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Potassium when heated strongly in oxygen...

Potassium when heated strongly in oxygen, if forms `:`

A

`K_(2)O`

B

`KO_(2)`

C

`K_(2)O_(2)`

D

`KO_(3)`

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VMC MODULES ENGLISH-13-14 HYDROGEN & S-BLOCK ELEMENT-Level 1
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  2. Elements in the first column of the periodic table are called alkali m...

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  3. Potassium when heated strongly in oxygen, if forms :

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  4. The reaction of sodium is highly exothermic with water. The rate of re...

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  5. RbO(2) is a

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  6. KOH is preferably used to absorb CO(2) gas because :

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  7. When washing soda is heated

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  8. When sodium hydroxide solution is electrolysed :

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  9. LiAlH(4) is used as :

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  10. Why can Solvay process not be used for the manufacture of potassium ca...

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  11. Which of the following increases in magnitude as the atomic number of ...

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  12. Sodium hasas compared to potassium-

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  13. The metallic lusture exhibited by sodium is due to

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  14. In the electrolysis of NaCl solution for the manufacture of NaOH by Ca...

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  15. Among LiCl, RbCl, BeCl2, MgCl2, the compounds with greatest and least ...

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  16. Stable oxide is obtained by heating the carbonate of the elements

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  17. Which of the following elements combines directly with nitrogen to for...

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  18. Which of the following has the highest melting point ?

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  19. In view of their low ionisation energies, the alkali metals are

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  20. which of the following has the lowest melting point ?

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