Which of the following ionic species has the highest precipitating power?

Identify the colloidal molecule containing a hydrophilic head and a hydrophobic tail.

Movement of colloidal particles under the influence of an electrostatic field is called:

Soap removes grease by . . . . . . .

In each of four separate beakers $(I, II, III, IV)$,$X \ mL$ of $y \ M \ Fe_2O_3 \cdot xH_2O$ colloidal solution is present. Equal volume and equal concentration of $KCl, K_4[Fe(CN)_6], K_3PO_4$ and $K_2SO_4$ were added into $I, II, III$ and $IV$ respectively. The efficiency of precipitation in these beakers follows the order:

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