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Why are alkali metals not found in natur...

Why are alkali metals not found in nature?

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Alkali metals include lithium, sodium, potassium, rubidium, cesium, and francium. These metals have only one electron in their valence shell, which they lose easily, owing to their low ionization energies. Therefore, alkali metals are highly reactive and are not found in nature in their elemental state.
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NCERT-THE S-BLOCK ELEMENTS-EXERCISE
  1. What are the common physical and chemical features of alkali metals?

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  2. Discuss the general characteristics and gradation in properties of alk...

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  3. Why are alkali metals not found in nature?

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  4. Find out the oxidation state of sodium in Na(2)O(2).

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  5. Explain why is sodium less reactive than potassium.

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  6. Compare the alkali metals and alkaline earth metals with respect to (a...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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