हिंदी

Explain Electrophoresis diagramatically.

Advertisements
Advertisements

प्रश्न

Explain Electrophoresis diagramatically.

टिप्पणी लिखिए
Advertisements

उत्तर

Electrophoresis set up is shown in the diagram below:

  1. The diagram shows a U tube set up in which two platinum electrodes are dipped in a colloidal solution.
  2. When an electric potential is applied across two electrodes, colloidal particles move towards one or other electrode.
  3. The movement of colloidal particles under an applied electric potential is called electrophoresis.
  4. Positively charged particles move towards the cathode while negatively charged particles migrate towards the anode and get deposited on the respective electrode.
shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 11: Adsorption and Colloids - Exercises [पृष्ठ १७३]

APPEARS IN

बालभारती Chemistry [English] Standard 11 Maharashtra State Board
अध्याय 11 Adsorption and Colloids
Exercises | Q 3. (H) | पृष्ठ १७३

संबंधित प्रश्न

Comment on the statement that “colloid is not a substance but a state of substance”.


Write one difference in Multimolecular colloid and Associated colloid

 


 Define the following with a suitable example, of each: 
 Gel


Explain Bredig’s arc method.


Draw labelled diagram Tyndall effect.


Draw labelled diagram of Bredig’s arc method.


Draw labelled diagram of Soap micelle.


Which type of colloid is formed on the dissolution of soap in water?


Which of the following is a heterogeneous mixture?


The precipitation power of an electrolyte increases with ______.


The order of coagulating power of following ions in the coagulation of a positive sol is:

i. \[\ce{PO^{3-}_4}\]

ii. \[\ce{SO^{2-}_4}\]

iii. \[\ce{[Fe(CN)6]^{4-}}\]

iv. \[\ce{NO^-_3}\]


Which of the following is NOT true for lyophilic colloids?


Smoke is an example of ____________.


Which of the following is multimqlecular colloid?


Pumice stone is an example of ______.


Gelatin which is a peptide is added in icecreams. What can be its role?


What happens when electric field is applied to colloidal solution?


A colloid is formed by adding \[\ce{FeCl3}\] in excess of hot water. What will happen if excess sodium chloride is added to this colloid?


Why is \[\ce{Fe(OH)3}\] colloid positively charged, when prepared by adding \[\ce{FeCl3}\] to hot water?


Match the items of Column I and Column II.

Column I Column II
(i) Butter (a) dispersion of liquid in liquid
(ii) Pumice stone (b) dispersion of solid in liquid
(iii) Milk (c) dispersion of gas in solid
(iv) Paints (d) dispersion of liquid in solid

Colloids can


Toluene is oxidised to benzoic acid by


Cloud is an example of


Which of the following substances will precipitate the negatively charge emulsion


Which of the following is most powerful to coagulate the negative colloid?


Van Arkel's method of purification of metals involves converting the metal to a ______.


Identify the correct decreasing order of precipitation power of flocculating ion added, from following.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×