Addition of impurity into water lowers the freezing point of water.

Each question contains STATEMENT-I(Assertion) and STATEMENT-2(Reason).the statement carefully and mark the correct answer according to the instruction given below: STATEMENT - 1 : addition of ethylene glycol to water lowers the freezing point of water, therefore, used as antifreeze substance. STATEMENT - 2 : Ethylene glycol is soluble in water.

These questions consists of two statements each, printed as Statement-I and Statement-II. While answering these Questions you are required to choose any one of the following four responses. Statement-I: Addition of ethylene glycol(non-volatile)to water lowers the freezing point of water hence used as antifreeze. Statement-II: Addition of any substance to water lowers its freezing point.

2 g of sugar is added to one litre of water to give sugar solution. What is the effect of addition of sugar on the boiling point and freezing point of water ?

What is the effect of the addition of sugar on the boiling and freezing points of water?

Explain in why on addition of 1 moe of NaCl to 1L of water, the boiling point of water increases, while addition of 1 mole of methyl alcohol to 1 L of water decreases its boilbing point .

A certain substance A tetramerizes in water to the extent of 80% . A solution of 2.5 g of A in 100 g of water lowers the freezing point by 0.3^(@)C . The molar mass of A is a. 120 , b. 61 ,c. 60 ,d. 62

Compare the weigths of methanol and glycerol, which would be required separately to lower the freezing point of one Kg water by 10^@ .

What mass of ethlene ethyelne glycol ("molar mass"=62 g mol^(-1)) must be dissolved in 5.5kg of water to lower the freezing point of from 0^(@)C to-10^(@)C ? (K_(f)) for water=1.86 K kg mol^(-1) ).

What is the effect of pressure on the boiling point and freezing point of water.

A certain mass of substance in 10 g of benzene lowers the freezing point by 1.28^(@)C and in 100 g of water lowers the freezing point by 1.395^(@)C separately. If the substance has normal molecular weight in benzene and completely dissociated in water, calculate number of moles of ions formed by its 1 mole dissociation in water (K_(f_("water"))=1.86, K_(f_("benzene"))=5.00)