Question

What change will you observe if you test soap with litmus paper​

Answer 1

Answer:

When soap is dissolved in water, the solution is alkaline in nature due to the formation of alkali NaOH or KOH. The solution changes the colour of red litmus to blue.

Answer 2

If we test soap with:

Red litmus paper : soap will change colour of red litmus paper to blue. because it is basic in nature.

Blue litmus paper : no change