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What is the covalency of 'N'in nitrogen ...

What is the covalency of 'N'in nitrogen pentoxide ? 

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Number of .O. atoms bonded to each .N.atom in `N_(2)O_(5)` is 2.5. Hence the covalency of .N. is calculated as 5, based on oxide theory. But by the examination of the structure of `N_(2) O_(5)`, one can observe that .N. forms only 4 bonds. Its covalency in nitrogen pentoxide is 4.
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AAKASH SERIES-VA GROUP ELEMENTS-PRACTICE EXERCISE
  1. What is the covalency of 'N'in nitrogen pentoxide ?

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  2. Which of the following reacts rapidly with oxygen in the air at ordina...

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  3. The p-p bond energy is 'x' KJ/mole. Then the energy needed for the dis...

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  4. Nitrogen differs from other elements among the VA group, due to

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  5. The following are some statements about VA group elements I) All ele...

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  6. With reference to protonic acids, which of the following statements is...

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  7. The statements regarding N, molecule are I) The Bond energy is 945. ...

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  8. Which of the following is least stable?

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  9. The decreasing values of bond angles from NH(3) to SbH(3) down the gro...

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  10. One mole of calcium phosphide on reaction with excess of water gives

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  11. The following are some statements related to VA group hydrides I : R...

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  12. Which of the following oxides of nitrogen is a brown coloured gas?

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  13. The number of oxygen atoms around Phosphorous in the dimer of P(2)O(5)

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  14. The number of bridge oxygen atoms present in both P(4)O(6) and P(4)O(1...

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  15. The number of P - O bonds and lone pair of electrons present in P(4)O(...

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  16. {:("LIST - 1","LIST - 2"), ("A) NO","1) Colourless and paramagnetic"),...

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  17. PCI(5) exists but NCI(5) does not. This is because of

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  18. The aqueous solution of NCl(3) can be used as

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  19. Which of the following element of Group VA is more metallic

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  20. The element of Group VA that exhibits maximum number of oxidation stat...

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  21. When orthophosphoric acid is strongly heated the product formed is

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