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Illustrate, how copper gives different p...

Illustrate, how copper gives different products on reaction with `HNO_3`.

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Illustrate how copper metal can give different product on reaction with HNO_3 .

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DINESH PUBLICATION-THE P-BLOCK ELEMENTS -N.C.E.R.T. Exercise
  1. How is nitrogen prepared in the laboratory? Write the chemical equatio...

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  2. How is ammonia manufactured industrially?

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  3. Illustrate, how copper gives different products on reaction with HNO3.

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

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  5. The HNH angle value is higher than those of HPH, HAsH and HSbH angles ...

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  6. Why does R(3)P=O exist but R(3)N=O does not (R is an alkyl group )?

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  7. Explain why is NH(3) basic while PH(3)is feebly basic in nature.

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  8. Nitrogen exists as diatomic molecule (N(2)) while phosphorus as tetra-...

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  9. Write main differences between the properties of white phospghorus and...

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  10. Why does nitrogen show catenation properties less than prosphorus.

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  11. Give one disproportionation reaction of phosphorus acid (H(3)PO(3)).

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  12. Can PCl(5) act as oxidising as well as reducing agent ? Justify.

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  13. Justify the placement of O, S, Se, Te and Po in the same group of the ...

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  14. Why is dioxygen a gas but sulphur a solid?

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  15. Knowing the electron gain enthalpy values for O to O^(-) " and " O to...

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  16. Which aerosols deplete ozone ?

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  17. The catalyst used in the manufacture of H(2)SO(4) by contact process i...

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  18. How is SO(2) an air pollutant ?

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  19. Why are halogens strong oxidising agents ?

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  20. Explain why does fluorine form only one oxoacid (HOF).

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