AP EAMCET Engineering 20 Apr 2019 Shift 1 Paper

I. Sulphur is multi-molecular colloid.
II. The diameter of the particle must not be less than the wavelength.
III. Peptisation is the process of forming stable colloid by using an electrolyte to break up a precipitate and dispersed into the colloids.
IV. Eosin and gleatin are negatively charged solution.