$A$ system of cellulose dispersed in alcohol is known as a ...... .

The polar head part of sodium stearate is ...... .

Critical Micelle Concentration $(CMC)$ for a soap solution is $1.5 \times 10^{-4} \ mol \ L^{-1}$. Micelle formation is possible only when the concentration of soap solution in $mol \ L^{-1}$ is:

What are lyophilic and lyophobic sols? Give one example of each type. Why are hydrophobic sols easily coagulated?

Gold number is a measure of the

Which one of the following statements is not correct?