SC-1115
pH scale
Lower Sec Science · Secondary 2 · Medium · pH scale
A student adds a few drops of universal indicator to a solution. The solution turns red. Which statement about the solution is correct?
- It is a strong acid with pH much less than 7.
- It is a weak acid with pH just below 7.
- It is neutral with pH 7.
- It is an alkali with pH greater than 7.
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