Which of the following has the highest pH?
A) pure water.
B) concentrated sugar solution.
C) concentrated sodium hydroxide solution.
D) gastric fluid.

Question

Quizplus · Accepted Answer

Concentrated sodium hydroxide solution has the highest pH because it is a strong base and completely dissociates in water, releasing a high quantity of hydroxide ions (OH-) which makes the solution highly alkaline. The pH of pure water is neutral (pH 7), concentrated sugar solution is slightly acidic (pH below 7), and gastric fluid is acidic (pH between 1.5-3.5).

Which of the Following Has the Highest PH