SC-1105
Indicators
Lower Sec Science · Secondary 2 · Medium · Indicators
A student wants to show that acid rain is more acidic than normal rain. She collects samples of both and adds a few drops of universal indicator to each. The normal rain turns green. Which colour change would show that the acid rain is more acidic?
- It turns red
- It turns dark blue
- It stays green
- It turns purple
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