Question

which type of mixture has varying sizes of particles that are large enough to cause visual distortions but not large enough to settle or be filtered out of the mixture?
a solution
b homogeneous
c colloid
d suspension

Explanation:

To solve this, we analyze each option:

• Option a (solution): Particles in a solution are very small (dissolved), so they don't cause visual distortions. Eliminate.
• Option b (homogeneous): A homogeneous mixture (like a solution) has uniform composition; particles are too small for visual distortions. Eliminate.
• Option c (colloid): Colloids have particles of intermediate size (larger than solution particles) that scatter light (causing visual effects like Tyndall effect) but don't settle or filter out. This matches the description.
• Option d (suspension): Suspension particles are large enough to settle or be filtered out. Eliminate.

Answer:

c. colloid