How does turmeric act as an Acid-Base Indicator?
Answer
- Indicators help us to identify if a substance is an acid or base .
- Turmeric is yellow in colour naturally .
- It changes colour when in a basic substance to red.
- So turmeric in ,
- Acid → Yellow
- Neutral → Yellow
- Base → Red
- This way turmeric can be used as an indicator.
- Example,
- In Hydrochloric Acid (HCl), turmeric remains yellow
- In Sodium Hydroxide (NaOH), turmeric turns red
