List of top Chemistry Questions on Surface Tension asked in MHT CET

The work done in increasing the radius of a soap bubble from R to 2R is W. The work done in further increasing its radius from 2R to 3R will be:

What is the ratio of the surface area of two soap bubbles if their radii are in the ratio \(2:3\)?

1000 small water drops of equal size combine to form a big drop. The ratio of final surface energy to the total initial surface energy is

It is easier to spray water to which soap is added because addition of soap to water}

A drop of liquid of density $\rho$ is floating half immersed in a liquid of density $d$. If $T$ is the surface tension, then the diameter of the drop of the liquid is

A needle is $7\text{ cm}$ long. Assuming that the needle is not wetted by water, what is the weight of the needle, so that it should float on water surface? [Surface tension of water = $70\text{ dyn/cm}$, $g = 980\text{ cm/s}^2$]

The potential energy of a molecule on the surface of a liquid compared to the molecules inside the liquid is

By adding soluble impurity in a liquid, angle of contact