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Q. In potash alum, potassium and aluminium are present as

The p-Block Elements

Solution:

In potash alum, $K^{+}$ and $Al^{3+}$ are present as hexaaquo complex ions such as $[K(H_2O)_6]^{+}$ and $[Al(H_2O)_6]^{3+}$ions.