JEE Main 2011Annual, Paper 1ChemistryMediumSolutions71× since 2002
Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be
added to 4 kg of water to prevent it from freezing at −6^oC will be :
[K_f for water = 1.86 K kg mol−1 , and molar mass of ethylene glycol = 62 g mol−1 )