Final answer:
Dyes are chemical compounds that define the color of hair dye by absorbing specific wavelengths of light. They have various applications and are commonly used in permanent hair coloring.
Explanation:
Dyes are chemical compounds that define the color of hair dye by absorbing specific wavelengths of light and reflecting others, resulting in colored solutions. These molecules have applications in technology and are commonly used in permanent hair coloring. The process involves a diamino compound, a coupling agent, and an oxidizing agent under basic conditions.
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