1.

The size of colloidal particles usually lies in the range

A. \[{{10}^{-5}}-{{10}^{-7}}cm\]
B. \[{{10}^{-7}}-{{10}^{-9}}cm\]
C. \[{{10}^{-3}}-{{10}^{-5}}cm\]
D. \[{{10}^{-2}}-{{10}^{-6}}cm\]
Answer» B. \[{{10}^{-7}}-{{10}^{-9}}cm\]


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