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Question

The size of the colloidal particles may range from________.


  1. 1 to 10 mm

  2. 1 to 100 pm

  3. 1 to 1000 nm

  4. 10 to 100 pm

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Solution

The correct option is C

1 to 1000 nm


Explanation of the correct answer:

The correct answer is option C:

  1. Small solid particles known as colloidal particles are dispersed in a fluid phase.
  2. The size of the particles in a colloidal state of matter ranges from 1 nm to 1000 nm.
  3. Colloidal systems are those that contain scattered particles in this range.

Explanation of the incorrect answers:

Options A, B, and D:

  1. The size of the colloidal particles ranges from 1 to 1000 nm.
  2. Hence, these options are incorrect.

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