Q. The presence of colloidal particles can be confirmed with the help of:

2091 280 J & K CETJ & K CET 2001 Report Error

A

naked eye

B

ordinary microscope

C

ultra-microscope

D

none of the above

Solution:

The size of the colloidal particles ( $1 nm$ to $100 nm$ ) is smaller than suspension but larger than true solution. Colloidal particles can be seen under an ultra-microscope.