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The elements oxygen and sulphur are call...

The elements oxygen and sulphur are called chalcogens because

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DINESH PUBLICATION-THE P-BLOCK ELEMENTS -Oxygen Family (Group 16)
  1. Amongest H(2)O,H(2)S,H(2)Se and H(2)Te the one with highest boiling p...

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  2. Account for the fact that SO(2) can act as an oxidising and reducing a...

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  3. Sulphur is a solid while oxygen is a gas at room temperature. Why ?

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  4. Among the hydrides of oxygen family, water is anomalous. Explain.

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  5. Draw the structure formula of the following : (i) Thiosulphuric acid...

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  6. Sulphur vapours exhibit some paramagnetic behaviour. Explain.

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  7. Sulphur disappears when boiled with an aqueous solution of sodium sulp...

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  8. Give two examples of chalocgens.

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  9. Draw the shape of XeF(4).

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  10. Why does sulphur have greater tendency for catenation than oxygen ?

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  11. Why is SF(4) easily hydrolysed while the hydrolysis while the hydrolys...

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  12. Why is H(2)S more acidic than water ?

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  13. The elements oxygen and sulphur are called chalcogens because

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  14. Why is SF(6) kinetically inert ?

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  15. Describe contact process (equations only) for the manufacture of sulph...

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  16. Draw the shape of sulphuric acid.

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  17. The two O-O bond lengths in ozone molecule are equal. Assign reason.

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  18. Which allotropic form of sulphur is most stable ?

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  19. Draw the structure of the following molecules (i) H(3)PO(2) (ii) H(2...

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  20. In the estimation of sulphur organic compound on treating with conc. H...

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