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what is the order of solubility product of 2 nd group elements in florides

what is the order of solubility product of 2 nd group elements in florides
 

Grade:10

2 Answers

Arun
25750 Points
4 years ago
BeF2 is very soluble in water due to the high hydration energy of the small Be+2ion. The other fluorides (MgF2, CaF2, SrF2 and BaF2) are almost insoluble in water. Since on descending the group lattice energy decreases more rapidly than the hydration energy. Therefore whatever little solubility these fluorides have that increase down the group
Vikas TU
14149 Points
4 years ago
Dear student 
Solubility increases ascending from Be to Ra.
Be(OH)2 is amphotheric and soluble both in acid/alkaline, but slightly soluble in water.
Its pOH is approximately 3.5 (pH = 10.5 appx.). So it is soluble in pure water
Hope this helps 
Good Luck 

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