Air is a mixture but not compound. Its constituents can be separated. For example: oxygen, nitrogen etc.

If it is pure, the substance is either an element or a compound. If a substance can be separated into its elements, it is a compound. If a substance is not chemically pure, it is either a heterogeneous mixture or a homogeneous mixture.

Answer: hi friend. iodine vapour compound is a mixture.

Calcium (Ca), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table. It is the most abundant metallic element in the human body and the fifth most abundant element in Earth’s crust.

Explanation: Pepper can be dissolved while water, vinegar, and soy sauce is the one who is dissolving that is why pepper is a solute.

A mixture of salt and pepper is not a solution. For example, in a solution of salt in water, the solute is salt, and solvent is water.

Pepper works too, because you can see all of the different pieces that make up pepper. A homogeneous mixture is a mixture that is really well mixed. It’s so well mixed that you can’t see the different parts of the mixture. It all looks uniform.

Milk is not a solution because it has more than one phase suspended in it — it has a liquid phase and a solid phase. Unhomogenized milk is not a solution, it’s a suspension because the fat (aka cream) will separate from the rest of the milk and rise to the top, since fat is less dense than water.

Blood as a near-“ideal” emulsion: a retrospective on the concept of the red cell as a fluid drop, its implications for the structure of the red cell membrane. Biorheology.

Fog is a colloidal solution in which water (liquid, dispersed phase) is dispersed in the air (gas, dispersion medium).

A liquid dispersed in a gas is referred to as a fog. As we can see fog is an example of a colloid of tiny particles of water vapor and air. > Therefore, Fog is a colloidal solution of liquid dispersed in gas.

A colloid is any material in which tiny particles of one substance are spread through a larger volume of another substance. The tiny particles do not dissolve. Fog is a colloid in which drops of liquid water are spread through the air.

A colloid is a heterogeneous mixture in which the dispersed particles are intermediate in size between those of a solution and a suspension….Examples of Colloids.

colloid. a mixture of two substances which are immiscible (see MISCIBLE), but where the particles of one are too small to settle out, and so remain suspended indefinitely. Glue is a colloid of animal gelatin in water; the water is defined as the matrix and the gelatin as the inclusion.

Air is a solution. The term solution indicates a homogeneous mixture. Air is a solution of varying gases and particles.

Butter and mayonnaise are examples of a class of colloids called emulsions. An emulsion is a colloidal dispersion of a liquid in either a liquid or a solid. A stable emulsion requires an emulsifying agent to be present. Mayonnaise is made in part of oil and vinegar.

Milk is an emulsified colloid of liquid butterfat globules dispersed within a water-based solution.

Toothpaste is a colloid, because it’s part solid and part liquid. A colloid is a heterogeneous mixture of two substances of different phases. Shaving cream and other foams are gas dispersed in liquid. Jello, toothpaste, and other gels are liquid dispersed in solid.

Combining different substances can result in five main types of colloid mixtures: aerosols, foams, emulsions, sols and gels. Some of these colloids exist naturally in the world, while others are man-made products.

When particles of a substance are evenly and microscopically distributed throughout another substance then that solution is known as colloid. Thus, we can conclude that out of the given options honey does not settles down due to its viscosity and therefore it is not a colloid.

Colloids are common in everyday life. Some examples include whipped cream, mayonnaise, milk, butter, gelatin, jelly, muddy water, plaster, colored glass, and paper. Every colloid consists of two parts: colloidal particles and the dispersing medium.

Examples of Colloids in Daily Life

• Liquid aerosol. The aerosol sprays that we either use as personal perfumatory products usually contain aerosol.
• Solid aerosol. The naturally occurring smoke or man-made fire smoke carries suspended particles in the air.
• Foam.
• Emulsion.
• Gels.
• Sols.
• Solid sols.

Tyndall effect, also called Tyndall phenomenon, scattering of a beam of light by a medium containing small suspended particles—e.g., smoke or dust in a room, which makes visible a light beam entering a window.

A sol is a colloid made out of very small solid particles in a continuous liquid medium. Sols are quite stable and show the Tyndall effect. Examples include blood, pigmented ink, cell fluids, paint, antacids and mud.