Home
Class 12
CHEMISTRY
How is nitrogen prepared from liquid air...

How is nitrogen prepared from liquid air ?

Text Solution

Verified by Experts

(i) Nitrogen is separated industrially from liquid air by fractional distillation.
(ii) Pure nitrogen gas can be obtained by the thermal decomposition of sodium azide about 575K.
`2NaN_(3) rarr 2Na+3N_(2)`
Promotional Banner

Topper's Solved these Questions

  • P-BLOCK ELEMENTS - II

    SURA PUBLICATION|Exercise ADDITIONAL QUESTIONS AND ANSWERS ( SHORT ANSWER )|23 Videos

  • P-BLOCK ELEMENTS - II

    SURA PUBLICATION|Exercise ADDITIONAL QUESTIONS AND ANSWERS (LONG ANSWER)|31 Videos

  • P-BLOCK ELEMENTS - II

    SURA PUBLICATION|Exercise ADDITIONAL QUESTIONS AND ANSWERS ( INCORRECT STATEMENT (S) :)|5 Videos

  • P - BLOCK ELEMENTS - I

    SURA PUBLICATION|Exercise UNIT TEST (ANSWER IN PARAGRAPH)|2 Videos

  • SOLID STATE

    SURA PUBLICATION|Exercise ANSWER IN PARAGRAPH|2 Videos
SURA PUBLICATION-P-BLOCK ELEMENTS - II-ADDITIONAL QUESTIONS AND ANSWERS (VERY SHORT ANSWER )
  1. How is nitrogen prepared from liquid air ?

    Text Solution

    |

  2. Give two uses of nitrogen.

    Text Solution

    |

  3. How is ammonia prepared in the lab?

    Text Solution

    |

  4. Give two uses of nitric acid.

    Text Solution

    |

  5. What is phosphoresence ?

    Text Solution

    |

  6. What is the reaction of Phosphorous with alkali ?

    Text Solution

    |

  7. Discuss the oxidising power of fluorine.

    Text Solution

    |

  8. Elements of group 16 show lower value of first ionization enthalpy com...

    Text Solution

    |

  9. Although Delta H of fluorine is less negative than that of chlorine,...

    Text Solution

    |

  10. (i) Give correct order of boiling point of hydride of group 17. (ii)...

    Text Solution

    |

  11. How would you account for the following ? The electron gain enthalpy...

    Text Solution

    |

  12. There is a huge difference between the melting and boiling points of o...

    Text Solution

    |

  13. Why does ozone act as a powerful oxidising agent ?

    Text Solution

    |

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

    Text Solution

    |

  15. Acidic character increases from HF to HI. State whether the above stat...

    Text Solution

    |

  16. Give the reason for bleaching action of Cl(2).

    Text Solution

    |

  17. Give reason for the following : F(2) is more reaction than ClF(2) b...

    Text Solution

    |

  18. Arrange the following as indicated below : F(2), Cl(2), Br(2), I(2) ...

    Text Solution

    |

  19. Arrange the following as indicated below : HF, HCl , HBr, HI - inc...

    Text Solution

    |

  20. Account for the following : O - O bond lengths in ozone molecule are...

    Text Solution

    |