Question

Which element would most likely form a compound whose water solution is colored?

A) Mg
B) Cu
C) P
D) H

Answer 1

The element that most likely forms a colored water solution is Cu - copper. So, the option is B.

Step-by-step explanation:

Copper (Cu) is the element most likely to form a compound that creates a colored water solution because it is a transition metal capable of producing colorful complexes. They are known for forming compounds that can be colored when dissolved in water. Transition metals have d-orbitals that allow for electron transitions that absorb light at certain wavelengths, resulting in colorful solutions. An example of such a compound is copper(II) sulfate, which forms a bright blue solution.

Therefore, B. Cu is the correct option.