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What is the oxidation state of K in KO2 ...

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 TELUGU-THE s-BLOCK ELEMENTS-EXERCISES
  1. What is the oxidation state of K in KO2 ?

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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 the free state in nature?

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  5. Find out the oxidation state of sodium in Na2O2.

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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 (i...

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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. What makes caesium and potassium useful as electrodes in photoelectric...

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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. Potassium carbonate cannot be prepared by Solvey process. Why?

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  15. Why is Li2CO3 decomposed at a lower temperature whereas Na2CO3 at hig...

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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 (1) S...

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  18. What happens when (i) magnesium is burnt in air (ii) quick lime is hea...

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  19. Describe two important uses of each of the following : (i) caustic sod...

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  20. Draw the structure of (i) BeCl(2) (vapour) and (ii) BeCl(2) (solid).

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

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