Colloidal dispersion systems include systems whose particle size is within the range:

Answer options

1. < 10−9 m
2. 10−9 - 10−4 m
3. 10−9 - 10−7 m
4. 10−7 - 10−4 m
5. > 10−4 m

Correct answer

10−9 - 10−7 m

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