Q. When a pinch of salt or any other salt which is soluble in water is added to water, its surface tension
A) Increases
B) Decreases
C) May increase or decrease depending upon salt
D) None of the above
Explanation
(a) When a highly soluble salt (like sodium chloride) is dissolved in water, the surface tension of water increases
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.