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How is nitrogen prepared in the laborato...

How is nitrogen prepared in the laboratory? Write the chemical equations of the reactions involved.

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In laboratory, nitrogen is prepared by heating an aqueous solution of `NH_4Cl` and `NaNO_2(1:1)` the `NH_4NO_2` formed as a result of double decomposition reaction, being unstable decomposes to form `N_2` gas.
`NH_4Cl+NaNOtoNH_4NO_2+NaCl`
`NH_4NO_2overset(Delta)N_2+2H_2O`
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CENGAGE CHEMISTRY ENGLISH-APPENDIX INORGANIC VOLUME 2-Exercises
  1. Discuss the trends in chemical reactivity of group 15 elements.

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  2. Why does NH(3) form hydrogen bond but PH(3) does not?

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  3. How is nitrogen prepared in the laboratory? Write the chemical equatio...

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  4. State three different chemical compounds other than acids manufactured...

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  5. Pb + conc. HNO(3) gives

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

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  7. The HNH angle value is higher than HPH, HAsH and HSbH angles. Why? ...

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

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  9. Explain why NH(3) is basic while BiH3 is only feebly basic.

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  10. Nitrogen exists as diatomic molecule and phosphorus as P(4). Why?

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  11. Write main differences between the properties of white phosphorus and ...

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  12. Why does nitrogen show catenation properties less than phosphorus ?

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  13. Give the disproportionation reaction of H(3)PO(3).

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  14. Can PCl(5) act as an oxidising as well as a reducing agent? Justify.

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

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

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

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  18. Which aerosols deplete ozone?

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  19. Describe the manufacture of H(2)SO(4) by contact process?

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

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