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BeO is insoluble but BeSO4 is soluble in...

BeO is insoluble but `BeSO_4` is soluble in water. Explain.

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The higher lattice enthalpy of BeO formed by the combination of small cation and smll anion is more than its hydration enthalpy but the lattice enihalpy of `BeSO_4` formed by the combination of a small catipn and large anion is less than its hydration enthalpy,
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CHHAYA PUBLICATION-s-BLOCK ELEMENTS -EXERCISE (SHORT-TYPE QUESTIONS)
  1. Out of Na and Mg which one has higher second ionisation enthalpy? Why?

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  2. The hydroxides and carbonates of Na and K are readily soluble in water...

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  3. BeO is insoluble but BeSO4 is soluble in water. Explain.

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  4. BaO is soluble but BaSO4 is insoluble in water why?

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  5. The chloride of a metal is soluble in an organic solvent. The chloride...

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  6. The halides of berylium dissolve in organic solvents but those of bari...

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  7. Which out of Ca(OH)2 and Mg(OH)2 is more soluble in water and why ?

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  8. MgCO3 is more soluble in water than CaCO3. Give reason.

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  9. Which out of Mg(OH)2 & Ca(OH)2 is a stronger base and why ?

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  10. Anhydrous CaCl2 is used as a dehydrating agent- why?

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  11. Discuss the biological importance of Ca^(2+) and Mg^(2+) ions.

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  12. Discuss the biological importance of Na^(+) and K^(+) ions.

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  13. Lil is more soluble than KI in ethanol. Explain.

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  14. MgSO4 is more soluble in water than SrSO4 and decomposes at a much low...

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  15. The aqueous solution of sodium carbonate is alkaline - why?

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  16. K2CO3 cannot be prepared by Solvay process - why?

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  17. How can pure NaCI be prepared from common impure NaCl?

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  18. Why does common salt become wet in rainy season?

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  19. With the help of a drop of an indicator solution, how would you know w...

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  20. The thermal decomposition of CaCO3 is a reversible reaction: CaCO3 hAr...

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