question_subject:
question_exam:
stats:
keywords:
The pH scale measures how acidic or basic a substance is, ranging from 0 to 14.
Option 1 is incorrect because a highly alkaline solution would have a pH value greater than 7, not 0. Alkaline solutions are also known as basic solutions.
Option 2 is correct because a solution with a pH value of 0 is highly acidic. This means it has a high concentration of hydrogen ions.
Option 3 is not correct, as a weakly acidic solution would have a pH that is closer to 7, not 0. This indicates a lower concentration of hydrogen ions compared to a stronger acid, which would have a smaller pH value.
Option 4, a neutral solution, is incorrect because it would have a pH of 7 - the middle point of the pH scale, not 0.
In conclusion, a solution with a pH of 0 is considered a highly acidic solution.