1)In complex compounds , metal atoms acts as lewis acids and ligands acts as lewis base

 

 

2)HClO₄ is the strongest while HCN is the weakest hydracid known .. CsOH is strongest base known

 

 

3)Protophilic solvents-- wich have tendency to accept proton i.e water alchohol

 

 

4)Protogenic -- wich hav tendency to  produce protons

i.e glacial acetic acids

 

5)Differntiating solvent - wich ionises the acids and bases to diff. extents

 

 

6)Levelling effect of water -- In water all acids stronger than H₃O⁺ appear =ally strong similarly a no. of bases behave as =ually strong in water

 

 

7)Isohydric solutions--If the conc. of common ions in da sol. of 2 electrolytes is same then on mixing them, there is no change in degree of dissociation of either electrolytes . these are called isohydric solutions

 

 

8)Ostwald dilution law is only applicable fr weak electrolytes