Ideal and Non-ideal Solutions

Suggest the most important type of intermolecular attractive interaction in the following pair:

I₂ and CCl₄

Intermolecular forces between two benzene molecules are nearly of same strength as those between two toluene molecules. For a mixture of benzene and toluene, which of the following are not true?

(i) ∆_mix H = zero

(ii) ∆_mix V = zero

(iii) These will form minimum boiling azeotrope.

(iv) These will not form ideal solution.

Concentration terms such as mass percentage, ppm, mole fraction and molality are independent of temperature, however molarity is a function of temperature. Explain.

What type of intermolecular attractive interaction exists in the pair of methanol and acetone?

Two liquids X and Y on mixing gives a warm solution. The solution is ______.

Fill in the blanks by choosing the appropriate word/words from those given in the brackets: 

Ideal solutions obey ………. law and they …………. form azeotropic mixtures.

(Henry’s, aldol condensation, absence, do not, ohm, Raoult’s, increases, common ion effect, easily, three, solubility product, ohm^-1, two, four, ohm^-1, cm², Cannizzaro, ohm^-1 cm^-1, zero, decreases, presence)

Suggest the most important type of intermolecular attractive interaction in the following pair.

NaClO₄ and water

Which solution has the lower freezing point? 10 g of methanol (CH₃OH) in 100g g of water (or) 20 g of ethanol (C₂H₅OH) in 200 g of water.