Home
Class 12
CHEMISTRY
When mercury is dropped over a glass sur...

When mercury is dropped over a glass surface the globules are spherical which is due to its

A

Viscosity

B

Surface tension

C

Fluidity

D

Metallic nature

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Question**: The question asks why mercury forms spherical globules when dropped on a glass surface. 2. **Identifying the Options**: The options provided are: - A) Viscosity - B) Surface tension - C) Fluidity - D) Metallic nature 3. **Analyzing the Properties of Mercury**: Mercury is a liquid metal that exhibits unique properties. One of its significant characteristics is its high surface tension. 4. **Defining Surface Tension**: Surface tension is defined as the tendency of a liquid surface at rest to shrink into the minimum surface area possible. This property causes the molecules at the surface of the liquid to be pulled inward, creating a cohesive effect. 5. **Relating Surface Tension to Shape**: Due to surface tension, mercury droplets minimize their surface area. The shape that has the least surface area for a given volume is a sphere. Therefore, when mercury is dropped on a surface, it forms spherical globules. 6. **Conclusion**: The spherical shape of mercury globules is primarily due to its surface tension, which allows it to minimize its surface area. 7. **Final Answer**: The correct option is B) Surface tension. ---
Promotional Banner

Similar Questions

Explore conceptually related problems

Water drops stick to a glass surface due to

When water is dropped over sodium peroxide, the colourless gas produced is

Consider the charge configuration and a spherical Gaussian surface as shown in the figure. When calculating the flux of the electric field over the spherical surface, the electric field will be due to.

Consider the charge configuration and a spherical Gaussian surface as shown in the figure. When calculating the flux of the electric field over the spherical surface, the electric field will be due to.

The excess pressure due to surface tension inside a spherical drop is 6 units . If eight such drops combine, then the excess pressure due to surface tension inside the larger drop is

When liquid medicine of density rho is to be put in the eye, it is done with the help of a dropper. As the bylb on the top of the dropper is pressed. A drop frons at the opening of the dropper. We wish to estimate the size of the drop. We first assume that the drop formed at the opening is spherical because that requires a minimum increase in its surface energy, To determine the size. We calculate the net vertical force due to the surface tension T when the radius of the drop is R. when this force become smaller than the weight of the drop the drop gets detached from the dropper. If the radius of the opening of the dropper is r, the vertical force due to the surface tension on the drop of radius R (assuming rlt ltR) is

Sharp glass edges are heated for making them smooth (polishing of glass) which is due to its

Explain the following: A very small amount of mercury on placing over a clean glass plate forms a tiny spherical ball.

The excess pressure due to surface tension in a spherical liquid drop of radius r is directly proportional to

Mercury is the only metal which is liquid at 0^@C this is due to its