Question

___________is the part of the dye molecule which when exposed to light will absorb and reflect a certain color.

• A. Chromophore
• B. Auxochrome
• C. Autochrome
• D. None of the above

Answer 1

Answer: (A)

Chromophore

Auxochrome is a Greek word arising from two-word roots; Auxo meaning to
increase and chrome meaning color. An auxochrome is a group of atoms
which will impart a particular color when attached to a chromophore but when present alone, will fail to produce that color.
The chromophore is that part of the molecule which when exposed to visible
light will absorb and reflect a certain color.
Hence option A is correct.