Multiple choice

The size of a colloidal particle is

  1. About 10-10 m

  2. 10 -9 -10 -7 m

  3. Greater than 10 -7 m

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Colloidal particles are intermediate in size between true solutions and suspensions, typically ranging from 1 nanometer to 100 nanometers (10^-9 to 10^-7 m).

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