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Though nitrogen exhibits (+5) oxidation ...

Though nitrogen exhibits (+5) oxidation state, it does not form pentahalide. Give reason.

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Nitrogen with n = 2, has s and p-orbitals only. It does not have d-orbitals to expand its covalence beyond four. That is why it does not form pentahalide.
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KUMAR PRAKASHAN-THE P-BLOCK ELEMENTS -SECTION-E (MULTIPLE CHOICE QUESTIONS (MCQS)) (MCQS ASKED IN BOARD EXAM)
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  2. What is the product of reaction between excess xenon and fluorine at 6...

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  3. Which type of hybridisation is present in iodine pentachloride ?

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  4. Which acid can be separated (isolated) in a pure form ?

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  5. What is the formula of salt prepared by the reaction between NaOH and ...

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  6. Which one is not a p-block element ?

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  7. How many 'S' atoms are arrange in a cyclic form in the monoclinic sulp...

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  8. Which of the following reaction gives nitrogen monoxide gas ?

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  9. Which of the following pair of substances are used as promoter in Habe...

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  10. Which of the following oxo-acid is not possible ?

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  11. What is A in the reaction given below ? A + NaOH to CHCl(3) + HCOON...

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  12. Which oxide is colourless and neutral ?

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  13. What is the geometrical shape of XeO3 ?

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  14. Aqueous solution of which of the following acid can not be kept in gla...

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  15. Which of the following is the correct order for strength of C - X bond...

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  16. The molecular formulae for phosgene and tear gas are......and.....resp...

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  17. Which product will be obtained in the following reaction? Reaction: ...

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  18. Which of the following mixture is called Aquaregia?

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  19. What is the hybridisation of central atom in the product obtained alon...

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  20. How many gm of the oxidising agent gets reduced in the reaction of 65....

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  21. In which of the following acid, the maximum number of hydrogen atoms a...

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