SSC MTS EXAM

SSC

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is surface tension?
A
The inward force that maximizes the surface area of a liquid
B
The outward force that maximizes the surface area of a liquid
C
The outward force that minimizes the surface area of a liquid
D
The inward force that minimizes the surface area of a liquid
Explanation: 

Detailed explanation-1: -Surface tension is the tendency of liquid surfaces at rest to shrink into the minimum surface area possible. Surface tension is what allows objects with a higher density than water such as razor blades and insects (e.g. water striders) to float on a water surface without becoming even partly submerged.

Detailed explanation-2: -Surface Tension: “The property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules."

Detailed explanation-3: -The tendency of the free surface of liquid always tries to minimize the surface area is known as surface tension.

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