Solubility of the alkaline earth's metal sulphates in water decreases in the sequence:

  • Option 1)

    Sr > Ca > Mg > Ba

  • Option 2)

    Ba > Mg > Sr > Ca

  • Option 3)

    Mg > Ca > Sr > Ba

  • Option 4)

    Ca > Sr > Ba > Mg

 

Answers (1)

As we discussed in the concept ID

Solubility of sulphates of alkaline metals -

Solubility in water decreases from Be to Ba

- wherein

Lattice energy is constant whereas hydration energy decreases from Be^{2}^{+}\ to\ Ba^{2}^{+}

 

 Solubility of Sulphate in water decreases from Be to Ba


Option 1)

Sr > Ca > Mg > Ba

This option is incorrect

Option 2)

Ba > Mg > Sr > Ca

This option is incorrect

Option 3)

Mg > Ca > Sr > Ba

This option is correct

Option 4)

Ca > Sr > Ba > Mg

This option is incorrect

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