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Among Sb H3, PH3 , NH3 and AsH3 which is...

Among `Sb H_3`, `PH_3` , `NH_3` and `AsH_3` which is least basic ?

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SHARAM PUBLICATION-GROUP 15 ELEMENTS (NITROGEN FAMILY-EXERCISE
  1. What is the basicity of H(3)PO(4) ?

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  2. Name the catalyst used in the manufacture of nitric acid by Ostwald pr...

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  3. Among Sb H3, PH3 , NH3 and AsH3 which is least basic ?

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  4. Why NCl5 is not formed?

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

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  6. Among Sb H3, PH3 , NH3 and AsH3 which is least acidic?

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  7. What happens when (NH4)2 ,Cr2O7 is heated ?

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  8. Which allotrope of phosphorus is more reactive and why?

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  9. What is the oxidation number of P in (H2 PO4)^(1-) ?

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  10. Why is white phosphorus kept under water ?

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  11. Which gas is librated when NH4 NO2 is heated ?

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  12. Between nitrogen and phosphorus, which has more catenating property ?

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  13. Fill in the blanks : With excess of Cl2 ammonia forms …………

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  14. Nitrogen does not form pentahalides. Why?

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  15. Fill in the blanks : The formula of acidic nitrogen hydride is ………….

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  16. Fill in the blanks : The P- P-P angle in P4 molecule is …………..

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  17. Fill in the blanks : ……………. Is obtained when white phosphorus is heate...

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  18. Fill in the blanks : As2O3is …………….. While Sb2O3 is ………. .

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  19. Fill in the blanks : Red phosphorus is ………… reactive than white phosph...

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  20. Fill in the blanks : NH4 NO2 on heating gives ………… gas.

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