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  • Confused! kindly explain, Solubility of the alkaline earth's metal sulphates in water decrease in the sequence:-

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

  • Option 1)

    Ca > Sr > Ba > Mg

  • Option 2)

    Sr > Ca > Mg > Ba

  • Option 3)

    Ba > Mg > Sr > Ca

  • Option 4)

    Mg > Ca > Sr > Ba

 

Answers (1)

best_answer

As we learnt in

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 surface of alkaline earth metals decreases down the group from Be to BA  because lattoce emergy remains almost constant, whereas the hydration energy decreases dramatically. 

 


Option 1)

Ca > Sr > Ba > Mg

Incorrect

Option 2)

Sr > Ca > Mg > Ba

Incorrect

Option 3)

Ba > Mg > Sr > Ca

Incorrect

Option 4)

Mg > Ca > Sr > Ba

Correct

Posted by

Aadil

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