Which natural indicator turns dark pink in an acidic solution and green in a basic solution?
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A.
Turmeric
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B.
Litmus
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C.
China rose (Hibiscus)
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D.
Methyl orange
Correct Answer:
C. China rose (Hibiscus)
Explanation:
China rose, also known as Hibiscus, is a natural indicator that changes its appearance based on the acidity or alkalinity of a substance. When added to an acidic solution, the indicator turns a dark pink or magenta color. In contrast, it reacts with basic solutions by changing to a green hue. Other indicators like turmeric, litmus, and methyl orange have different color transitions: turmeric remains yellow in acid and turns red in base, while litmus turns red in acid and blue in base.
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