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.
• B. They are made artificially.
• C. They can act as indicators.
• D. They can't be used as indicators.

Answer 1

The correct option is C 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.