Question

assertion ( A ) : true solution do not exhibits . tyndall effect . reason ( R ) : particles are very large in size , a. , b. , c. , d.​

Answer 1

Answer:

Assertion is correct but Reason Is wrong

correct reason :-

Particals of true solution are very small so they cannot scatter the light while particals of colloidal solution is big enough to scatter light so Tyndall effect is seen there.

Explanation:

Assertion is correct but Reason Is wrong

Answer 2

Assertion is true and reason is also correct.

Explanation:

Colloidal suspensions display Tyndall effect. True solution do not exhibit Tyndall effect.

• Tyndall effect is the scattering of light as a light beam passes through a colloid. The individual suspension particles scatter and reflect light, making the beam visible.

• The amount of scattering depends on the frequency of the light and density of the particles. As with Rayleigh scattering, blue light is scattered more strongly than red light by the Tyndall effect.

• Particle size for Tyndall effect ranges from 40 to 900 nm whereas particle size in true solution is less than 1 nm.