Home
Class 12
CHEMISTRY
Carbylamine test involves heating a mixt...

Carbylamine test involves heating a mixture of:

A

Alcoholic KOH, methyl iodide, and sodium metal

B

Alcoholic KOH, methyl iodide, and primary amine

C

Alcoholic KOH, chloroform, and primary amine

D

Alcoholic KOH, methyl alcohol, and primary amine

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the Carbylamine test, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Carbylamine Test**: - The Carbylamine test is a qualitative test used to detect the presence of primary amines in a compound. It involves the formation of isocyanides (carbylamines) when primary amines react with chloroform in the presence of a strong base. 2. **Identifying the Reactants**: - The key reactants in the Carbylamine test are: - **Chloroform (CHCl3)**: This is a trihalogenated methane. - **Alcoholic KOH**: A strong base that facilitates the reaction. - **Primary Amine (RNH2)**: The organic compound that contains the amino group we want to test. 3. **Reaction Mechanism**: - When a primary amine is heated with chloroform in the presence of alcoholic KOH, the reaction proceeds as follows: - The primary amine reacts with chloroform to form isocyanides (RNC) and potassium chloride (KCl) along with water. - The general reaction can be summarized as: \[ RNH2 + CHCl3 + 3 KOH \rightarrow RNC + 3 KCl + 3 H2O \] 4. **Conclusion**: - Therefore, the Carbylamine test involves heating a mixture of: - **Chloroform (CHCl3)** - **Alcoholic KOH** - **Primary Amine (RNH2)** ### Final Answer: The Carbylamine test involves heating a mixture of chloroform, alcoholic KOH, and a primary amine. ---
Promotional Banner

Topper's Solved these Questions

  • SAMPLE PAPER 3 (CHEMISTRY)

    ICSE|Exercise QUESTIONS|70 Videos
  • SAMPLE PAPER 05 (CHEMISTRY)

    ICSE|Exercise MULTIPLE CHOICE QUESTIONS|70 Videos

Similar Questions

Explore conceptually related problems

Carbylamine reaction.

Which amine amongst the following will answer positively the carbylamine test (i.e, heating with CHCl_3 and KOH ) ?

Pure nitrogen is prepared in the laboratory by heating a mixture of

Carbylamine test is performed in alcoholic KOH by heating a mixture of:

Carbylamine test is given by........amines.

Test cross involves

Test cross involves

Carbylamine reaction is given by

ICSE-SAMPLE PAPER 01-Questions
  1. Purest form of iron is

    Text Solution

    |

  2. Which of the following mainly exhibits (-2) oxidation state ?

    Text Solution

    |

  3. Carbylamine test involves heating a mixture of:

    Text Solution

    |

  4. The ionization constant of phenol is higher than that of ethanol becau...

    Text Solution

    |

  5. Which of the following is most acidic ?

    Text Solution

    |

  6. When chloroform is heated with aqueous NaOH, it gives :

    Text Solution

    |

  7. Which of the following is not an interhalogen compound ?

    Text Solution

    |

  8. Which one of the following ores is best concentrated by froth floatati...

    Text Solution

    |

  9. Give hydrolysis products of boron trichloride.

    Text Solution

    |

  10. Electrochemical equivalent is the amount of substance which gets depo...

    Text Solution

    |

  11. A solution that obeys Raoult’s law is:

    Text Solution

    |

  12. A substance A(X) B(Y) crystallises in a face centred cubic (fcc) latt...

    Text Solution

    |

  13. In a rock salt structure each Cl^(-) ion is surrounded by:

    Text Solution

    |

  14. Determination of correct molecular mass from Raoult's law is applicabl...

    Text Solution

    |

  15. Which of the following aqueous solutions should have the highest boili...

    Text Solution

    |

  16. The standard electrode potentials of four elements A, B, C and D are -...

    Text Solution

    |

  17. Heating mixture of Cu(2)O and Cu(2)S will give

    Text Solution

    |

  18. The high viscosity and high boiling point of HF is due to :

    Text Solution

    |

  19. Phenol when treated with excess of bromine water gives a white precipi...

    Text Solution

    |

  20. Shape of ClF(3) is :

    Text Solution

    |