Question

A solution tested in the laboratory shows pH 14. Which of the following statements best describes this solution? A. It is a highly acidic solution with a high hydrogen ion concentration. B. It is a highly alkaline solution with a high hydrogen ion concentration. C. It is a highly basic solution with a high hydrogen ion concentration.

Answer 1

B...the higher the pH, the more basic...this rules out the solution being acid and an alkali is defined as a soluble base, as you're testing a solution we know it is a soluble base.

Answer 2

pH 1 - 6 = Acids
pH 7 = Neutral
pH 8 - 14 = Bases

An alkaline is a base that is very soluble in water.

Since we know the solution has a ph of 14, it cannot be A, since A is an acid. It can however be B or C. I'd say that the most logical answer would be B, because no testing has been done for other alkaline properties.