Question

another
Which of the following statement(s)
is/are correct for Brownian motion ?
(A)
The motion is continuous
(B)
The motion is independent of
external influences
(C)
The motion is faster for smaller
particles​

Answer 1

Answer:

Smaller the size and lesser the viscosity, the faster is the motion. Brownian movement arises because of the impact of the molecules of the dispersion medium with the colloidal particles.

As the size of the particle increases, the effect of the impacts average out and the Brownian movement becomes slow. Ultimately, when the dispersed particle becomes big enough to acquire the dimensions of suspension, no Brownian movement is observed.

Option A is correct.