Question

A true solution does not show Tyndall effect, because of the:

• A. Nature of solvent
• B. Amount of solute
• C. Size of the particles
• D. Nature of solute

Hint:

The Tyndall effect is observed when light is scattered by larger particles (colloidal particles) in a medium, not by small particles in a true solution.

Answer 1

The Correct Option is C

A true solution does not display the Tyndall effect because of the size of its particles. The Tyndall effect is a phenomenon where light is scattered by particles in a colloid or in fine suspension. True solutions, such as salt in water or sugar in water, consist of solute particles that are ions or molecules of very small size, typically less than 1 nanometer (nm) in diameter. These particles are too small to scatter visible light; therefore, light passes through the solution without being scattered, making the solution appear clear.

• Nature of solvent: The solvent's nature does not specifically affect the Tyndall effect in a true solution.
• Amount of solute: The concentration does not typically influence whether the Tyndall effect occurs; instead, it's the size of the particles.
• Size of the particles: Correct choice. True solutions have particles so small that they do not scatter light.
• Nature of solute: Similar to solvent, the nature of solute does not influence the Tyndall effect in true solutions on its own. It's the particle size that is crucial.