Question

Freshly prepared precipitate sometimes gets converted to colloidal solution by

• A. peptisation
• B. coagulation
• C. electrolysis
• D. diffusion

Answer 1

The correct option is A peptisation

Freshly prepared precipitate sometimes gets converted to colloidal solution by peptisation.

Peptisation is a process in which by addition of a suitable peptising agent, precipitate gets converted into a colloidal solution.

● During coagulation, colloidal particles come together to form large size particles and form precipitate. So, $\left(A\right)$ is wrong.

● Electrolysis brings chemical decomposition by passing electric current through electrolytes. So, $\left(B\right)$ is wrong.

● Diffusion is a method in which liquid or gas particles move from regions of higher concentration to lower concentration. Therefore, $\left(C\right)$ is also wrong.