Why the stain of a curry on a white cloth becomes reddih brownwhen soap, which is basic in nature, is scrubbed on it?
It turns yellow again when the cloth is washed with a plenty of water. Why?

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Solution

Curry stain on the clothes contains turmeric which turns red in basic solution. Due to this, the stain of a curry on a white cloth becomes reddish brown when soap is scrubbed on it.
On washing with plenty of water, the curry stain turns yellow again because water is neutral and in neutral solution, turmeric remains yellow.

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Similar questions

A white shirt has a yellow stain of curry. When soap is rubbed on this shirt during washing, the yellow stain turns reddish - brown. On rinsing the shirt with plenty of water, the reddish - brown stain turns yellow again.

(a) Name the natural indicator present in curry stain.

(b) Explain the changes in colour of this indicator which take place during washing and rinsing the shirt.

Q. A yellow curry stain on a white shirt turns red when it is washed with soap. Explain why?

Q. If you get a turmeric (haldi) stain on your clothes while eating food, and try to wash it off with soap, the stain becomes red. Why? Find out how to remove haldi stains from clothes.

The reddish brown stains when clothes are washed with hard water is due to :

Q. On washing with soap, a turmeric stain on the cloth turns to red because
A. soap solution is alkaline.
B. soap solution is acidic.
C. turmeric contains a natural indicator.
D. turmeric contain litmus.
Select the correct alternative.

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Why the stain of a curry on a white cloth becomes reddih brownwhen soap, which is basic in nature, is scrubbed on it?It turns yellow again when the cloth is washed with a plenty of water. Why?

Why the stain of a curry on a white cloth becomes reddih brownwhen soap, which is basic in nature, is scrubbed on it?
It turns yellow again when the cloth is washed with a plenty of water. Why?