Which one is an anionic surface active agent at a concentration greater than the critical micelle concentration?

Give information about the applications of colloids.

The conditions given below are in the context of observing Tyndall effect in colloidal solutions:
$A$. The diameter of the colloidal particles is comparable to the wavelength of light used.
$B$. The diameter of the colloidal particles is much smaller than the wavelength of light used.
$C$. The diameter of the colloidal particles is much larger than the wavelength of light used.
$D$. The refractive indices of the dispersed phase and the dispersion medium are comparable.
$E$. The dispersed phase has a very different refractive index from the dispersion medium.
Choose the most appropriate conditions from the options given below:

Colloidal particles cannot be classified on the basis of which of the following?

In which of the following colloidal solutions is the dispersed phase liquid while the dispersion medium is gas?

Among the following,the false statement is