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Question
Milk is an emulsion in which:
Milk is an emulsion in which:
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Solution
The correct option is C Milk fat is dispersed in water
Explanation for Correct answer:
Option (C) Milk fat is dispersed in water
- The mixture in which one substance of dispersed insoluble particles is suspended throughout the other substance is known as colloids.
- Colloids can be classified on the basis of the phase of the dispersed substance and the phase in which it is dispersed.
- Milk is a colloid in which a liquid is dispersed into a liquid that is, it is an example of an emulsion.
- On the basis of the properties of the dispersed phase and the dispersion, medium Emulsions can be classified into two, Oil in water emulsion and Water in oil emulsion
- In the oil in water(o/w) type of emulsion, the oil will be the dispersed phase and water will be the dispersion medium.
- The best example of o/w emulsion is milk in which the fat globules (act as the dispersed phase) are suspended in water (act as the dispersion medium).
- In Water in the oil(w/o) type, water will be the dispersed phase and oil will be the dispersion medium.
- The best example of w/o emulsion is Margarine (a spread used for flavouring, baking, and working).
- Hence Option C is correct.
Explanation for incorrect answers:
Option (A) A gas is dispersed in water
- Foam is formed when many gas particles are trapped in a liquid or solid.
- Whipped cream and shaving cream are examples of foam
- Hence option A is incorrect.
Option (B) Lactose is dispersed in water
- The milk is of oil in water(o/w) type emulsion.
- In which, the fat globules (act as the dispersed phase) are suspended in water (act as the dispersion medium).
- Hence option C is incorrect.
Option (D) A solid is dispersed in water
- The colloidal suspension with solid particles in a liquid is known as Sol.
- Paint and blood are examples of sol.
- Hence option D is incorrect.
Therefore, milk is an emulsion in which option (C) Milk fat is dispersed in water
Milk fat is dispersed in water
Explanation for Correct answer:
Option (C) Milk fat is dispersed in water
- The mixture in which one substance of dispersed insoluble particles is suspended throughout the other substance is known as colloids.
- Colloids can be classified on the basis of the phase of the dispersed substance and the phase in which it is dispersed.
- Milk is a colloid in which a liquid is dispersed into a liquid that is, it is an example of an emulsion.
- On the basis of the properties of the dispersed phase and the dispersion, medium Emulsions can be classified into two, Oil in water emulsion and Water in oil emulsion
- In the oil in water(o/w) type of emulsion, the oil will be the dispersed phase and water will be the dispersion medium.
- The best example of o/w emulsion is milk in which the fat globules (act as the dispersed phase) are suspended in water (act as the dispersion medium).
- In Water in the oil(w/o) type, water will be the dispersed phase and oil will be the dispersion medium.
- The best example of w/o emulsion is Margarine (a spread used for flavouring, baking, and working).
- Hence Option C is correct.
Explanation for incorrect answers:
Option (A) A gas is dispersed in water
- Foam is formed when many gas particles are trapped in a liquid or solid.
- Whipped cream and shaving cream are examples of foam
- Hence option A is incorrect.
Option (B) Lactose is dispersed in water
- The milk is of oil in water(o/w) type emulsion.
- In which, the fat globules (act as the dispersed phase) are suspended in water (act as the dispersion medium).
- Hence option C is incorrect.
Option (D) A solid is dispersed in water
- The colloidal suspension with solid particles in a liquid is known as Sol.
- Paint and blood are examples of sol.
- Hence option D is incorrect.
Therefore, milk is an emulsion in which option (C) Milk fat is dispersed in water
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