Question
Question: The dyes which are applied to the fabric in the colourless reduced state and then oxidised to colour...
The dyes which are applied to the fabric in the colourless reduced state and then oxidised to coloured state are called
A
Vat dyes
B
Disperse dyes
C
Triphenyl methane dye
D
Azo dyes
Answer
Vat dyes
Explanation
Solution
Vat dyes are insoluble compounds which reduction give soluble (leucoform) product. The product may be either coloured or colourless a have affinity for specific fabrics e.g. Indigo.