Question

when this cloth is washed with plenty of water ,it again turn yellow why?
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Answer 1

Explanation:

when turmeric react with soap it turn into reddish brown. ⇒ When it is washed in water it turns yellow because when turmeric comes in contact with water which is neutral it becomes very dilute and reactions stops.

Answer 2

Answer:

Curry contains turmeric. Turmeric is an indicator which gives red colour with a base since soap is a base so we get red colour...