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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-APPENDIX INORGANIC VOLUME 2-Exercises
  1. Discuss the trends in chemical reactivity of group 15 elements.

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

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

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  4. How is ammonia manufactured industrially?

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  5. Illustrate how copper metal can give different product on reaction wit...

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  6. Give the resonating structures of NO2 and N2O5.

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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 R3P=0 exist but R3N=0 does not (R= alkyl group)?

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

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  10. Nitrogen exists as diatomic molecule and phosphorus as P4. Why?

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

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

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  13. Give the disproportionation reaction of H3PO3.

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  14. Can PCl5 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 per...

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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 rarr O^(Ө) and O rarr ...

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  18. Which aerosols deplete ozone?

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  19. How is SO2 an air pollutant?

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  20. Why are halogens strong oxidising agents ?

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