Question

rohan had noticed yellow spots of vegetable on his shirt. when he immersed his shirt into soap solution the yellow colour of spot changed into red. why had it happened?​

Answer 1

Answer:

Turmeric is a natural indicator which changes its yellow colour into reddish brown when it comes in contact with a solution of base. Hence, when soap (which is basic in nature) is scrubbed on the stain, the stain turns red.

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