Chemistry
Grade-7
Easy

Question

The size of the particle of colloids are_________.

  1. More than 1000 nm
  2. Less than 1000 nm
  3. More than 100 nm
  4. Less than 100 nm

hintHint:

Less than 1000 nm.

The correct answer is: Less than 1000 nm


    Colloidal particles are larger than single molecules but small enough to float. They have a significant surface area per unit mass due to their small size.
    The sizes of colloidal particles range from 1 to 1000 nm, or from 10^-9 to 10^-6 m.

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