1.

    Which of the following is NOT a characteristic of a good detergent?

    A

    High critical micelle concentration (CMC)

    B

    Ability to lower surface tension

    C

    Biodegradability

    D

    Compatibility with hard water

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Emulisions, Soaps & Detergents
    🎓 Ncert Level:Understanding
    🎯Difficulty :Hard
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :Detergents, Micelles, CMC

    Related Questions

    1.

    Which of the following is not an emulsion?

    A

    Butter

    B

    Ice cream

    C

    Milk

    D

    Clouds

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Emulisions, Soaps & Detergents
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    âš¡ Time Required :2 mins
    🔄Ncert Concepts :Emulsion, Mixtures, States of Matter

    2.

    Cow milk, an example of natural emulsion is stabilised by

    A

    Fat

    B

    Water

    C

    Casein

    D

    Mg2+  ions{\rm{M}}{{\rm{g}}^{2 + }}\;{\rm{ions}}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Emulisions, Soaps & Detergents
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :Emulsions, Stabilizers, Proteins

    3.

    A mixture of two immiscible liquids A and B forms an emulsion. The interfacial tension between A and B is γ\gamma. A surfactant is added to stabilize the emulsion. Which of the following statements is TRUE regarding the effect of the surfactant on γ\gamma and the stability of the emulsion?

    A

    The surfactant decreases γ\gamma, increasing the emulsion's stability.

    B

    The surfactant increases γ\gamma, increasing the emulsion's stability.

    C

    The surfactant decreases γ\gamma, decreasing the emulsion's stability.

    D

    The surfactant increases γ\gamma, decreasing the emulsion's stability.

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Emulisions, Soaps & Detergents
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    âš¡ Time Required :1.5 mins
    🔄Ncert Concepts :Emulsions, Surface Tension, Surfactants

    4.

    From the following which is not an emulsifier?

    A

    Agar

    B

    Milk

    C

    Gum

    D

    Soap

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Emulisions, Soaps & Detergents
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :Emulsifiers

    5.

    From the following which is not an emulsifier?

    A

    Lecithin

    B

    Polysaccharides

    C

    Proteins

    D

    Tweens

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Emulisions, Soaps & Detergents
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :Emulsifiers

    6.

    Which of the following is not an emulsion?

    A

    Butter

    B

    Ice cream

    C

    Milk

    D

    Clouds

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Emulisions, Soaps & Detergents
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    âš¡ Time Required :2 mins
    🔄Ncert Concepts :emulsion, mixtures, states of matter

    7.

    In whipped cream, the dispersed phase and dispersion medium respectively are

    A

    Liquid and liquid

    B

    Gas and liquid

    C

    Liquid and gas

    D

    Liquid and solid

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Emulisions, Soaps & Detergents
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    âš¡ Time Required :2 mins
    🔄Ncert Concepts :dispersed phase, dispersion medium, colloids, states of matter

    8.

    Cod liver oil is

    A

    An emulsion

    B

    Solution

    C

    Colloidal solution

    D

    Suspension

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Emulisions, Soaps & Detergents
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :Mixtures, Emulsions, Solutions, Colloids, Suspensions

    9.

    For the coagulation of methylene blue sol, the flocculating power of which of the following ion is maximum ?

    A

    PO43−PO_4^{3 - }

    B

    Al3+A{l^{3 + }}

    C

    Cl−C{l^ - }

    D

    Ba2+B{a^{2 + }}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Emulisions, Soaps & Detergents
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    âš¡ Time Required :2 mins
    🔄Ncert Concepts :coagulation, flocculating power, Hardy-Schulze rule, charge of ions

    10.

    Cod liver oil is :

    A

    Fat dispersed in water

    B

    Water dispersed in fat

    C

    Water dispersed in oil

    D

    Fat dispersed in fat

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Emulisions, Soaps & Detergents
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    âš¡ Time Required :1 mins
    🔄Ncert Concepts :Mixtures, Emulsions, Dispersed Phase, Continuous Phase

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