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Paper 3Theory (Core)1 marks
Indicators are used to determine the pH of solutions.
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Effect of Alkalis on Indicators
Alkalis affect the color of various indicators used in chemistry. Litmus, thymolphthalein, and methyl orange are common indicators that change color in response to pH levels.
- a[1]
State the color change of litmus when it is added to an alkaline solution.
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