Question

Oils and fats are obtained by saponification of potassium stearate. Its formula is

$\mathrm { CH } _ { 3 } - \left( \mathrm { CH } _ { 2 } \right) _ { 16 } - \mathrm { COO } ^ { - } \mathrm { K } ^ { + }$ . Lyophobic end of atom is $\left( \mathrm { CH } _ { 3 } \right)$ and lyophilic end is . potassium stearate is example of .

• A. Lyophobic colloids
• B. Lyophilic colloids
• C. Poly molecular colloids
• D. Macromolecular colloids (5) Combined colloids or Miscells

Answer 1

(5)

Sol. The substance, whose molecules associate with given solvent to form colloidal particle known as association colloidal. The molecule of soap & detergent are generally smaller than colloidal particle. These molecules associate in concentration solution to form colloidal size particle. These association of soap & detergent known as miscelle.