Question

3. Why do soaps and toothpastes contain a base? (Hint: Bases
neutralise acids.)

Plz help me to find the exact answer .... ​

Answer 1

Answer:

toothpaste contains base because toothpaste is used for cleaning out teeth.. we eat food so it gets acidic and stick to our teeth..so toothpaste contain base to react with the acids present in teeth to form salt and water..

Explanation:

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Answer 2

Answer:

The base also neutralises the acid that is produced by the bacterial substances in the mouth. In our teeth, there is sticky substance called PLAQUE. ... Bacteria produces acid. To neutralize this effect we have basic susbtances in the toothpastes.