1.

    What is the size range of colloidal particles?

    A

    Less than 1 nm

    B

    1 nm to 1000 nm

    C

    Greater than 1000 nm

    D

    100 nm to 10000 nm

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Colloids, Particle size

    Related Questions

    1.

    Which of the following forms cationic micelles above certain concentration?

    A

    Sodium dodecyl sulfate (SDS)

    B

    Dodecyl alcohol

    C

    Cetyltrimethylammonium bromide (CTAB)

    D

    Sugar

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :micelles, surfactants, critical micelle concentration, cationic surfactants

    2.

    Milk contains a protein that is very good for health. The protein is :

    A

    Caffeine

    B

    Calciferol

    C

    Keratin

    D

    Casein

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Proteins, Nutrition, Dairy Products

    3.

    Which is not a macromolecule?

    A

    Carbohydrate

    B

    Lipid

    C

    Protein

    D

    Salt

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :macromolecule, lipids, carbohydrates, nucleic acids, proteins

    4.

    If liquid is dispersed in solid medium, this is called

    A

    Sol

    B

    Emulsion

    C

    Liquid aerosol

    D

    gel

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

    5.

    Bredig arc method cannot be used to prepare colloidal solution of :

    A

    Pt

    B

    Fe

    C

    Ag

    D

    Au

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Colloidal solutions, Bredig arc method, Metal reactivity

    6.

    The average size of the colloids is of the order :

    A

    10−12  m  to  10−19  m{10^{ - 12}}\;{\rm{m }}\;{\rm{to}}\;{10^{ - 19}}\;{\rm{m}}

    B

    10−7  m  to  10−9  m{10^{ - 7}}\;{\rm{m}}\;{\rm{ to}}\;{10^{ - 9}}\;{\rm{m}}

    C

    10−9 m  to  10−12  m{10^{ - 9}}\,{\rm{m }}\;{\rm{to}}\;{10^{ - 12}}\;{\rm{m}}

    D

    10−6 m  to  10−9  m{10^{ - 6}}\,{\rm{m }}\;{\rm{to}}\;{10^{ - 9}}\;{\rm{m}}

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

    7.

    In aerosol, the dispersion medium is

    A

    Solid

    B

    Liquid

    C

    Gas

    D

    Any of these

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Aerosols, Dispersion Medium, States of Matter

    8.

    An example of micelle is

    A

    AS2O3A{S_2}{O_3} sol

    B

    Ruby glass

    C

    Na2CO3N{a_2}C{O_3} solution

    D

    Sodium stearate concentrated solution

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Micelles, Colloids, Solutions

    9.

    Surface tension of lyophilic sols is :

    A

    Lower than H2O{{\rm{H}}_2}{\rm{O}}

    B

    More than H2O{{\rm{H}}_2}{\rm{O}}

    C

    Equal to H2O{{\rm{H}}_2}{\rm{O}}

    D

    None of these

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Surface Chemistry
    🎯Topic:Colloidal State
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :surface tension, lyophilic sols, intermolecular forces

    10.

    Which of the following is the most effective in the coagulation of gold sol?

    A

    NaNO3{\rm{NaN}}{{\rm{O}}_3}

    B

    MgCl2{\rm{MgC}}{{\rm{l}}_2}

    C

    Na3PO4{\rm{N}}{{\rm{a}}_3}{\rm{P}}{{\rm{O}}_4}

    D

    K4[Fe(CN)6]{{\rm{K}}_4}\left[ {{\rm{Fe}}{{\left( {{\rm{CN}}} \right)}_6}} \right]

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

    company logo

    NEET Subjects

    Our Bots

    Company