Preparation of Nitrogen

Chemistry

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Methods of preparation of nitrogen

  • It is prepared from liquefaction of air and fractional distillation.
  • By thermal decomposition of ammonium nitrite: 
  • From ammonium dichromate:

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Properties and Uses of Nitrogen

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Important Questions

Dinitrogen and dihydrogen react with each other to produce ammonia according to the following chemical equation:

(i) Calculate the mass of ammonia produced if dinitrogen react with of dihydrogen
(iii) Will any of the two reactants remain unreacted?
(iii) If yes, which one and what would be its mass?

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Write the balanced chemical equation for the following reaction and identify the type of reaction :

Nitrogen gas is treated with hydrogen gas in the presence of a catalyst at 773 K to form ammonia gas.

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Draw the molecular orbital diagram of , . Write their electronic configuration, find the bond order and predict their magnetic behaviour. Arrange the above in increasing order of bond length.

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On heating ammonium dichromate and barium azide separately we get:

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In Duma's method for estimation of nitrogen, 0.25 g of an organic compound gave 40 mL of nitrogen collected at 300 K temperature and 725 mm pressure. If the aqueous tension at 300 K is 25 mm, the percentage of nitrogen in the compound is:

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Why is less reactive at room temperature?

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Extra very pure can be obtained by heating:

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The mixture of and is called as :

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on heating liberates gas. The same gas will be obtained by :

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and on heating decomposes into :

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