Red cabbage leaves, turmeric, coloured petals of some flowers such as Hydrangea, Petunia and Geranium are examples of which of the following category?

Both Option 1 and Option 2 are correct

The correct answer is option 4. Both Option 1 and Option 2 are correct.

Out of the choices you provided, the correct category for red cabbage leaves, turmeric, colored petals of some flowers like Hydrangea, Petunia, and Geranium is Both Option 1 and Option 2 are correct

These substances are classified as:

Acid-base indicators: Because they change color in response to acidic or basic solutions.

Natural indicators: Because they are derived from natural sources like plants and vegetables.

Synthetic indicators, on the other hand, are man-made chemicals designed specifically for acid-base detection. While synthetic indicators often offer a wider range of colors and sharper color changes, these natural options provide a fascinating and accessible way to demonstrate the concept of pH at home or in a classroom.