Question

A liquid aerosol is a colloidal system of
A.A liquid dispersed in a solid
B.A liquid dispersed in a gas
C.A gas dispersed in a liquid
D.A solid dispersed in a gas

Answer 1

Hint: A suspension of small solid particles or liquid droplets in air or another gas is known as an aerosol. Aerosols may be either normal or man-made. Fog or mist, smoke, tree exudates, and geyser steam are examples of natural aerosols. Particulate air pollution and smoke are examples of anthropogenic aerosols.

Complete answer:
A suspended structure of solid or liquid particles in a gas is known as an aerosol. Both the particles and the suspending steam, which is normally air, make up an aerosol. During World War I, Frederick G. Donnan is said to have coined the word "aerosol" to describe aero-solutions, or bubbles of small particles in the air. This term evolved from the term hydrosol, which refers to a colloid structure in which water serves as the distributed medium. Primary aerosols are made up of particles that are added directly into the gas; secondary aerosols are made up of particles that are converted from gas to particle.
Aerosol is a colloidal dispersion of solid or liquid particles in a gas. Smoke or fog, for example.
A colloidal structure in which the distributed phase is made up of solid or liquid particles and the dispersion medium is a gas, most often an aerosol. An aerosol may, for example, spray fine particles of a material such as paint, asthma drug, or insecticide.
In the use of man-made materials, liquid aerosols are often created by nebulization or spraying (e.g., pesticides and paints).
A liquid aerosol is a liquid that has been dispersed in a gas.

Hence, option (B) is correct.

Note:
A dispersion is a mechanism in which one material's scattered particles are spread in a continuous process of another material. The two processes may be in the same state of matter or in separate states. The size of the particles in contrast to the particles in the continuous process, whether or not precipitation happens, and the existence of Brownian motion are all used to classify dispersions. Suspensions are dispersions of large enough particles to enable sedimentation, while colloids and solutions are dispersions of smaller particles.