Azo dyes are prepared from which of the follo | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Azo dyes are prepared from aniline. First,aniline $(C_6H_5NH_2)$ reacts with $NaNO_2$ and $HCl$ at $273-278 \ K$ to form benzene diazonium chlorid

Vedclass · Accepted Answer

Aniline

Vedclass · Answer

(A) Azo dyes are prepared from aniline. First,aniline $(C_6H_5NH_2)$ reacts with $NaNO_2$ and $HCl$ at $273-278 \ K$ to form benzene diazonium chloride $(C_6H_5N_2^+Cl^-)$. This benzene diazonium chloride then undergoes a coupling reaction with phenols or aromatic amines to produce azo dyes,which are characterized by the $-N=N-$ linkage.

Azo dyes are prepared from which of the following?

Similar Questions

An azo dye is fixed on fabrics by the process applicable in

Malachite and azurite are used respectively as:

Fluorescein,a well-known dye,is obtained by the reaction of:

Magenta is

An insoluble coloured compound formed by the action of metallic salts on dyes is known as:

Vedclass Test Series

Exam Paper Generator

Online Exam Module