1.

Choose correct ordect orders:

Answer»

`BeSO_(4)ltMgSO_(4)LT CaSO_(4)ltSrSO_(4)ltBaSO_(4)`
(enthalpy of solution )
`Ca(OH)_(2)ltSr(OH)_(2)("solubility") BeCO_(3)gtMg CO_(3)`
`gtCaCO_(3)("THERMAL stability ")`
`NaO_(2)gtKO_(2)("stability")`

Answer :1


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