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Which of the following is not correctly matched?
- a)Gelatain - Lyophilic colloid
- b)Gold sol - Lyophilic colloid
- c)Arsenious sulphide - Lyophobic colloid
- d)Ferric hydroxide - Lyophobic colloid
Correct answer is option 'B'. Can you explain this answer?
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Which of the following is not correctly matched?a)Gelatain - Lyophilic...
Gold sol is a Lyophilic colloid.
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Which of the following is not correctly matched?a)Gelatain - Lyophilic...
Lyophilic and Lyophobic colloids
Colloids are heterogeneous mixtures in which the dispersed particles have a size range of 1 nm to 1000 nm. They can be classified into two types based on the interactions between the dispersed phase and continuous phase: Lyophilic and Lyophobic colloids.
Lyophilic colloids are those in which the dispersed phase has a strong affinity for the continuous phase. They are also known as reversible sols because they can be easily converted into gels by changing the conditions such as temperature, pressure, etc. Examples of Lyophilic colloids include gelatin and starch.
Lyophobic colloids are those in which the dispersed phase has no affinity for the continuous phase. They are also known as irreversible sols because they cannot be easily converted into gels. Examples of Lyophobic colloids include arsenic sulfide and ferric hydroxide.
Answer explanation
Gold sol is a type of Lyophilic colloid in which gold particles are dispersed in water. Hence, option B is not correctly matched, and it is the correct answer.
Colloids are heterogeneous mixtures in which the dispersed particles have a size range of 1 nm to 1000 nm. They can be classified into two types based on the interactions between the dispersed phase and continuous phase: Lyophilic and Lyophobic colloids.
Lyophilic colloids are those in which the dispersed phase has a strong affinity for the continuous phase. They are also known as reversible sols because they can be easily converted into gels by changing the conditions such as temperature, pressure, etc. Examples of Lyophilic colloids include gelatin and starch.
Lyophobic colloids are those in which the dispersed phase has no affinity for the continuous phase. They are also known as irreversible sols because they cannot be easily converted into gels. Examples of Lyophobic colloids include arsenic sulfide and ferric hydroxide.
Answer explanation
Gold sol is a type of Lyophilic colloid in which gold particles are dispersed in water. Hence, option B is not correctly matched, and it is the correct answer.
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Which of the following is not correctly matched?a)Gelatain - Lyophilic colloidb)Gold sol - Lyophilic colloidc)Arsenious sulphide - Lyophobic colloidd)Ferric hydroxide - Lyophobic colloidCorrect answer is option 'B'. Can you explain this answer?
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