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What is the oxidation state of K in KO(2...

What is the oxidation state of K in `KO_(2)` ?

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The superoxide species is represented as `O_(2)^(-)` , since the compound is neutral therefore, the oxidation state of potassium is `+1`
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NCERT-THE S-BLOCK ELEMENTS-EXERCISE
  1. What is the oxidation state of K in KO(2) ?

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  2. What are the common physical and chemical features of alkali metals?

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

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  4. Why are alkali metals not found in nature?

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

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  6. Explain why is sodium less reactive than potassium.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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