Home
Class 12
CHEMISTRY
What is diazotisation?...

What is diazotisation?

Text Solution

Verified by Experts

Aromatic primary amines when treated with `NaNO_2` and hydrochloric acid (i.e. `HNO_2`) at 273-278 K form the corresponding diazonium salt. This reaction is known as diazotisation.
`NaNO_2+HCl rarr NaCl+HNO_2`
Promotional Banner

Topper's Solved these Questions

  • ALDEHYDE, KETONES AND CARBOXYLIC ACIDS

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|139 Videos

  • BIOMOLECULES

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|73 Videos

Similar Questions

Explore conceptually related problems

What will be the product obtained diazotisation of aniline is carried out at room temperature?

Write short notes on the following: i)Carbylamine reaction ii) Diazotisation iii) Hoffmảnn's bromamide reaction iv) Coupling reaction v) Ammonolysis vi) Acetylation vii) Gabriel phthalimide śynthesis.

In the diazotisation of aniline with sodium nitrite and hydrochloric acid, the excess of hydrochloric acid is used primarily to

How many of the following amines will undergo diazotisation? tert-Butylamine, ethanamine, aniline, N-methylaniline, p-toluidine, m-chloroaniline, 2-phenylethanamine o-anisidihe, 2,4,6-tribromoaniline.

Arene diazonium salts are more stable than alkanediazonium salts due to dispersal of the positive charge on the benzene ring. Obviously, electron-donating groups favour diazotisation by retarding the decomposition of diazonium salts to phenyl cation. The high reactivity of arenediazonium salts is due to the excellent leaving ability of the diazo group as N_2 gas. Which of the following arylamines undergoes diazotisation most readily?

A N EXCEL PUBLICATION-AMINES-QUESTION BANK
  1. Write a method of preparation of primary amines.

    Text Solution

    |

  2. Give a chemical reaction given only by primary amines.

    Text Solution

    |

  3. What is diazotisation?

    Text Solution

    |

  4. Amines are basic. Arrange the following amines in the increasing order...

    Text Solution

    |

  5. Two well known reactionare given below: Suggest the main product of e...

    Text Solution

    |

  6. Two well known reactionare given below: Suggest the main product of e...

    Text Solution

    |

  7. Amines are classifie as primary, secondary and teritary Write the IUP...

    Text Solution

    |

  8. Which is stronger base-CH3NH2 or C6H5NH2? Why?

    Text Solution

    |

  9. Aromatic and aliphatic amines are basic in nature like ammonia. Arrang...

    Text Solution

    |

  10. How will you carry out the following reaction? Hoffmann bromamide re...

    Text Solution

    |

  11. Carbylamines have an offensive smell. Write the carbylamine reaction.

    Text Solution

    |

  12. Amines are classified as primary, secondary and teritary amine. repr...

    Text Solution

    |

  13. Aromatic amines are important synthetic intermediates. How will you ...

    Text Solution

    |

  14. Aniline does not undergo friedel-crafts reaction. Why?

    Text Solution

    |

  15. Amines can be considered as derivatives of ammonia. Arrange the foll...

    Text Solution

    |

  16. How will you convert aniline (C6H5NH2) to chlorobenzene?

    Text Solution

    |

  17. Classify the following amines as primary, secondary and teritary.

    Text Solution

    |

  18. . Identify the products B and C and write their formulae.

    Text Solution

    |

  19. The most basic compound among the following is

    Text Solution

    |

  20. Compound A is treated with ethanolic NaCN to give the compound C2H5CN(...

    Text Solution

    |