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Question
Milk is an example of a type of matter called?
Milk is an example of a type of matter called?
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Solution
The correct option is B Homogeneous mixture
Explanation of correct answer:
Option B Homogeneous mixture
- The basic definition of pure substances is that they are substances that are made up of only one type of atom or molecule.
- The physical properties of a pure substance include well-defined melting and boiling points.
- Mixtures can be considered as a combination of different things in which the component elements are individually distinct.
- Pure substances are either elements or compounds while the mixture is a resultant product of any two or more two substances.
- The milk from the cow is a mixture of water, fat, and solids (in the form of milk protein and carbohydrates) which is mixed irrationally.
- The main compounds of milk are lactose and casein and it is also called a colloidal mixture (i.e. in which one substance of microscopically dispersed insoluble or soluble particles is suspended throughout another substance).
- A homogeneous mixture is a solid, liquid, or gaseous mixture that has the same proportions of its components throughout any given sample. Milk is an example of a homogeneous mixture.
- Therefore milk is a mixture, not a pure substance.
- Hence Option B Homogeneous mixture is correct.
Explanation of incorrect answer:
Option A Solution
- A solution is a mixture where particles of the solute are distributed evenly throughout the solvent.
- It has only one phase the solute and the solvent are both liquid, gas, or solid.
- Milk is not a solution because it has more than one phase suspended it has a liquid phase and a solid phase.
- Hence Option A Solution mixture is correct.
Option C Heterogeneous mixture
- A heterogeneous mixture is a solid, liquid, or gaseous mixture that has different proportions of its components throughout any given sample.
- Hence Option C Heterogeneous mixture is correct.
Option D None of these
- Option (B) Homogeneous mixture is correct.
- Hence Option D is none of these is correct
Homogeneous mixture
Explanation of correct answer:
Option B Homogeneous mixture
- The basic definition of pure substances is that they are substances that are made up of only one type of atom or molecule.
- The physical properties of a pure substance include well-defined melting and boiling points.
- Mixtures can be considered as a combination of different things in which the component elements are individually distinct.
- Pure substances are either elements or compounds while the mixture is a resultant product of any two or more two substances.
- The milk from the cow is a mixture of water, fat, and solids (in the form of milk protein and carbohydrates) which is mixed irrationally.
- The main compounds of milk are lactose and casein and it is also called a colloidal mixture (i.e. in which one substance of microscopically dispersed insoluble or soluble particles is suspended throughout another substance).
- A homogeneous mixture is a solid, liquid, or gaseous mixture that has the same proportions of its components throughout any given sample. Milk is an example of a homogeneous mixture.
- Therefore milk is a mixture, not a pure substance.
- Hence Option B Homogeneous mixture is correct.
Explanation of incorrect answer:
Option A Solution
- A solution is a mixture where particles of the solute are distributed evenly throughout the solvent.
- It has only one phase the solute and the solvent are both liquid, gas, or solid.
- Milk is not a solution because it has more than one phase suspended it has a liquid phase and a solid phase.
- Hence Option A Solution mixture is correct.
Option C Heterogeneous mixture
- A heterogeneous mixture is a solid, liquid, or gaseous mixture that has different proportions of its components throughout any given sample.
- Hence Option C Heterogeneous mixture is correct.
Option D None of these
- Option (B) Homogeneous mixture is correct.
- Hence Option D is none of these is correct
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