Question

turmeric stains on white clothes, when washed with soap, turn red.why?​

Answer 1

Answer:

turmeric powder and soap is basic in nature. ... Hence, when soap (which is basic in nature) is scrubbed on the stain, the stain turns red. When the cloth is washed with plenty of water, the soap is removed and the yellow colour of the stain reappears.

Answer 2

because turmeric is a base indicator,

soap is a base therefore, turmeric stains turn red