Question

Why does a curry stain turn red when washed with a detergent?

Answer 1

curry stain turns red when it is washed with detergent because curry contain turmeric which is indicator and detergent is a base and this

turned when we watch to taste by indicator.

Answer 2

Answer:

Hi friend, we know that turmeric is an indicator which changes its yellow colour into reddish brown when come in contact with solution of base.We know that soap solution is base and thus , when turmeric stain is washed with soap a base turns reddish brown.