5.23 Explain what is observed (i) When a beam of light is passed through a colloidal sol. (ii) An electrolyte, NaCl is added to hydrated ferric oxide sol. electric current is passed through a colloidal sol?
5.23 Explain what is observed (i) When a beam of light is passed through a colloidal sol. (ii) An electrolyte, NaCl is added to hydrated ferric oxide sol. electric current is passed through a colloidal sol?
-
1 Answer
-
5.23
(i) In this case Tyndall effect is observed i.e. scattering of light by the colloidal particles takes place and the path of light become visible.
(ii) The coagulation takes place in this case positive charge particles of Fe (OH)2 gets attached with Cl-. And of FeCl3 is obtained.
(iii) In this case coagulation will take place. After passing electric current through colloidal solution particle will get attracted towards oppositely charged and lose their charge and coagulate.
Similar Questions for you
The process of settling of colloidal particles is
In physisorption multimolecular layers are formed on solid surface.
Emulsion is a colloidal solution of liquid in liquid.
Haemoglobin is a positive colloid. Hence greater is the charge of anion, more effective will be the coagulation of haemoglobin.
Therefore,
Correct order of coagulating power is
Taking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else
Sign Up on ShikshaOn Shiksha, get access to
- 65k Colleges
- 1.2k Exams
- 679k Reviews
- 1800k Answers