When 5.85 g of NaCl and 6 g of urea are dissolved in 1000 g of water, the freezing point gets depressed by Kf for water is 1.86
1.86
0.186
0.372
0.558
The molal depression constant for water is 1.86Kkg/mol. If 0.5 mole of sucrose is dissolved in 500g of water the freezing point is depressed by