The insoluble complex formed between a mordant dye, a metal ion, and the fiber is called a:
Correct answer: B. Lake
- A. Chromogen
- B. Lake
- C. Vat
- D. Pigment
Explanation
The correct answer is Lake. A lake is a type of dye that becomes insoluble through the formation of a complex involving a mordant, which is a metal ion, and the fiber. This structure ensures that the dye adheres to the fiber and does not wash out easily. Chromogen refers to a precursor to a dye, vat refers to a specific dyeing process, and pigment refers to insoluble colorants that do not form complexes with fibers in the same manner.
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About Industrial Chemistry
Industrial chemistry applies chemical reactions and material properties to the manufacture of adhesives, dyes and polymers. Coverage includes addition and condensation polymerisation, thermoplastics and thermosetting polymers, the structural basis of colour in dyes, and how adhesive composition enables bonding between surfaces.
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