320857
The stability of a lyophobic colloid is due to
1 adsorption of covalent molecules on the colloid
2 the size of the particles
3 the charge on the particles
4 Tyndall effect
Explanation:
Lyophobic colloids are less stable and hence more easily coagulated than lyophilic colloids. Its stability is only due to charge on particles.
CHXII05:SURFACE CHEMISTRY
320858
Methylene blue sol is
1 Negatively charged sol
2 Neutral
3 Positively charged sol
4 Both (1) & (3)
Explanation:
Conceptual Questions
CHXII05:SURFACE CHEMISTRY
320859
The electrical charge on a colloidal particle is indicated by
1 Brownian movement
2 electrophoresis
3 ultra microscope
4 molecular sieves
Explanation:
Conceptual Questions
CHXII05:SURFACE CHEMISTRY
320860
Which mixture of the solutions will lead to the formation of negatively charged colloidal \([A g I] I^{-}\) sol?
1 \(50 \mathrm{~mL}\) of \(1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(1.5 \mathrm{M}\) \(\mathrm{KI}\)
2 \(50 \mathrm{~mL}\) of \(1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(2 \mathrm{M} \mathrm{KI}\)
3 \(50 \mathrm{~mL}\) of \(2 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(1.5 \mathrm{M}\) \(\mathrm{KI}\)
4 \(50 \mathrm{~mL}\) of \(0.1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(0.1 \mathrm{M}\) \(\mathrm{KI}\)
Explanation:
Generally charge present on the colloid is due to adsorption of common ion from dispersion medium. Millimole of \(\mathrm{KI}\) is maximum in option \((2)(50 \times 2=100)\) so act as solvent and anion \(I^{-}\)is adsorbed by the colloid AgI formed \[\mathop {{\rm{AgN}}{{\rm{O}}_{\rm{3}}}}\limits_{{\rm{D}}{\rm{.P}}{\rm{.}}} {\rm{ + }}\mathop {{\rm{KI}}}\limits_{\begin{array}{*{20}{c}} {{\rm{ D}}{\rm{.M}}{\rm{. }}}\\ {{\rm{ excess )}}} \end{array}} \to \mathop {{\rm{AgI}}}\limits_{\begin{array}{*{20}{l}} {{\rm{ Negatively }}}\\ {{\rm{ charged }}}\\ {{\rm{ colloid }}} \end{array}} {\rm{ + KN}}{{\rm{O}}_{\rm{3}}}\]
NEET - 2019
CHXII05:SURFACE CHEMISTRY
320861
Which property of colloidal solution is independent of charge on the colloidal particles:-
1 Electrophoresis
2 Electro-osmosis
3 Tyndall effect
4 Coagulation
Explanation:
Tyndall effect is an optical property and it is independent of charge on colloidal particles.
320857
The stability of a lyophobic colloid is due to
1 adsorption of covalent molecules on the colloid
2 the size of the particles
3 the charge on the particles
4 Tyndall effect
Explanation:
Lyophobic colloids are less stable and hence more easily coagulated than lyophilic colloids. Its stability is only due to charge on particles.
CHXII05:SURFACE CHEMISTRY
320858
Methylene blue sol is
1 Negatively charged sol
2 Neutral
3 Positively charged sol
4 Both (1) & (3)
Explanation:
Conceptual Questions
CHXII05:SURFACE CHEMISTRY
320859
The electrical charge on a colloidal particle is indicated by
1 Brownian movement
2 electrophoresis
3 ultra microscope
4 molecular sieves
Explanation:
Conceptual Questions
CHXII05:SURFACE CHEMISTRY
320860
Which mixture of the solutions will lead to the formation of negatively charged colloidal \([A g I] I^{-}\) sol?
1 \(50 \mathrm{~mL}\) of \(1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(1.5 \mathrm{M}\) \(\mathrm{KI}\)
2 \(50 \mathrm{~mL}\) of \(1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(2 \mathrm{M} \mathrm{KI}\)
3 \(50 \mathrm{~mL}\) of \(2 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(1.5 \mathrm{M}\) \(\mathrm{KI}\)
4 \(50 \mathrm{~mL}\) of \(0.1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(0.1 \mathrm{M}\) \(\mathrm{KI}\)
Explanation:
Generally charge present on the colloid is due to adsorption of common ion from dispersion medium. Millimole of \(\mathrm{KI}\) is maximum in option \((2)(50 \times 2=100)\) so act as solvent and anion \(I^{-}\)is adsorbed by the colloid AgI formed \[\mathop {{\rm{AgN}}{{\rm{O}}_{\rm{3}}}}\limits_{{\rm{D}}{\rm{.P}}{\rm{.}}} {\rm{ + }}\mathop {{\rm{KI}}}\limits_{\begin{array}{*{20}{c}} {{\rm{ D}}{\rm{.M}}{\rm{. }}}\\ {{\rm{ excess )}}} \end{array}} \to \mathop {{\rm{AgI}}}\limits_{\begin{array}{*{20}{l}} {{\rm{ Negatively }}}\\ {{\rm{ charged }}}\\ {{\rm{ colloid }}} \end{array}} {\rm{ + KN}}{{\rm{O}}_{\rm{3}}}\]
NEET - 2019
CHXII05:SURFACE CHEMISTRY
320861
Which property of colloidal solution is independent of charge on the colloidal particles:-
1 Electrophoresis
2 Electro-osmosis
3 Tyndall effect
4 Coagulation
Explanation:
Tyndall effect is an optical property and it is independent of charge on colloidal particles.
