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Which oxide is formed when potassium is ...

Which oxide is formed when potassium is heated in e3xcess of oxygen?

A

`K_(2)O`

B

`KO`

C

`K_(2)O_(2)`

D

`KO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
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NCERT FINGERTIPS-PRACTICE PAPER 3-Practice Paper 3
  1. Which of the following solutions will have pH close to 1.0?

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  2. The signs of DeltaH,DeltaS and DeltaG for a non-spontaneous reaction a...

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  3. Which oxide is formed when potassium is heated in e3xcess of oxygen?

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  4. What is the decreasing order of strength of the bases OH^(-),NH(2)^(-)...

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  5. The electrons, identified by quantum numbers n and l(i) n=4,l=1 (ii) n...

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  6. Conjugate base of a strong acid is

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  7. A sample of gas has a volume of V(1) litre at temperature t(1).^(@)C. ...

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  8. The liquefaction behaviour of temporary gases approacches that of perr...

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  9. When the temperature is raised, viscosity o the liquid decreases. This...

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  10. the pH of a solution prepared by mixing 2M, 100 mL HCl and M, 200 mL N...

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  11. In which of the following ionisation processes, the bond order has inc...

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  12. In which of the following pairs, the hybridisation of central atoms is...

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  13. Select correct statement for BrF(5).

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  14. Consider a P(y) orbital of an atom and identify correct statement

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  15. Which of the following will have maximum dipole moment?

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  16. Which of the following is not the consequence of H-bonding?

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  17. The two equilibrium AB hArr A^(+) + B^(-) and AB+B^(-)hArrAB(2)^(-) ar...

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  18. Consider the following equilibrium in a closed container, N(2)O(4(g)...

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  19. The degree of dissociation alpha of the reaction" N(2)O(4(g))hArr 2N...

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  20. (I) H(2)O(2)+O(3) to H(2)O+2O(2) (II) H(2)O(2)+Ag(2)O to 2Ag+H(2)O+O...

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