Question

i) A white shirt has a yellow stain of curry. When soap is rubbed on this shirt during washing, the yellow stain turns red . On rinsing the shirt with plenty of water, the red stain turns yellow again.
a) Name the natural indicator present in the curry stain.
b) Name a synthetic indicator which will give pink colour with soap solution.

Answer 1

Answer:

Explanation:

(a)   Turmeric

(b)  Phenolphthalein

Answer 2

Answer:

a] Turmeric is the natural indicator

present in the curry stain.

b] Phenolphthalein is such a synthetic indicator which will give pink colour with soap solution.