Which of the following pairs correctly matches a dye type with its application method?

Explanation

The correct answer is Option B: Mordant Dye - Uses a metal salt to form a lake. Mordant dyes require the use of a mordant (typically a metal salt) to fix the dye onto the fiber, making it an essential part of the dyeing process.Option A is incorrect because vat dyes do not form covalent bonds; they require reduction and oxidation processes to adhere to fibers. Option C is incorrect as disperse dyes are not applied directly from a water solution; they are used for synthetic fibers and require a dispersion agent. Option D is incorrect because acid dyes are suited for protein fibers like wool and silk, not cellulose fibers like cotton.