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Element A has two electrons in its valen...

Element A has two electrons in its valence shell and its principle quantum number for last electron is 2 element B has four electrons in its valence shell and its principle quantum number for lastb electron is 2 element X has threee electrons in its valence shell and principle quantum number for last electron is 3
compounds XB and AB on hydrolysis give

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PATHFINDER-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-QUESTION BANK
  1. What happens when iodine reacts with concentrated nitric acid?

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  2. Give the common method of preparation of N2O5.

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  3. Element A has two electrons in its valence shell and its principle qua...

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  4. Match column I and column II

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  5. Match column I and column II

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  6. Match column I and column II

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  7. Match column I and column II

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  8. Match column I and column II

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  9. Select total no.of the acidic compounds out of the given CsOH,SO2(OH)2...

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  10. Draw the structure of Furfural.

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  11. How many elements are possible for 1st period of periodic table if azi...

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  12. Write the approximate Ea Of atom X in eV/atom unit using the data give...

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  13. Choose the number of correct statement(s) form the following: ist io...

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  14. For the gaseous phase reaction K+F rarr K^+ +F^- ,delta H was calculat...

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  15. 1g of Mg atoms in the vapour phase absorbs 50.0KJ of energy find the p...

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  16. The first ionisation energy of H and He are 13.6eV and 24.6eV respecti...

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  17. The ionisation energy of lithium is 5.40eV if ionisation energy of H i...

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  18. Calculate the electronegativity of fluorine from the following data EH...

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  19. Calculate the electronegativity gamma of silicon using alfred rochow e...

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  20. In BI3 molecule distance between two I atoms is found to be 3.54overse...

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