‘Crystalline solids are anisotropic in nature’. What does this statement mean?

Define electrophoresis ? 

Draw the structure of XeF₂ molecule. 

The chemistry of corrosion of iron is essentially an electrochemical phenomenon. Explain the reactions occurring during the corrosion of iron in the atmosphere.

6.

Determine the values of equilibrium constant (K_C) and  G° for the following reaction: 

State reasons for each of the following: 

The N-O bond in  is shorter than the N-O bond in 

State reasons for each of the following: 

SF₆ is kinetically an inert substance. 

State reasons for each of the following: 

(i) All the P-Cl bonds in PCl₅ molecule are not equivalent. 

(ii) Sulphur has a greater tendency for catenation than oxygen.