A molecule that has an absorption spectrum showing maximum absorption within the wavelengths of visible light is
A) a pigment.
B) a quantum.
C) a photon.
D) electromagnetic radiation.
E) a reducing agent.

Question

Quizplus · Accepted Answer

A pigment is a molecule that absorbs certain wavelengths of light and reflects or transmits others. The fact that this molecule's absorption spectrum shows maximum absorption within the wavelengths of visible light suggests that it is a pigment, because visible light is the portion of the electromagnetic spectrum that humans can see.

A Molecule That Has an Absorption Spectrum Showing Maximum Absorption