320862
Isoelectric point refers to the ion concentration at which the colloidal particles:
1 Coagulate
2 Become electrically neutral
3 Can move to either electrode when subjected to an electric field
4 Reverse their electrical charge
Explanation:
Conceptual Questions
CHXII05:SURFACE CHEMISTRY
320863
A sol of is prepared by mixing equal volumes of and , which of the following statement is correct?
1 Sol obtained is a positive sol with
2 Sol obtained is a positive sol with adsorbed on AgI
3 Sol obtained is a negative sol with absorbed on AgI
4 Sol obtained is a negtive sol with absorbed on AgI
Explanation:
Since is in excess (due to high concentration), therefore sol obtained is a negative sol with absorbed on AgI.
CHXII05:SURFACE CHEMISTRY
320864
Statement A : sol is prepared by adding in excess of solution. The formed sol migrates towards anode under the influence of electric field. Statement B : Colloidal particles adsorb ions and thus becomes electrically charged.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
is a negative sol so moves towards cathode under the influence of electric field. Due to preferential adsorption, colloids become charged. So, option (2) is correct.
320862
Isoelectric point refers to the ion concentration at which the colloidal particles:
1 Coagulate
2 Become electrically neutral
3 Can move to either electrode when subjected to an electric field
4 Reverse their electrical charge
Explanation:
Conceptual Questions
CHXII05:SURFACE CHEMISTRY
320863
A sol of is prepared by mixing equal volumes of and , which of the following statement is correct?
1 Sol obtained is a positive sol with
2 Sol obtained is a positive sol with adsorbed on AgI
3 Sol obtained is a negative sol with absorbed on AgI
4 Sol obtained is a negtive sol with absorbed on AgI
Explanation:
Since is in excess (due to high concentration), therefore sol obtained is a negative sol with absorbed on AgI.
CHXII05:SURFACE CHEMISTRY
320864
Statement A : sol is prepared by adding in excess of solution. The formed sol migrates towards anode under the influence of electric field. Statement B : Colloidal particles adsorb ions and thus becomes electrically charged.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
is a negative sol so moves towards cathode under the influence of electric field. Due to preferential adsorption, colloids become charged. So, option (2) is correct.
320862
Isoelectric point refers to the ion concentration at which the colloidal particles:
1 Coagulate
2 Become electrically neutral
3 Can move to either electrode when subjected to an electric field
4 Reverse their electrical charge
Explanation:
Conceptual Questions
CHXII05:SURFACE CHEMISTRY
320863
A sol of is prepared by mixing equal volumes of and , which of the following statement is correct?
1 Sol obtained is a positive sol with
2 Sol obtained is a positive sol with adsorbed on AgI
3 Sol obtained is a negative sol with absorbed on AgI
4 Sol obtained is a negtive sol with absorbed on AgI
Explanation:
Since is in excess (due to high concentration), therefore sol obtained is a negative sol with absorbed on AgI.
CHXII05:SURFACE CHEMISTRY
320864
Statement A : sol is prepared by adding in excess of solution. The formed sol migrates towards anode under the influence of electric field. Statement B : Colloidal particles adsorb ions and thus becomes electrically charged.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
is a negative sol so moves towards cathode under the influence of electric field. Due to preferential adsorption, colloids become charged. So, option (2) is correct.
320862
Isoelectric point refers to the ion concentration at which the colloidal particles:
1 Coagulate
2 Become electrically neutral
3 Can move to either electrode when subjected to an electric field
4 Reverse their electrical charge
Explanation:
Conceptual Questions
CHXII05:SURFACE CHEMISTRY
320863
A sol of is prepared by mixing equal volumes of and , which of the following statement is correct?
1 Sol obtained is a positive sol with
2 Sol obtained is a positive sol with adsorbed on AgI
3 Sol obtained is a negative sol with absorbed on AgI
4 Sol obtained is a negtive sol with absorbed on AgI
Explanation:
Since is in excess (due to high concentration), therefore sol obtained is a negative sol with absorbed on AgI.
CHXII05:SURFACE CHEMISTRY
320864
Statement A : sol is prepared by adding in excess of solution. The formed sol migrates towards anode under the influence of electric field. Statement B : Colloidal particles adsorb ions and thus becomes electrically charged.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
is a negative sol so moves towards cathode under the influence of electric field. Due to preferential adsorption, colloids become charged. So, option (2) is correct.