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Explain why can alkali and alkaline eart...

Explain why can alkali and alkaline earth metals not be obtained by chemical reduction methods?

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In the process of chemical reduction, oxides of metals are reduced using a stronger reducing agent. Alkali metals and alkaline earth metals are among the strongest reducing agents and the reducing agents that are stronger than them are not available. Therefore, they cannot be obtained by chemical reduction of their oxides.
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NCERT-THE S-BLOCK ELEMENTS-EXERCISE
  1. Compare the alkali metals and alkaline earth metals with respect to (a...

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  2. In what ways lithium shows similarities to magnesium in its chemical b...

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  3. Explain why can alkali and alkaline earth metals not be obtained by ch...

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  4. Why are potassium and caesium, rather lithium used in photoelectric ce...

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  5. When an alkali metal dissolves in liquid ammonia the solution can acqu...

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  6. Beryllium and magnesium do not give colour to flame whereas other alka...

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  7. Discuss the various reactions that occur in the Solvay process

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  8. Why potassium carbonate (K(2)CO(3)) cannot be prepared by Solvay-ammon...

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  9. Why is Li(2)CO(3) decomposed at a lower temperature whereas Na(2)CO(3)...

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  10. Compare the solubility and thermal stability of the following compound...

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  11. Starting with sodium chloride how would you proceed to prepare: (a) s...

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  12. What happens when (a) magensium in burnt in air, (b) quicklime is heat...

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  13. Describe two important uses of each of the following: (a) casutic so...

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  14. Draw the structure of (a) BeCl(2)(vapour) and (b) BeCl(2) (solid).

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  15. The hydroxides and carbonates of sodium and potassium are easily solub...

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  16. Describe the importance of the following: (a) limestone, (b) cement an...

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  17. Why are lithium salts commonly hydrated and those of the other alkali ...

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  18. Why is LiF almost insoluble in water whereas LiCl soluble not only in ...

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  19. Explain the significance of sodium, potassium, magnesium and calcium o...

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  20. What happens when a. Sodium metal is dropped in water? b. Sodium m...

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