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The hydroxides and carbonates of Na and ...

The hydroxides and carbonates of Na and K are readily soluble in water while the corresponding salts of Mg and Ca are sparingly soluble. Explain.

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Due to smaller size and higher ionic charge, the lattice enthalpies of alkaline earth metals are much higher than those of alkali metals and hence the solubility of alkali metal hydroxides and carbonates is much higher than those of alkaline earth metal hydroxides and carbonates.
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CHHAYA PUBLICATION-s-BLOCK ELEMENTS -EXERCISE (SHORT-TYPE QUESTIONS)
  1. The crystalline salts of alkaline earth metals contain more water of c...

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  2. Out of Na and Mg which one has higher second ionisation enthalpy? Why?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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