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What change will you observe if you test soap with litmus paper (red and blue)?

What change will you observe if you test soap with litmus paper (red and blue)?

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60787 Points
3 years ago
Soap is the salt of a strong base (NaOH) and a weak acid (carboxylic acid), so a solution of soap in water is basic in nature. Being basic, a soap solution turns red litmus paper blue.

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