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Explain why NH(3), is basic, while BiH(3...

Explain why `NH_(3)`, is basic, while `BiH_(3)` , is only feebly basic?

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Electronegativity decreases from N to Bi in the group, hence ability of such elements to accept `H^(+)` ion also decreases down the group.
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ARIHANT PUBLICATION-ELEMENTS : NITROGEN FAMILY-ODISHA BUREAU.S TEXTBOOK SOLUTIONS ( Short Answer Type I Questions ) ( C )
  1. State the reaction of conc. HNO(3) , with sulphur. Give equation.

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  2. In the ring test for nitrate, which complex compound is formed?

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  3. Why ammonia is not dried by conc. H(2)SO(4) ?

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  4. How ammonia gas is tested with Nessler's reagent?

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  5. What happens when very dilute nitric acid reacts with zinc?

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  6. Write the equation for the preparation of phosphine.

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  7. How does magnesium react with very dilute nitric acid?

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  8. What happens when phosphine is passed through silver nitrate solution?...

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  9. Why does NH3 form hydrogen bond but PH3 does not ?

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  10. Give the resonating structures of NO(2) and N(2)O(5) .

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  11. Explain why NH(3), is basic, while BiH(3) , is only feebly basic?

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  12. Why does Nitrogen exist as N2 white phosphorus as P4 ?

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  13. The HCC bond angle in acetylene is:

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  14. Why does the reactivity of nitrogen different from phosphorous?

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  15. Why nitrogen does not form pentahalide, but ,,phosphorus pentahalide e...

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  16. Explain, why bismuth is a strong oxidising agent in the pentavalent st...

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  17. Explain, why stability of +5 oxidation state decreases down the group ...

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  18. Why does nitrogen show catenation property less than phosphorus?

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  19. Why is N(2) , less reactive at room temperature?

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  20. Explain why NH3 is a ligand while NH4^+ is not.

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