Question

The ink will eventually spread out in a beaker when it is dropped in water. This process is known as:
A. mixing
B. diffusion
C. effusion
D. None of the above

Answer 1

Hint: The process is defined as the movement of a substance from an area which is in high concentration to an area concentration that is lower, as compared to the previous one. It happens in liquids and gases because their particles randomly move from place to place.

Complete answer:
In chemistry, a mixture forms when two or more substances are combined in such a way that each substance retains its own chemical identity. Chemical bonds between the components are neither broken nor formed in mixture.
Mixtures are of two types mainly Homogeneous Mixtures and Heterogeneous mixtures. Homogeneous Mixtures has a uniform composition of its components throughout its mass whereas heterogeneous mixture has no uniform composition.
Effusion is the process in which a gas escapes from a container through a hole of diameter which is comparatively smaller than the mean free path of the molecules of the gas itself .
Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Diffusion happens in liquids and gases because their particles move freely from one place to another place. Diffusion is an important process for living things; it is how substances move in and out of the cells.
Diffusion is the inter mixing of particles of two different types or categories of particles. So here the particles of ink and particles of water mix thoroughly.

So the correct option will be B that is diffusion.

Note:
Diffusion could be a physical process that refers to the online movement of molecules from a neighborhood of high concentration to 1 of lower concentration. As an example, a gas diffuses very quickly in another gas. An example of diffusion can be explained in the way is the noxious smell of ammonia gas spreads in air.