Which of the following statements are incorrect?

1.	Which of the following statements are incorrect?
Answer» `Li^(+)` has minimum DEGREE of HYDRATION among alkali METAL cations. The oxidation state of K in `KO_(2) is +1` Sodium is used to make `NA//Pb` alloy. `MgSO_(4)` is readily soluble in water. Solution :`Li^(+)` has maximum degree of hydration among alkali metal cations `Li^(+) gt Na^(+) gt K^(+) gt Rb^(+)gtCs^(+)`

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