Question

Suspension is a heterogeneous mixture in which very fine particles of a solid are dispersed in any medium (liquid or gas). Fine particles of the solid remain suspended in the medium.
(A) True
(B) False

Answer 1

Hint :A suspension is a heterogeneous mixture of a fluid that contains solid particles large enough to cause sedimentation in chemistry. The particles may be visible to the naked eye, must be larger than one micrometre, and will settle gradually, but the mixture is only known as a suspension if the particles have not settled out.

Complete Step By Step Answer:
A suspension is a heterogeneous mixture of a fluid that contains solid particles large enough to cause sedimentation in chemistry. The particles may be visible to the naked eye, must be larger than one micrometre, and will settle gradually, but the mixture is only known as a suspension if the particles have not settled out.
A suspension is a heterogeneous mixture in which the solute particles do not dissolve but rather become suspended in the solution and float around freely in the medium. Mechanical agitation and the use of excipients or suspending agents help distribute the internal phase (solid) in the external phase (fluid).
Sand in water is an example of a suspension. If left undisturbed, the suspended particles can be seen under a microscope and will settle over time. This is what separates a suspension from a colloid, which has smaller suspended particles that do not settle. Colloids and suspensions vary from solutions in that the dissolved material (solute) does not remain as a solid and the solvent and solute are combined uniformly.
An aerosol is a gaseous suspension of liquid droplets or small solid particles. Particulates are small dust and soot particles, sea salt, biogenic and volcanogenic sulphates, nitrates, and cloud droplets that are suspended in the atmosphere. The dispersed phase and the dispersion medium are used to classify suspensions; the former is essentially solid, while the latter may be a solid, a liquid, or a gas. High-shear mixing technology has been used to produce many innovative suspensions in modern chemical process industries.
The characteristics properties of suspensions are listed below.
i) The heterogeneous nature of the suspension: a suspension is a heterogeneous structure.
ii) Visibility: A suspension's particles can be seen with the naked eye or under a clear microscope.
iii) Particle Size: The particles in a suspension are of the order of 10-7 make or larger.
iv) Sedimentation: In a suspension, the particles appear to settle down. However, very fine particles remain suspended in the medium.
v) Filtration separation: Filtration may remove larger particles in a suspension from the liquid or air.

Note :
A suspension is a heterogeneous mixture in which the solute particles do not dissolve but rather become suspended in the solution and float around freely in the medium. Mechanical agitation and the use of excipients or suspending agents help distribute the internal phase (solid) in the external phase (fluid).