Colloid kya hai

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A colloid is a mixture in which one substance consisting of microscopically dispersed insoluble particles is suspended throughout another substance. Some definitions specify that the particles must be dispersed in a liquid , [1] while others extend the definition to include substances like aerosols and gels. The term colloidal suspension refers unambiguously to the overall mixture although a narrower sense of the word suspension is distinguished from colloids by larger particle size. A colloid has a dispersed phase the suspended particles and a continuous phase the medium of suspension. The dispersed phase particles have a diameter of approximately 1 nanometre to 1 micrometre. Some colloids are translucent because of the Tyndall effect , which is the scattering of light by particles in the colloid. Other colloids may be opaque or have a slight color.

Colloid kya hai

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In chemistry, a colloid is a mixture of tiny particles that are dispersed in another medium. In contrast, particles in a solution are smaller than this size, while particles in a suspension are larger. As in a solution, the particles in a colloid do not separate upon standing. The particles in a colloid are called the dispersed phase , which is spread throughout the dispersion medium. Colloids are classified as foams, aerosols, emulsions, gels, or sols, depending on the nature of the dispersed phase and dispersion medium. Familiar examples of colloids include mayonnaise, milk, fog, smoke, and gelatin. The Tyndall effect is the scattering of light by the particles in a colloid or fine suspension. A good example is the way a glass of skim milk a colloid shows a flashlight beam, while a glass of salt water a solution does not. It is a quick and easy test that distinguishes a colloid or suspension from a solution. Not all colloids display the Tyndall effect.

Colloid kya hai

Imagine that you are sailing on a yacht. The engine suddenly breaks down and you are stranded in the middle of the ocean. You call the Coast Guard on your radio, but cannot give them an exact location, because your GPS isn't working. Fortunately, you have a smoke flare, which you fire off.

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A colloid is a mixture in which one substance consisting of microscopically dispersed insoluble particles is suspended throughout another substance. Some definitions specify that the particles must be dispersed in a liquid , [1] while others extend the definition to include substances like aerosols and gels. The term colloidal suspension refers unambiguously to the overall mixture although a narrower sense of the word suspension is distinguished from colloids by larger particle size.

They have been the subject of detailed studies for many years. Phase transitions in colloidal suspensions can be studied in real time using optical techniques, [33] and are analogous to phase transitions in liquids. Rigato Testbook Edu Solutions Pvt. HPCL Engineer. Chhattisgarh Teacher. Contents move to sidebar hide. Bihar Police Prohibition Constable. Indian Army Sepoy Pharma. EPFO Assistant.