.
Water
The solubility of potassium nitrate at 30 °C is 45 g per 100 g of water. What mass of the salt will saturate 250 g of water at that temperature?
Water