Question

Which of the following will show Brownian motion?

Starch solution

Salt solution

Sugar solution

Vinegar

Answer 1

Salt solution shows Brownian motion.

Answer 2

The Salt solution shows Brownian motion:

EXPLANATION:

Brownian motion is a "random movement of particles" in a fluid due to their collisions with other atoms and molecules which is due to the formation of heterogeneous mixture but other form homogeneous mixture.

A salt solution is mixture of NaCl and water, where Na Cl electrolyte has random movement in the water and forms the heterogeneous mixture. Thus, salt solution shows Brownian motion.