A glass of (1) tap water, (2) distilled water and (3) sea water is cooled to its solidification. The order in which they will solidify first is

Explanation

Distilled Water: Distilled water is pure and has no impurities or salts, which means it can freeze at 0 C (32 F), the normal freezing point for pure water. Tap Water: Tap water, which typically contains various dissolved minerals and impurities, will freeze after distilled water. Sea Water: Sea water contains a significant amount of dissolved salts and impurities. As a result, it has a lower freezing point than pure water. Sea water freezes at a lower temperature, typically around -2 C (28 F) to -1.8 C (28.8 F), due to the presence of salts. So distilled water will solidify first, followed by tap water (if it's relatively pure), and sea water will solidify last due to its lower freezing point caused by the dissolved salts. Hence option D is correct. A_Solutions_and_their_Physical_Properties/13.08%3A_Freezing-Point_Depression_and_Boiling Point_Elevation_of_Nonelectrolyte_Solutions