SC-1123
pH scale
Lower Sec Science · Secondary 2 · Medium · pH scale
A solution has a pH of 3. Another solution has a pH of 9.
Which statement about these two solutions is correct?
Which statement about these two solutions is correct?
- Both solutions are strong acids.
- The pH 3 solution is an acid and the pH 9 solution is an alkali.
- Both solutions are weak alkalis.
- The pH 3 solution is an alkali and the pH 9 solution is an acid.
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