Which of the following has the highest solubility product?
A) LiOH
B) CsOH
C) KOH
D) RbOH


Why is CsOHthe correct asnwer when hydration enthalpy of Lithium is the highest?

Dear student ,
As per the Fajan's rule smaller the size of the cation more covalent character will be and lesser the solubility of the compound .
thus greater the size of the cation ,more solubility and soluibility product .
so option (b) is correct
Regards

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