CH-1097
pH scale
Chemistry · Secondary 4 · Medium · pH scale
A student tests an unknown solution with universal indicator and obtains a pH value of 3. Which statement about the solution is correct?
- It is a strong alkali with a low concentration of H⁺ ions.
- It is a weak alkali with a high concentration of OH⁻ ions.
- It is an acidic solution with a relatively high concentration of H⁺ ions.
- It is a neutral solution with equal concentrations of H⁺ and OH⁻ ions.
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