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Volume of a colloidal particle, Vc as compared to the volume of a solute particle in a true solution, Vs could be

$\dfrac{\text{V}_\text{c}}{\text{V}_\text{s}} \approx 1$
$\dfrac{\text{V}_\text{c}}{\text{V}_\text{s}} \approx 10^{–3}$
$\dfrac{\text{V}_\text{c}}{\text{V}_\text{s}} \approx 10^{3}$
$\dfrac{\text{V}_\text{c}}{\text{V}_\text{s}} \approx 10^{23}$
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