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Question

Which of the following is true about anthocyanin pigments in red cabbage and rose petals?

A
They are blue in acidic and red in basic solutions.
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B
They are made artificially.
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C
They can act as indicators.
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D
They can't be used as indicators.
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Solution

The correct option is A They can act as indicators.
Anthocyanin pigments are present in many plant parts which are natural indicators. They are red in acidic and blue in basic solutions. They are water-soluble pigments that may appear red, purple, or blue depending on the pH.

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