Class 12 Exam > Class 12 Questions > Select correct statement (s) :a)hydrophilic c...
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Select correct statement (s) :
- a)hydrophilic colloid is a colloid in which there is a strong attraction between the dispersed phase and water
- b)hydrophobic colloid is a colloid in which there is a lack of attraction between the dispersed phase and water
- c)hydrophobic soils are often formed when a solid crystallises rapidly from a chemical reaction or a supersaturated solution
- d)all of the above
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Select correct statement (s) :a)hydrophilic colloid is a colloid in wh...
Hydrophilic colloids: These are water-loving colloids. The colloid particles are attracted to the water. They are also known as reversible sols. Examples include Agar, gelatin, pectin, etc
Hydrophobic colloids: These are the opposite in nature to hydrophilic colloids. The colloid particles are repelled by water. They are also called irreversible sols. Examples include Gold sols, clay particles, etc
therefore than can easily form supersaturated solution
Hydrophobic colloids: These are the opposite in nature to hydrophilic colloids. The colloid particles are repelled by water. They are also called irreversible sols. Examples include Gold sols, clay particles, etc
therefore than can easily form supersaturated solution
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Select correct statement (s) :a)hydrophilic colloid is a colloid in wh...
Explanation:
The correct statement is option D, which states that all of the statements (a), (b), and (c) are correct.
Hydrophilic Colloid:
- A hydrophilic colloid is a colloid in which there is a strong attraction between the dispersed phase and water.
- The dispersed phase in a hydrophilic colloid has an affinity for water, and it can easily form stable suspensions in water.
- Examples of hydrophilic colloids include substances like gelatin or starch, which can absorb water and swell.
Hydrophobic Colloid:
- A hydrophobic colloid is a colloid in which there is a lack of attraction between the dispersed phase and water.
- The dispersed phase in a hydrophobic colloid repels water and does not readily form stable suspensions in water.
- Examples of hydrophobic colloids include substances like oils or fats, which do not mix well with water.
Hydrophobic Soils:
- Hydrophobic soils are often formed when a solid crystallizes rapidly from a chemical reaction or a supersaturated solution.
- When this rapid crystallization occurs, the soil particles can become coated with a hydrophobic substance, such as waxy compounds.
- This hydrophobic coating on the soil particles causes them to repel water, making the soil difficult to wet and retain moisture.
- Hydrophobic soils can lead to issues such as poor water infiltration, increased runoff, and reduced plant growth.
Conclusion:
All of the statements (a), (b), and (c) are correct. The first two statements describe the characteristics of hydrophilic and hydrophobic colloids, while the third statement explains the formation of hydrophobic soils.
The correct statement is option D, which states that all of the statements (a), (b), and (c) are correct.
Hydrophilic Colloid:
- A hydrophilic colloid is a colloid in which there is a strong attraction between the dispersed phase and water.
- The dispersed phase in a hydrophilic colloid has an affinity for water, and it can easily form stable suspensions in water.
- Examples of hydrophilic colloids include substances like gelatin or starch, which can absorb water and swell.
Hydrophobic Colloid:
- A hydrophobic colloid is a colloid in which there is a lack of attraction between the dispersed phase and water.
- The dispersed phase in a hydrophobic colloid repels water and does not readily form stable suspensions in water.
- Examples of hydrophobic colloids include substances like oils or fats, which do not mix well with water.
Hydrophobic Soils:
- Hydrophobic soils are often formed when a solid crystallizes rapidly from a chemical reaction or a supersaturated solution.
- When this rapid crystallization occurs, the soil particles can become coated with a hydrophobic substance, such as waxy compounds.
- This hydrophobic coating on the soil particles causes them to repel water, making the soil difficult to wet and retain moisture.
- Hydrophobic soils can lead to issues such as poor water infiltration, increased runoff, and reduced plant growth.
Conclusion:
All of the statements (a), (b), and (c) are correct. The first two statements describe the characteristics of hydrophilic and hydrophobic colloids, while the third statement explains the formation of hydrophobic soils.
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Select correct statement (s) :a)hydrophilic colloid is a colloid in which there is a strong attraction between the dispersed phase and waterb)hydrophobic colloid is a colloid in which there is a lack of attraction between the dispersed phase and waterc)hydrophobic soils are often formed when a solid crystallises rapidly from a chemical reaction or a supersaturated solutiond)all of the aboveCorrect answer is option 'D'. Can you explain this answer?
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Select correct statement (s) :a)hydrophilic colloid is a colloid in which there is a strong attraction between the dispersed phase and waterb)hydrophobic colloid is a colloid in which there is a lack of attraction between the dispersed phase and waterc)hydrophobic soils are often formed when a solid crystallises rapidly from a chemical reaction or a supersaturated solutiond)all of the aboveCorrect answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Select correct statement (s) :a)hydrophilic colloid is a colloid in which there is a strong attraction between the dispersed phase and waterb)hydrophobic colloid is a colloid in which there is a lack of attraction between the dispersed phase and waterc)hydrophobic soils are often formed when a solid crystallises rapidly from a chemical reaction or a supersaturated solutiond)all of the aboveCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select correct statement (s) :a)hydrophilic colloid is a colloid in which there is a strong attraction between the dispersed phase and waterb)hydrophobic colloid is a colloid in which there is a lack of attraction between the dispersed phase and waterc)hydrophobic soils are often formed when a solid crystallises rapidly from a chemical reaction or a supersaturated solutiond)all of the aboveCorrect answer is option 'D'. Can you explain this answer?.
Select correct statement (s) :a)hydrophilic colloid is a colloid in which there is a strong attraction between the dispersed phase and waterb)hydrophobic colloid is a colloid in which there is a lack of attraction between the dispersed phase and waterc)hydrophobic soils are often formed when a solid crystallises rapidly from a chemical reaction or a supersaturated solutiond)all of the aboveCorrect answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Select correct statement (s) :a)hydrophilic colloid is a colloid in which there is a strong attraction between the dispersed phase and waterb)hydrophobic colloid is a colloid in which there is a lack of attraction between the dispersed phase and waterc)hydrophobic soils are often formed when a solid crystallises rapidly from a chemical reaction or a supersaturated solutiond)all of the aboveCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select correct statement (s) :a)hydrophilic colloid is a colloid in which there is a strong attraction between the dispersed phase and waterb)hydrophobic colloid is a colloid in which there is a lack of attraction between the dispersed phase and waterc)hydrophobic soils are often formed when a solid crystallises rapidly from a chemical reaction or a supersaturated solutiond)all of the aboveCorrect answer is option 'D'. Can you explain this answer?.
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