SC-1136
Indicators
Lower Sec Science · Secondary 2 · Medium · Indicators
A student adds a few drops of universal indicator to an unknown solution and observes that it turns blue. Which statement about the solution is correct?
- It is a strong acid with pH 2.
- It is a weak acid with pH 6.
- It is neutral with pH 7.
- It is alkaline with pH greater than 7.
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