A) \[{{10}^{-7}}-{{10}^{-9}}cm\]
B) \[{{10}^{-9}}-{{10}^{-11}}cm\]
C) \[{{10}^{-5}}-{{10}^{-7}}cm\]
D) \[{{10}^{-2}}-{{10}^{-3}}cm\]
Correct Answer: C
Solution :
The size of colloidal particles is in the range of \[100\,\,nm\] to \[1\,\,nm\] or \[{{10}^{-5}}cm\] to\[{{10}^{-7}}cm\].
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