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Grade 12th passOrganic Chemistry

Some ionic compound like BaSO4, Al2O3, CaF2 etc. Are insoluble in water. Why?

Profile image of Shreya
9 Years agoGrade 12th pass
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1 Answer

Profile image of Umakant biswal
9 Years ago
@ shreya 
in baso4 , the size of ba ions and the sulphate ions are very large and therefore the lattice enthalpy is much greater than that of the hydration enthalpy . 
therefore baso4 is insoluble in water . 
HOPE IT CLEARS YOUR DOUBT 
ALL THE BEST ..

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