1.

    Which of the following is not the property of hydrophilic sol.?

    A

    High stability

    B

    Reversibility

    C

    Easily precipitated by electrolytes

    D

    Hydration

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Hydrophilic sols, Colloid properties, Viscosity, Surface tension, Coagulation, pH dependence

    Related Questions

    1.

    Whipped cream is an example of :

    Dispersed phase Dispersion medium

    A

    Liquid gas

    B

    Gas liquid

    C

    Liquid liquid

    D

    Solid liquid

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

    2.

    Solid aerosol is an example of colloidal system of :

    A

    Liquid dispersed in gas

    B

    Gas dispersed in gas

    C

    Solid dispersed in gas

    D

    Solid dispersed in liquid

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Colloidal systems, Dispersed phase, Dispersion medium, Aerosols

    3.

    The coagulation values in millimoles per litre of the electrolytes used for the coagulation of As2S3{\rm{A}}{{\rm{s}}_{\rm{2}}}{{\rm{S}}_{\rm{3}}} are given belowI) (NaCl) = 5.2{\rm{(}}NaCl{\rm{)}}\,{\rm{ = }}\,{\rm{5.2}} II) (BaCl2) = 0.69{\rm{(}}BaC{l_2}{\rm{)}}\,{\rm{ = }}\,0.69 III) (MgSO4) = 0.22{\rm{(}}MgS{O_4}{\rm{)}}\,{\rm{ = }}\,0.22 The correct order of their coagulating power is

    A

    III > I > II

    B

    I > II > III

    C

    II > I > III

    D

    III > II > I

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

    4.

    A colloidal solution of gold nanoparticles exhibits a ruby red color. This phenomenon is primarily attributed to:

    A

    Absorption of light in the red region of the spectrum by gold nanoparticles

    B

    Fluorescence of gold nanoparticles upon excitation with white light

    C

    Scattering of light by the gold nanoparticles (Tyndall effect)

    D

    Refraction of light by the dispersion medium

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Understanding
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Colloids, Tyndall Effect, Light Scattering

    5.

    Tyndall effect would be observed in

    A

    Solvent

    B

    Solution

    C

    Colloidal solution

    D

    Precipitate

    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, Suspensions

    6.

    Which of the following is not the property of hydrophilic sol.?

    A

    High stability

    B

    Reversibility

    C

    Easily precipitated by electrolytes

    D

    Hydration

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Hydrophilic sols, Colloid properties, Viscosity, Surface tension, Coagulation, pH dependence

    7.

    Which is not shown by sols?

    A

    Adsorption

    B

    Tyndall effect

    C

    Flocculation

    D

    Paramagnetism

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Sols, Adsorption, Tyndall effect, Flocculation, Paramagnetism

    8.

    Brownian motion of sol particle is the …..property of sol :

    A

    Electrical

    B

    Optical

    C

    Kinetic

    D

    Colligative

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Brownian motion, properties of colloids, kinetic energy

    9.

    Isoelectric point is the pH at which colloidal particles

    A

    Become electrically charged

    B

    Can move towards respective electrodes

    C

    Coagulate

    D

    None of the above

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Isoelectric point, Colloidal particles, Coagulation

    10.

    The temperature above which micelle formation occurs is :

    A

    Critical temperature

    B

    Charles’ temperature

    C

    Inversion temperature

    D

    Kraft’s temperature

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Micelle formation, Kraft temperature

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