Question

What is Tyndall effect? Aqueous NaCl solution does not show Tyndall effect whereas a mixture of
water and ink shows this effect. Why?

Answer 1

Answer:

sodium chloride(salt solution) is known as true solutions because the particles of sodium chloride and water are mixed so that we cannot distinguish one from other. ... Whereas Milk solution particles are bigger enough ( in between 1nm to 100nm) to scatter the light passing through it....14-Mar-2018

Answer 2

Explanation:

The phenomenon of scattering of light by particles in a colloid or in a very fine suspension is called tyndall effect. The individual suspension particles scatter and reflect light, making the beam visible.

Actually, NaCl does not show Tyndall effect because it forms a true solution and particle size of the true solution is very small, so it can't scatter the beams of light, whereas, mixture of water and ink, they form colloidal solution and it can't scatter the beam of light.

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