Home
Class 12
CHEMISTRY
Iodoform gives a precipitate with AgNO3....

Iodoform gives a precipitate with `AgNO_3`. Why ?

Text Solution

Verified by Experts

Haloforms, `CHX_3` on hydrolysis with aqueous alkali (say aq. KOH) gives salt of formic .acid and hence the name haloforms.
` CHX_3 + 4KOH (aq) overset("warm")to HCOOK + 2KY +H_2 O`
However in case of iodoform, CHI, this hydrolysis is possible even with water. This is because the C- bond is quite weak. This when iodoform is wanned with aq. `AgNO_3 `, yellow ppt. of Agl is formed.
` CHI_3 +2H_2 O overset("warm)to HCOOH + 3HI`
` HI + Ag NO_3 to underset("Yellow p pt .")(Agl)`
Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS

    BETTER CHOICE PUBLICATION|Exercise Question Bank (6.6 OXIDATION-REDUCTION)|15 Videos

  • ORGANIC COMPOUND WITH FUNCTIONAL GROUP CONTANING OXYGEN-II

    BETTER CHOICE PUBLICATION|Exercise Question Bank (12.9 Uses of Carboxylic Acids)|4 Videos

Similar Questions

Explore conceptually related problems

Iodoform gives a precipitate with silver nitrate on heating while chloroform does not ?

The complex [Co(NH_3)_5Br] SO_4 give white precipitates with BaCl_2 solution while [CO(NH_3)_5SO_4]Br give yellow precipitate with AgNO_3 solution. Explain.

An aqueous solution of [Pt(NH_3)_2Cl_2] gives white precipitate of AgCl with AgNO_3(aq) .

An aqueous solution of [Pt(NH_3)_2Cl_2] gives white precipitate of AgCl with AgNO_3(aq) .

Chloroform contains chlorine but does not give reaction with AgNO_3 why ?

A Compound with the empirical formula Co(NH_3)_5 BrSO_4 exists in two forms : red and violet. Solution of red gives a precipitate of AgBr on addition of AgNO_3 . The violet form Sives no precipitate on the addition at AgNO_3 but gives a white precipitate on addition of BaCl_2 solution. From these observations draw the structure of each compound and explain the observations.

Chlorobenzene gives a white precipitate with alcoholic silver nitrate solution.

A coordination compound CrCl_3 .4H_2O precipitates silver chloride with AgNO_3 . The molar conductivity of the solution corresponds to a total number of two ions. Write structural formula of the compound and name it.

BETTER CHOICE PUBLICATION-HALOALKANES AND HALOARENES-QUESTIONS
  1. Why the use of chloroform as anesthetic is decreasing ?

    Text Solution

    |

  2. Give one use of freon.

    Text Solution

    |

  3. Iodoform gives a precipitate with AgNO3. Why ?

    Text Solution

    |

  4. What is iodoform test ?

    Text Solution

    |

  5. Write short note on lodoform reaction.

    Text Solution

    |

  6. Why a small amount of ethyl alcohol is usually added to chloroform bot...

    Text Solution

    |

  7. What happens when chloroform is exposed to air and sun light?

    Text Solution

    |

  8. Why is chloroform stored in dark coloured bottles ?

    Text Solution

    |

  9. What happens when chloroform is heated with silver powder ?

    Text Solution

    |

  10. Chloroform contains chlorine but does not give reaction with AgNO3 why...

    Text Solution

    |

  11. Give IUPAC name of D.D.T.

    Text Solution

    |

  12. How will you prepare chloroform from ethanol ? Give reactions of chlor...

    Text Solution

    |

  13. Write short note on Haloform reaction.

    Text Solution

    |

  14. How is DDT prepared from chlorobenzene ? Give the chemical equation on...

    Text Solution

    |

  15. Give the reaction chloroform with alcoholic KOH.

    Text Solution

    |

  16. Explain with example S(N^1) mechanism.

    Text Solution

    |

  17. How tert-butyl bromide reacts with aqueous KOH ? Give the mechanism an...

    Text Solution

    |

  18. Explain SN^2 reactions. What is the preference order of different alky...

    Text Solution

    |

  19. How tert-butyl bromide reacts with aqueous KOH ? Give the mechanism an...

    Text Solution

    |

  20. Give the mechanism of substitution nucleophilic bimolecular, SN^2 reac...

    Text Solution

    |