When soap is scrubbed on a stain of curry on | vedclass

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Question

(B) Curry contains turmeric,which acts as a natural acid-base indicator.Soap is basic in nature.When soap is applied to the turmeric stain,the basic m

Vedclass · Accepted Answer

Turmeric acts as a natural acid-base indicator.

Vedclass · Answer

(B) Curry contains turmeric,which acts as a natural acid-base indicator.Soap is basic in nature.When soap is applied to the turmeric stain,the basic medium causes the turmeric to turn reddish-brown.When the cloth is washed with plenty of water,the soap is rinsed away,removing the basic medium.As the medium is no longer basic,the turmeric returns to its original yellow color.

When soap is scrubbed on a stain of curry on a white cloth,why does it become reddish-brown,and why does it turn yellow again when the cloth is washed with plenty of water?

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