Write the structures of the following,

(i) N₂O₅

(ii) BrF₃

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

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

Define the following terms

(i) Sorption

(ii) Lyophilic colloids

(iii) Associated colloids

(i) Indicate the principle behind the method used for the refining of Zirconium.

(ii)What is the role of CO in the extraction of iron?

(iii)What is ‘copper matte’