NidhraNair
⭕️Remember that in true solutions, solute dissolves completely in the solvent.
⭕️The solute particles are present at their molecular size i.e. well below the size of a particle required to exhibit light scattering dispersion (the Tyndall effect).
⭕️the particles in colloids, in most true solutions, are large enough to scatter visible light.
⭕️In true solutions the size of the particles is too small to be seen by naked eye and too small for light to be scattered.
⭕️whereas in a colloidal solution the size of the particles is not so big to be seen individually by the naked eye .
⭕️colloidal sol is big enough to scatter light and that's why it shows tyndall effect.
Answers & Comments
⭕️The solute particles are present at their molecular size i.e. well below the size of a particle required to exhibit light scattering dispersion (the Tyndall effect).
⭕️the particles in colloids, in most true solutions, are large enough to scatter visible light.
⭕️In true solutions the size of the particles is too small to be seen by naked eye and too small for light to be scattered.
⭕️whereas in a colloidal solution the size of the particles is not so big to be seen individually by the naked eye .
⭕️colloidal sol is big enough to scatter light and that's why it shows tyndall effect.