Potassium stearate is obtained by saponification of an oil or fat. It has the formula CH3 - (CH2)6 - COO-K+ . The molecule has a lyophobic end (CH3) and a lyophilic end (COO-K+). Potassium stearate is an example of
a. lyophilic colloid
b. multimolecular colloid
c. macromolecular colloid
d. associated colloid or micelle
