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Question

Milk is an example of a type of matter called?


A

Solution

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B

Homogeneous mixture

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C

Heterogeneous mixture

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D

None of these

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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

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