CH-1062
pH scale
Chemistry · Secondary 4 · Medium · pH scale
A student measures the pH of four solutions.
W: pH 2.0
X: pH 5.5
Y: pH 8.0
Z: pH 12.0
Which statement about these solutions is correct?
W: pH 2.0
X: pH 5.5
Y: pH 8.0
Z: pH 12.0
Which statement about these solutions is correct?
- W is a stronger acid than X, and Z is a stronger alkali than Y.
- X is a stronger acid than W, and Y is a stronger alkali than Z.
- W and X are both alkaline, while Y and Z are both acidic.
- W and Z are neutral solutions, while X and Y are acidic.
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