Write two differences between order of a reaction and molecularity of a reaction.

Arrange the following:

(i) In increasing order of their basic strength

C₆H₅-NH₂, CH₃-CH₂-NH₂, CH₃-NH-CH₃

(ii) In increasing order of solubility in water

CH₃-NH₂, (CH₃)₃N, CH₃-NH-CH₃

What do you understand by depression of freezing point? Derive the expression between depression of freezing point and molar mass of solute.

Write the structures of the following,

(i) N₂O₅

(ii) BrF₃

Define the following terms

(i) Sorption

(ii) Lyophilic colloids

(iii) Associated colloids