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Fill in the blanks : As2O3is …………….. Whi...

Fill in the blanks : `As_2O_3`is …………….. While `Sb_2O_3` is ………. .

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SHARAM PUBLICATION-GROUP 15 ELEMENTS (NITROGEN FAMILY-EXERCISE
  1. Fill in the blanks : The P- P-P angle in P4 molecule is …………..

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

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

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

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

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  6. Fill in the blanks : …………… element of Gr - 15 is the most abundant in ...

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  7. Fill in the blanks : Aqueous solution of ammonia contains ……….. .

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  8. Fill in the blanks : The basicity of H3PO3 is …………

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  9. Fill in the blanks : The formula of pyrophosphorus acid is ………….

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  10. Fill in the blanks : In Brown ring test for NO3^(-) ion, Fe^2+ ion com...

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  11. Fill in the blanks : NH3 acts as a lewis base due to …………..

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  12. Fill in the blanks : The hydride of Gr 15 element used as refrigerant ...

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  13. How does ammonia react with a solution of Cu^(2+) ?

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  14. Mention the conditions required to maximise the yield of ammonia.

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  15. Write the reaction of thermal decomposition of sodium azide.

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  16. Why PH(3), has lower boiling point than NH(3)?

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  17. Why NO2 dimerise to N2O4 ?

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  18. PCl5 exists but NCl5 does not because,

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  19. Nitrogen does not form pentahalides. Why?

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  20. Why Bi does not form pentahalide ?

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