Properties of Colloids
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CHXII05:SURFACE CHEMISTRY

320862 Isoelectric point refers to the \(\mathrm{H}^{+}\)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
CHXII05:SURFACE CHEMISTRY

320863 A sol of \(\mathrm{AgI}\) is prepared by mixing equal volumes of \({\rm{0}}{\rm{.1M}}\,\,{\rm{AgN}}{{\rm{O}}_{\rm{3}}}\) and \({\rm{0}}{\rm{.2M}}\,\,{\rm{KI}}\), which of the following statement is correct?

1 Sol obtained is a positive sol with \(\mathrm{Ag}^{+}\)
2 Sol obtained is a positive sol with \(\mathrm{K}^{+}\) adsorbed on AgI
3 Sol obtained is a negative sol with \({{\rm{I}}^{\rm{ - }}}\) absorbed on AgI
4 Sol obtained is a negtive sol with \(\mathrm{NO}_{3}^{-}\) absorbed on AgI
CHXII05:SURFACE CHEMISTRY

320864 Statement A :
\({\rm{AgI}}\) sol is prepared by adding \(\mathrm{AgNO}_{3}\) in excess of \({\rm{KI}}\) 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.
CHXII05:SURFACE CHEMISTRY

320865 \(A s_{2} O_{3}\) sol is a

1 positive colloid
2 negative colloid
3 neutral colloid
4 none of the above
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CHXII05:SURFACE CHEMISTRY

320862 Isoelectric point refers to the \(\mathrm{H}^{+}\)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
CHXII05:SURFACE CHEMISTRY

320863 A sol of \(\mathrm{AgI}\) is prepared by mixing equal volumes of \({\rm{0}}{\rm{.1M}}\,\,{\rm{AgN}}{{\rm{O}}_{\rm{3}}}\) and \({\rm{0}}{\rm{.2M}}\,\,{\rm{KI}}\), which of the following statement is correct?

1 Sol obtained is a positive sol with \(\mathrm{Ag}^{+}\)
2 Sol obtained is a positive sol with \(\mathrm{K}^{+}\) adsorbed on AgI
3 Sol obtained is a negative sol with \({{\rm{I}}^{\rm{ - }}}\) absorbed on AgI
4 Sol obtained is a negtive sol with \(\mathrm{NO}_{3}^{-}\) absorbed on AgI
CHXII05:SURFACE CHEMISTRY

320864 Statement A :
\({\rm{AgI}}\) sol is prepared by adding \(\mathrm{AgNO}_{3}\) in excess of \({\rm{KI}}\) 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.
CHXII05:SURFACE CHEMISTRY

320865 \(A s_{2} O_{3}\) sol is a

1 positive colloid
2 negative colloid
3 neutral colloid
4 none of the above
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CHXII05:SURFACE CHEMISTRY

320862 Isoelectric point refers to the \(\mathrm{H}^{+}\)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
CHXII05:SURFACE CHEMISTRY

320863 A sol of \(\mathrm{AgI}\) is prepared by mixing equal volumes of \({\rm{0}}{\rm{.1M}}\,\,{\rm{AgN}}{{\rm{O}}_{\rm{3}}}\) and \({\rm{0}}{\rm{.2M}}\,\,{\rm{KI}}\), which of the following statement is correct?

1 Sol obtained is a positive sol with \(\mathrm{Ag}^{+}\)
2 Sol obtained is a positive sol with \(\mathrm{K}^{+}\) adsorbed on AgI
3 Sol obtained is a negative sol with \({{\rm{I}}^{\rm{ - }}}\) absorbed on AgI
4 Sol obtained is a negtive sol with \(\mathrm{NO}_{3}^{-}\) absorbed on AgI
CHXII05:SURFACE CHEMISTRY

320864 Statement A :
\({\rm{AgI}}\) sol is prepared by adding \(\mathrm{AgNO}_{3}\) in excess of \({\rm{KI}}\) 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.
CHXII05:SURFACE CHEMISTRY

320865 \(A s_{2} O_{3}\) sol is a

1 positive colloid
2 negative colloid
3 neutral colloid
4 none of the above
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CHXII05:SURFACE CHEMISTRY

320862 Isoelectric point refers to the \(\mathrm{H}^{+}\)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
CHXII05:SURFACE CHEMISTRY

320863 A sol of \(\mathrm{AgI}\) is prepared by mixing equal volumes of \({\rm{0}}{\rm{.1M}}\,\,{\rm{AgN}}{{\rm{O}}_{\rm{3}}}\) and \({\rm{0}}{\rm{.2M}}\,\,{\rm{KI}}\), which of the following statement is correct?

1 Sol obtained is a positive sol with \(\mathrm{Ag}^{+}\)
2 Sol obtained is a positive sol with \(\mathrm{K}^{+}\) adsorbed on AgI
3 Sol obtained is a negative sol with \({{\rm{I}}^{\rm{ - }}}\) absorbed on AgI
4 Sol obtained is a negtive sol with \(\mathrm{NO}_{3}^{-}\) absorbed on AgI
CHXII05:SURFACE CHEMISTRY

320864 Statement A :
\({\rm{AgI}}\) sol is prepared by adding \(\mathrm{AgNO}_{3}\) in excess of \({\rm{KI}}\) 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.
CHXII05:SURFACE CHEMISTRY

320865 \(A s_{2} O_{3}\) sol is a

1 positive colloid
2 negative colloid
3 neutral colloid
4 none of the above
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