Question

A toothpaste contains soap, which reduces the surface tension and helps it spread freely in mouth.

• A. True
• B. False

Answer 1

The correct option is A

True

Surface tension is the elastic tendency of a fluid which makes it acquire the least surface area possible. Toothpaste contains soap, which reduces the surface tension and helps it spread freely in the mouth as less the surface tension of a fluid, more surface area it will acquire. Thus, the given statement is true.