The sky looks blue due to:

The disease kala azar is caused by

$A$ liquid scatters light and leaves no residue when passed through filter paper. This liquid can be described as..........

When freshly prepared $Fe(OH)_3$ precipitate is boiled in water in the presence of a few drops of dilute $HCl$,a colloidal sol of ferric hydroxide is formed. This process is known as .......

Into how many parts are colloidal sols divided according to the nature of interaction between the dispersed phase and the dispersion medium?

When a colloidal solution is observed under an ultramicroscope,we can see ..........