Question

18-9 Why does a compound whose visible absorption maximum is at 480 nm (blue-green) appear to be red?

Short answer

The Transmitted light will be complement of the color of absorption at 480 nm.

Step-by-step solution

Definition

Spectrophotometry isa standard and inexpensive technique to measure light absorption or the amount of chemicals in a solution. It uses a light beam which passes through the sample, and each compound in the solution absorbs or transmits light over a certain wavelength

Absorption: The process in which incident radiated energy is retained without reflection or Transmission on passing through the medium.

Absorption

A Compound whose visible absorption maximum at 480 nm (blue-green) because the transmitted light (red) will be complement to the color taht is absorbed(blue-green).