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Group 16 element (except polonium ) are ...

Group 16 element (except polonium ) are called chalcogens because

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With the exception of the last element polonium (Po) all other elements present in group 16 are involved in the chalcogens (ore forming elements).
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DINESH PUBLICATION-THE P-BLOCK ELEMENTS -Questions From Board Examinations
  1. Although flurorine is more electronegative than oxygen, but the abilit...

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  2. Which element of chalcogens has maximum tendency to show catenation ?

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  3. Group 16 element (except polonium ) are called chalcogens because

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  4. Structure of xenon fluorides cannot be explained by valence bond theor...

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  5. Predict the shape and the asked angle (90^(@) or more or less ) in eac...

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

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  7. what happens if conc H(2)SO(4) is used in preparing hydrogen by its re...

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  8. Why phosphorus is more reactive than nitrogen?

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  9. The stability of +5 oxidation state decreases down the group 15 of the...

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  10. Arrange the following in order of decreasing N - O bond length NO(2)^(...

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  11. Which is a stronger reducing agent , SbH(3) " or " BiH(3) and why ?

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  12. Explain why all bonds in SF(4) molecule are not equivalent.

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  13. Despite lower value of its electron gain enthalpy with negative sign, ...

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  14. Why are halogens coloured?

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  15. Complete the reactions (i) Cu+HNO(3) ("Conc.") to (ii) XeF(4) + O(2)...

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  16. Although hydrogen bonding in HF is stronger than in water, yet water h...

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  17. Complete the following reactions : (i) NH(4)Cl(aq) overset("heat") t...

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  18. Write balanced chemical equations for the following reactions : (a) ...

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  19. Write balanced chemical equation for the following : (a) NaCl is hea...

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  20. Give two allotropes of oxygen. Give one method of preparation and two ...

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