0.01 M solution each of urea, common salt and Na₂SO₄ are taken, the ratio of depression of freezing point is

f f T iK m since the concentration is same, so depression on value of i Van’t Hoff factors Urea=1 common salt = 2 sodium sulfate = 3 2 4 : : 1: 2 : 3 Urea NaCl Na SO