The mixture of Blood plasma, Metal alloys, etc are pure example of ______________________ mixture.

  1. Mixture of components
  2. Heterogeneous
  3. Homogeneous
  4. None of the above

Answer (Detailed Solution Below)

Option 3 : Homogeneous
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Detailed Solution

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Key Points

Mixture-

  • A mixture is described as a result of combining two or more substances.
  • Each substance maintains its chemical identity.
  • In other words, within the components of a mixture, a chemical reaction does not occur. 
  • Homogeneous mixture:
    • A homogeneous mixture is a liquid, gaseous & solid mixture.
    • Throughout any given sample, it has the same proportions of its components 
    • The mixture has the composition throughout & the same uniform appearance in every step
    • Many homogeneous mixtures are generally referred to as solutions.
  • Example:
    • Some examples of homogeneous mixtures:
      including air, mixture, saline solution, most alloys, bitumen, blood plasma, etc.

Mistake Points

  • The question asks about 'blood plasma' and not 'blood', which are not the same.
  • Blood plasma is a light yellowish liquid that forms about 55% of blood.
  • Blood comprises blood plasma and the blood cells like RBCs, WBCs, etc.
  • Therefore, blood plasma is a homogeneous mixture, while blood is a heterogeneous mixture.
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