1.

    Below critical micelle concentration (CMC)

    A

    Salt behaves as normal electrolyte

    B

    Substances like grease, fat dissolve by emulsification

    C

    The viscosity of solution is very high

    D

    Surfactant molecules undergo association to form cluster

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Critical Micelle Concentration, Surfactants, Electrolytes

    Related Questions

    1.

    Which of the following statements is correct for Tyndall effect?

    A

    Scattering and polarizing of light by small suspended particles is called Tyndall effect

    B

    Tyndall effect of colloidal particles is due to dispersion of light

    C

    Tyndall effect is due to refraction of light

    D

    Zig−zagZig - zag motion of suspended particles

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Tyndall effect, scattering, polarization, colloids

    2.

    The arsenioussulphide sol has negative charge. The maximum coagulating power for precipitating it is of :

    A

    0.1  N  Zn(NO3)20.1\;N\;{\rm{Zn}}{\left( {{\rm{N}}{{\rm{O}}_3}} \right)_2}

    B

    0.1  N  Na3PO40.1\;N\;{\rm{N}}{{\rm{a}}_3}{\rm{P}}{{\rm{O}}_4}

    C

    0.1  N  ZnSO40.1\;N\;{\rm{ZnS}}{{\rm{O}}_4}

    D

    0.1  N  AlCl30.1\;N\;{\rm{AlC}}{{\rm{l}}_3}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Colloids, Coagulation, Hardy-Schulze rule

    3.

    Which will not form colloidal solution?

    (Where DP = Dispersion phase and DM = Dispersion medium)

    A

    DP-gas, DM-liq.

    B

    DP-liquid DM-solid

    C

    DP-gas, DM-gas

    D

    DP-solid, DM-solid

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :colloidal solutions, phases of matter, dispersion phase, dispersion medium

    4.

    The movement of colloidal particles under the influence of an electric field is known as:

    A

    Tyndall effect

    B

    Brownian motion

    C

    Electrophoresis

    D

    Dialysis

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Electrophoresis, Colloids, Properties of colloids

    5.

    Whenever, gels are placed with their dispersed phase, they :

    A

    Swells up

    B

    Show intake of the dispersed phase

    C

    Develops imbibition

    D

    All of the above

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :gels, dispersed phase, swelling, imbibition

    6.

    In which of the following, Tyndall effect is not observed?

    A

    Smoke

    B

    Emulsion

    C

    Sugar solution

    D

    Gold sol

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Tyndall effect, colloids, solutions

    7.

    Choose macromolecular colloids among the following

    A

    Soap

    B

    Detergent

    C

    Starch and cellulose

    D

    All of these

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :colloids, macromolecular colloids, classification of colloids

    8.

    Select the correct statements among the following

    a) Foam is a colloidal solution of gas in liquid

    b) Aerosol is a colloidal solution of liquid in gas

    c) Gel is a colloidal solution of solid in liquid

    d) Emulsion is a colloidal solution of liquid in liquid

    A

    a, b, d correct

    B

    a, b, c, d correct

    C

    a, b, c correct

    D

    a, b correct

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Understanding
    🎯Difficulty :Hard
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :colloidal solutions, foam, aerosol, gel, emulsion

    9.

    The capacity of an ion to coagulate a colloidal solution depends on :

    A

    Its shape

    B

    Amount of its charge

    C

    The sign of charge

    D

    Both amount and sign of the charge

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :coagulation, colloids, ion charge, Hardy-Schulze rule

    10.

    Which of the following is not a method of preparation of colloidal solution?

    A

    Electrical dispersion

    B

    Peptization

    C

    Coagulation

    D

    Mechanical dispersion

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :colloidal solutions, preparation methods, coagulation

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