CH-1068
pH scale
Chemistry · Secondary 4 · Medium · pH scale
A student measures the pH of four solutions: W, X, Y and Z.
W: pH 2
X: pH 6
Y: pH 8
Z: pH 13
Which statement about these solutions is correct?
W: pH 2
X: pH 6
Y: pH 8
Z: pH 13
Which statement about these solutions is correct?
- W is a weaker acid than X.
- X and Y are both neutral solutions.
- W is more acidic than X, and Z is more alkaline than Y.
- Y is a stronger alkali than Z.
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