Chemistry
Grade-7
Easy
Question
The size of the particle of colloids are_________.
- More than 1000 nm
- Less than 1000 nm
- More than 100 nm
- Less than 100 nm
Hint:
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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