320857
The stability of a lyophobic colloid is due to
1 adsorption of covalent molecules on the colloid
2 the size of the particles
3 the charge on the particles
4 Tyndall effect
Explanation:
Lyophobic colloids are less stable and hence more easily coagulated than lyophilic colloids. Its stability is only due to charge on particles.
CHXII05:SURFACE CHEMISTRY
320858
Methylene blue sol is
1 Negatively charged sol
2 Neutral
3 Positively charged sol
4 Both (1) & (3)
Explanation:
Conceptual Questions
CHXII05:SURFACE CHEMISTRY
320859
The electrical charge on a colloidal particle is indicated by
1 Brownian movement
2 electrophoresis
3 ultra microscope
4 molecular sieves
Explanation:
Conceptual Questions
CHXII05:SURFACE CHEMISTRY
320860
Which mixture of the solutions will lead to the formation of negatively charged colloidal \([A g I] I^{-}\) sol?
1 \(50 \mathrm{~mL}\) of \(1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(1.5 \mathrm{M}\) \(\mathrm{KI}\)
2 \(50 \mathrm{~mL}\) of \(1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(2 \mathrm{M} \mathrm{KI}\)
3 \(50 \mathrm{~mL}\) of \(2 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(1.5 \mathrm{M}\) \(\mathrm{KI}\)
4 \(50 \mathrm{~mL}\) of \(0.1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(0.1 \mathrm{M}\) \(\mathrm{KI}\)
Explanation:
Generally charge present on the colloid is due to adsorption of common ion from dispersion medium. Millimole of \(\mathrm{KI}\) is maximum in option \((2)(50 \times 2=100)\) so act as solvent and anion \(I^{-}\)is adsorbed by the colloid AgI formed \[\mathop {{\rm{AgN}}{{\rm{O}}_{\rm{3}}}}\limits_{{\rm{D}}{\rm{.P}}{\rm{.}}} {\rm{ + }}\mathop {{\rm{KI}}}\limits_{\begin{array}{*{20}{c}} {{\rm{ D}}{\rm{.M}}{\rm{. }}}\\ {{\rm{ excess )}}} \end{array}} \to \mathop {{\rm{AgI}}}\limits_{\begin{array}{*{20}{l}} {{\rm{ Negatively }}}\\ {{\rm{ charged }}}\\ {{\rm{ colloid }}} \end{array}} {\rm{ + KN}}{{\rm{O}}_{\rm{3}}}\]
NEET - 2019
CHXII05:SURFACE CHEMISTRY
320861
Which property of colloidal solution is independent of charge on the colloidal particles:-
1 Electrophoresis
2 Electro-osmosis
3 Tyndall effect
4 Coagulation
Explanation:
Tyndall effect is an optical property and it is independent of charge on colloidal particles.
320857
The stability of a lyophobic colloid is due to
1 adsorption of covalent molecules on the colloid
2 the size of the particles
3 the charge on the particles
4 Tyndall effect
Explanation:
Lyophobic colloids are less stable and hence more easily coagulated than lyophilic colloids. Its stability is only due to charge on particles.
CHXII05:SURFACE CHEMISTRY
320858
Methylene blue sol is
1 Negatively charged sol
2 Neutral
3 Positively charged sol
4 Both (1) & (3)
Explanation:
Conceptual Questions
CHXII05:SURFACE CHEMISTRY
320859
The electrical charge on a colloidal particle is indicated by
1 Brownian movement
2 electrophoresis
3 ultra microscope
4 molecular sieves
Explanation:
Conceptual Questions
CHXII05:SURFACE CHEMISTRY
320860
Which mixture of the solutions will lead to the formation of negatively charged colloidal \([A g I] I^{-}\) sol?
