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Sulphur exhibits greater tendency for ca...

Sulphur exhibits greater tendency for catenation than seleniun. Explain why?

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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
  1. Comment on nature of two S-O bond formed in SO2 molecule. Are the two ...

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  2. Express 2062 in roman numbers.

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  3. Give hybridization and draw structure of XeF4.

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  4. Give reasons for the following : SF6 is not readily hydrolysed.

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  5. Give reasons for the following: Sulphur vapour is paramagnetic.

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  6. What are the interhalogen compounds ? Why are these more reactive than...

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  7. Considering the parameters such as bond dissociation enthalpy, electro...

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  8. Why is helium used in diving apparatus?

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  9. Account for the following : NH3 is a stronger base than PH3.

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  10. Sulphur exhibits greater tendency for catenation than seleniun. Explai...

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  11. How H(3)PO(3) is diprotic acid?

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  12. Write the four oxoacids of chlorine. Explain their relative acidic cha...

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  13. Explain the chemistry of manufacture of nitric acid by Ostwald’s proce...

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  14. Complete the following chemical equation : Ca3P2(s) + H2O (l) rarr .....

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  15. Complete the following chemical equation : F2(g)+ H2O(l) rarr ...........

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  16. Complete the following equation : Ca3 (PO4)2 + SiO2 + C rarr

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  17. Nitrogen exists as diatomic molecule and phosphorus as P4. Why ?

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  18. Give the resonating structures of NO2 and N2O5.

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  19. Give two examples to show the anomalous behaviour of fluorine.

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  20. Draw the structure of P4O10.

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