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Explain why is sodium less reactive than...

Explain why is sodium less reactive than potassium.

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The ionisation enthalpy of potassium (496 kJ `"mol"^(-1)`) is less than that of sodium (520 kJ `"mol"^(-1)`) and therefore, potassium is more reactive than sodium. This is also indicated by more negative standard electrode potential of potassium (-2.925 V) as compared to sodium (-2.714V).
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MODERN PUBLICATION-S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS ) -NCERT FILE ( NCERT Textbook Exercises)
  1. Why are alkali metals not found in nature?

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

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  3. Explain why is sodium less reactive than potassium.

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

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

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

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

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

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

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

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  11. Potassium carbonate can be obtained by Solvay's process.

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

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

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  14. Starting from sodium chloride, how will you proceed to prepare (i) sod...

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

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

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  17. Draw the structure of (i) BeCl2 (vapour) and (ii) BeCl2 (solid).

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

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

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  20. Why are lithium salts commonly hydrated while those of other alkali me...

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