1 \(50 \mathrm{~mL}\) of \(1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(1.5 \mathrm{M}\) \(\mathrm{KI}\)
2 \(50 \mathrm{~mL}\) of \(1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(2 \mathrm{M} \mathrm{KI}\)
3 \(50 \mathrm{~mL}\) of \(2 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(1.5 \mathrm{M}\) \(\mathrm{KI}\)
4 \(50 \mathrm{~mL}\) of \(0.1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(0.1 \mathrm{M}\) \(\mathrm{KI}\)
Explanation:
Generally charge present on the colloid is due to adsorption of common ion from dispersion medium. Millimole of \(\mathrm{KI}\) is maximum in option \((2)(50 \times 2=100)\) so act as solvent and anion \(I^{-}\)is adsorbed by the colloid AgI formed \[\mathop {{\rm{AgN}}{{\rm{O}}_{\rm{3}}}}\limits_{{\rm{D}}{\rm{.P}}{\rm{.}}} {\rm{ + }}\mathop {{\rm{KI}}}\limits_{\begin{array}{*{20}{c}} {{\rm{ D}}{\rm{.M}}{\rm{. }}}\\ {{\rm{ excess )}}} \end{array}} \to \mathop {{\rm{AgI}}}\limits_{\begin{array}{*{20}{l}} {{\rm{ Negatively }}}\\ {{\rm{ charged }}}\\ {{\rm{ colloid }}} \end{array}} {\rm{ + KN}}{{\rm{O}}_{\rm{3}}}\]
NEET - 2019
CHXII05:SURFACE CHEMISTRY
320861
Which property of colloidal solution is independent of charge on the colloidal particles:-
1 Electrophoresis
2 Electro-osmosis
3 Tyndall effect
4 Coagulation
Explanation:
Tyndall effect is an optical property and it is independent of charge on colloidal particles.
320857
The stability of a lyophobic colloid is due to
1 adsorption of covalent molecules on the colloid
2 the size of the particles
3 the charge on the particles
4 Tyndall effect
Explanation:
Lyophobic colloids are less stable and hence more easily coagulated than lyophilic colloids. Its stability is only due to charge on particles.
CHXII05:SURFACE CHEMISTRY
320858
Methylene blue sol is
1 Negatively charged sol
2 Neutral
3 Positively charged sol
4 Both (1) & (3)
Explanation:
Conceptual Questions
CHXII05:SURFACE CHEMISTRY
320859
The electrical charge on a colloidal particle is indicated by
1 Brownian movement
2 electrophoresis
3 ultra microscope
4 molecular sieves
Explanation:
Conceptual Questions
CHXII05:SURFACE CHEMISTRY
320860
Which mixture of the solutions will lead to the formation of negatively charged colloidal \([A g I] I^{-}\) sol?
1 \(50 \mathrm{~mL}\) of \(1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(1.5 \mathrm{M}\) \(\mathrm{KI}\)
2 \(50 \mathrm{~mL}\) of \(1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(2 \mathrm{M} \mathrm{KI}\)
3 \(50 \mathrm{~mL}\) of \(2 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(1.5 \mathrm{M}\) \(\mathrm{KI}\)
4 \(50 \mathrm{~mL}\) of \(0.1 \mathrm{M} \mathrm{AgNO}_{3}+50 \mathrm{~mL}\) of \(0.1 \mathrm{M}\) \(\mathrm{KI}\)
Explanation:
Generally charge present on the colloid is due to adsorption of common ion from dispersion medium. Millimole of \(\mathrm{KI}\) is maximum in option \((2)(50 \times 2=100)\) so act as solvent and anion \(I^{-}\)is adsorbed by the colloid AgI formed \[\mathop {{\rm{AgN}}{{\rm{O}}_{\rm{3}}}}\limits_{{\rm{D}}{\rm{.P}}{\rm{.}}} {\rm{ + }}\mathop {{\rm{KI}}}\limits_{\begin{array}{*{20}{c}} {{\rm{ D}}{\rm{.M}}{\rm{. }}}\\ {{\rm{ excess )}}} \end{array}} \to \mathop {{\rm{AgI}}}\limits_{\begin{array}{*{20}{l}} {{\rm{ Negatively }}}\\ {{\rm{ charged }}}\\ {{\rm{ colloid }}} \end{array}} {\rm{ + KN}}{{\rm{O}}_{\rm{3}}}\]
NEET - 2019
CHXII05:SURFACE CHEMISTRY
320861
Which property of colloidal solution is independent of charge on the colloidal particles:-
1 Electrophoresis
2 Electro-osmosis
3 Tyndall effect
4 Coagulation
Explanation:
Tyndall effect is an optical property and it is independent of charge on colloidal particles.
