객관식
Which of the following best describes what the pH scale indicates?
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17. Acid and Base Equilibrium
The pH Scale
Multiple Choice
On the pH scale, numbers less than 7 indicate a(n):
A
basic solution
B
acidic solution
C
buffered solution
D
neutral solution
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검증된 단계별 안내1
Recall that the pH scale measures the acidity or basicity of a solution, ranging from 0 to 14.
Understand that a pH value of 7 is considered neutral, which corresponds to pure water at 25°C.
Recognize that pH values less than 7 indicate an acidic solution because they have a higher concentration of hydrogen ions (H\_3O\^+).
Note that pH values greater than 7 indicate a basic (alkaline) solution, which has a lower concentration of hydrogen ions.
Therefore, numbers less than 7 on the pH scale correspond to an acidic solution.
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