Which vegetable contains a chemical called anthocyanin that turns pink/reddish in the presence of acid, turns purple when neutral and turns blue or green when mixed with alkaline substances?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Red cabbage.
- Red cabbage contains a chemical called anthocyanin.
- Red cabbage leaves contain a substance called anthocyanin that changes color depending on whether mixed with an acid or a base.
- This pigment is a natural acid-base indicator. It is blue in neutral substances, like plain water.