Q902
When a detergent is added to pure water, its surface tension
A.
Increases
B.
Decreases
AnswerC.
Remains constant
D.
Becomes infinite
Answer: Option B
Solution
Answer: Option B
Solution:
When detergent is added to water, it decreases the surface tension of the water. Compounds that lower water's surface tension are called surfactants, which work by separating the water molecules from one another.