If glycerol and methanol were sold at the same price in the market, which would be cheaper for perparing an antifreeze solution for the radiator of an automobile ?

Explanation

Methyl alcohol, `CH_(3)OH` is cheaper because it has lower molecular mass and a given mass of `CH_(3)OH` contains more moles than the same mass of glycerine. More moles of solute means higher molality and therefore, it causes lower freezing point (because `Delta T_(f)` , will be more). In other words, it would take less methyl alcohol to protect a radiator to a given freezing point.