Brownian motion shown by colloidal particle is its ________ property

Options

A. Optical
B. Electrical
C. Kinetic
D. Chemical

Answer

To solve the question "Brownian motion shown by colloidal particle is its ________ property", we can follow these steps:

### Step 1: Understand Brownian Motion
Brownian motion refers to the erratic and random movement of microscopic particles suspended in a fluid (liquid or gas). This phenomenon is primarily observed in colloidal particles.

**Hint:** Think about what causes the motion of the particles in a colloid.

### Step 2: Identify the Cause of Brownian Motion
The movement of colloidal particles is caused by the continuous bombardment of these particles by the molecules of the dispersion medium. This results in collisions between the colloidal particles and the molecules of the medium.

**Hint:** Consider the nature of the interactions between the particles and the medium.

### Step 3: Classify the Property
Since Brownian motion is a result of the collisions and random movements of particles, it can be classified as a kinetic property. Kinetic properties are related to the motion and energy of particles.

**Hint:** Recall the definitions of optical, electrical, kinetic, and chemical properties to determine which category Brownian motion fits into.

### Step 4: Conclusion
Based on the understanding that Brownian motion is due to the kinetic interactions of particles, we conclude that the correct answer to the question is that Brownian motion shown by colloidal particles is its **kinetic property**.

**Final Answer:** Kinetic property