What is the best description for a solution with a hydroxide-ion concentration equal to 1 x 10-4m?

Basic solution.

Explanation:

∵ pOH = -log[OH⁻] = - log(1.0 x 10⁻⁴) = 4.

∵ pH + pOH = 14.

∴ pH = 14 - pOH = 14 - 4 = 10.

Since, the pH of the solution is 10 (> 7) and the concentration of [OH⁻]  is 1.0 x 10⁻⁴ (> 1.0 x 10⁻⁷) is a basic solution.

there are no statements provided but here is why:

sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

hope this

1 is the answer to this problem