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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. Explain the Changes in Colour of this Indicator Which Take Place During Washing and Rinsing the Shirt. - Science

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ConceptConcept of Acids, Bases and Salts

Question

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.

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

Solution

 When the shirt with a yellow stain of curry is washed with soap, the stain turns reddish brown because soap is basic and turmeric gives a reddish-brown colour when reacts with a base. When rinsed with plenty of water, the reddish-brown stain turns yellow again due to removal soap.

  Is there an error in this question or solution?

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Solution 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. Explain the Changes in Colour of this Indicator Which Take Place During Washing and Rinsing the Shirt. Concept: Concept of Acids, Bases and Salts.
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