Question

Brownian movement is fastest in ______________.

• A. solids
• B. liquids
• C. gases
• D. none of these

Answer 1

The correct option is C

gases

The explanation for the correct option:

Gases:

• Brownian movement or motion, zigzag, irregular motion exhibited by minute particles of matter when suspended in a fluid.
• Particles in both liquids and gases move randomly.
• They are bombarded by the other moving particles in the fluid.

The explanation for the incorrect option:

Solids: In the case of solids, there is no such constant motion of the molecules of the dispersed medium.

Liquids: Molecules in liquids are in a constant state of random motion but slower than in gases.

Hence the correct option is C.