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Lyophilic colloids that shows the property of protecting lyophobic colloids are also called as:
- a)Protective colloids
- b)Non-Protective colloids
- c)Both protective and non protective
- d)Associated colloids
Correct answer is option 'A'. Can you explain this answer?
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Lyophilic colloids that shows the property of protecting lyophobic col...
Protective colloids
Protective colloids, also known as protective agents or protective sols, are lyophilic colloids that possess the property of protecting lyophobic colloids from coagulation or precipitation. They form a protective layer around the lyophobic colloidal particles, preventing their aggregation and maintaining their stability.
Lyophilic and lyophobic colloids
To understand the concept of protective colloids, it is important to differentiate between lyophilic and lyophobic colloids.
- Lyophilic colloids: These are substances that have an affinity for the dispersion medium (usually a liquid). They readily form colloidal solutions and remain stable without any additional stabilizing agents. Examples include gelatin, starch, and proteins.
- Lyophobic colloids: These are substances that have no affinity for the dispersion medium. They require the addition of stabilizing agents to form and maintain colloidal solutions. Examples include metals like gold and silver, as well as inorganic compounds like sulfur.
Property of protecting lyophobic colloids
The property of protecting lyophobic colloids is exhibited by lyophilic colloids. When a protective colloid is added to a lyophobic colloid, it forms a protective layer around the lyophobic particles. This layer acts as a barrier, preventing the particles from coming into direct contact with each other.
Mechanism of protection
The protection of lyophobic colloids by lyophilic colloids can be explained by different mechanisms:
1. Electrostatic stabilization: The protective colloid particles are charged and create a double layer around the lyophobic particles. The repulsion between like charges prevents the particles from coagulating.
2. Steric stabilization: The protective colloid particles adsorb onto the surface of the lyophobic particles and form a thick layer. This layer hinders the approach of other particles, preventing their aggregation.
3. Solvation stabilization: The protective colloid particles have a high affinity for the dispersion medium, forming a solvation shell around the lyophobic particles. This solvation shell prevents the particles from coming into contact and coagulating.
Conclusion
In conclusion, lyophilic colloids that exhibit the property of protecting lyophobic colloids are known as protective colloids. They form a protective layer around the lyophobic particles, preventing their coagulation or precipitation. This property is essential for maintaining the stability of lyophobic colloidal systems.
Protective colloids, also known as protective agents or protective sols, are lyophilic colloids that possess the property of protecting lyophobic colloids from coagulation or precipitation. They form a protective layer around the lyophobic colloidal particles, preventing their aggregation and maintaining their stability.
Lyophilic and lyophobic colloids
To understand the concept of protective colloids, it is important to differentiate between lyophilic and lyophobic colloids.
- Lyophilic colloids: These are substances that have an affinity for the dispersion medium (usually a liquid). They readily form colloidal solutions and remain stable without any additional stabilizing agents. Examples include gelatin, starch, and proteins.
- Lyophobic colloids: These are substances that have no affinity for the dispersion medium. They require the addition of stabilizing agents to form and maintain colloidal solutions. Examples include metals like gold and silver, as well as inorganic compounds like sulfur.
Property of protecting lyophobic colloids
The property of protecting lyophobic colloids is exhibited by lyophilic colloids. When a protective colloid is added to a lyophobic colloid, it forms a protective layer around the lyophobic particles. This layer acts as a barrier, preventing the particles from coming into direct contact with each other.
Mechanism of protection
The protection of lyophobic colloids by lyophilic colloids can be explained by different mechanisms:
1. Electrostatic stabilization: The protective colloid particles are charged and create a double layer around the lyophobic particles. The repulsion between like charges prevents the particles from coagulating.
2. Steric stabilization: The protective colloid particles adsorb onto the surface of the lyophobic particles and form a thick layer. This layer hinders the approach of other particles, preventing their aggregation.
3. Solvation stabilization: The protective colloid particles have a high affinity for the dispersion medium, forming a solvation shell around the lyophobic particles. This solvation shell prevents the particles from coming into contact and coagulating.
Conclusion
In conclusion, lyophilic colloids that exhibit the property of protecting lyophobic colloids are known as protective colloids. They form a protective layer around the lyophobic particles, preventing their coagulation or precipitation. This property is essential for maintaining the stability of lyophobic colloidal systems.
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Lyophilic colloids that shows the property of protecting lyophobic col...
Lyophilic colloids have a unique property of protecting lyophobic colloids. When a lyophilic sol is added to the lyophobic sol, the lyophilic particles form a layer around lyophobic particles and thus protect the latter from electrolytes. Lyophilic colloids use for this purpose are called protective colloids.
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Lyophilic colloids that shows the property of protecting lyophobic colloids are also called as:a)Protective colloidsb)Non-Protective colloidsc)Both protective and non protectived)Associated colloidsCorrect answer is option 'A'. Can you explain this answer?
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