InterviewSolution
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InterviewSolution
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Dinitrogen is commercially prepared byA. the action of alkaline hypobromite solution on ureaB. the oxidation of `NH_(3)`by passing it over heated copper oxide.C. fractional distillation of liquefied airD. heating barium aside |
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Answer» Correct Answer - 3 `N_(2)` is obtained commercially by condensing air to the liquid state and then fractionally distilling the liquid air.`N_(2)` has a lower boiling point than `O_(2)` ( the boiling point of liquids `N_(2)` and liquid `O_(2)` are `-196^(@)C`amd `-183^(@)` respectively)and therefore molecular nitrogen will boil off before molecular oxygen does during the fractional distillation of liquid air. Six industrial gases are obtained in this way: `N_(2), O_(2), Ne, Ar, kr` and `Xe`. |
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