Ajil Benny Posted March 11, 2021 Share Posted March 11, 2021 When soap water is applied to a paper where a thin layer of turmeric paste is coated , the paper had become red color. When washed with soap the stain of turmeric turns red because turmeric contains the tartaric acid and soap contains sodium hydroxide, a base. ... Therefore, it is the chemical reaction that led to the change in the colour of the stain from yellow to red. Link to comment Share on other sites More sharing options...
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