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Out of Na and Mg which one has higher se...

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

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Second ionisation enthalpy of Na is higher than that of Mg.
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CHHAYA PUBLICATION-s-BLOCK ELEMENTS -EXERCISE (SHORT-TYPE QUESTIONS)
  1. Magnesium occurs in nature largely as MgCO3 but beryllium never occurs...

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  2. The crystalline salts of alkaline earth metals contain more water of c...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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