1.

    The first ionization enthalpy of inert gases is exceptionally high. Which factor contributes LEAST to this high ionization enthalpy?

    A

    Stable completely filled electronic configuration

    B

    High effective nuclear charge

    C

    Small atomic size

    D

    Presence of d-electrons in the valence shell

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Classification Of Elements
    🎯Topic:Inert Gases [Group-18]
    πŸŽ“ Ncert Level:Analyzing
    🎯Difficulty :Hard
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Inert Gases, Ionization Enthalpy, Electronic Configuration

    Related Questions

    1.

    The correct order of increasing oxidising power is

    A

    {{\rm{F}}_2} < C{{\rm{l}}_2} < {\mkern 1mu} \,\,{{\rm{I}}_2}{\rm{ < B}}{{\rm{r}}_2}

    B

    {{\rm{F}}_2} < {\rm{B}}{{\rm{r}}_2} < C{{\rm{l}}_2} < {{\rm{I}}_2}

    C

    {\rm{C}}{{\rm{l}}_2} < {\rm{B}}{{\rm{r}}_2} < {{\rm{F}}_2} < {{\rm{I}}_2}

    D

    {{\rm{I}}_2} < {\rm{B}}{{\rm{r}}_2} < C{{\rm{l}}_2} < {{\rm{F}}_2}

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Classification Of Elements
    🎯Topic:Inert Gases [Group-18]
    πŸŽ“ Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :Oxidizing power, Halogens, Periodic trends

    2.

    Which inert gas is used in helium-neon lasers?

    A

    Helium

    B

    Neon

    C

    Argon

    D

    Krypton

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Classification Of Elements
    🎯Topic:Inert Gases [Group-18]
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚑ Time Required :0.5 mins
    πŸ”„Ncert Concepts :Inert gases, Lasers, Applications

    3.

    Arrange the following inert gases in increasing order of their boiling points: He, Ne, Ar, Kr.

    A

    He < Ne < Ar < Kr

    B

    Kr < Ar < Ne < He

    C

    Ar < Kr < He < Ne

    D

    Ne < He < Kr < Ar

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Classification Of Elements
    🎯Topic:Inert Gases [Group-18]
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Hard
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Inert Gases, Boiling Point, London Dispersion Forces

    4.

    Anionic species obtained on reaction of XeF2Xe{F_2} with XeF2Xe{F_2} is

    A

    XeF3βˆ’

    B

    XeF4

    C

    XeF5βˆ’

    D

    XeF6

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Classification Of Elements
    🎯Topic:Inert Gases [Group-18]
    πŸŽ“ Ncert Level:Analyzing
    🎯Difficulty :Hard
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :Lewis acid-base, Anionic complex formation, Chemical reactions, Xenon fluorides

    5.

    The correct geometry and hybridization for XeF4Xe{F_4} are __

    A

    square planar, sp3d2s{p^3}{d^2}

    B

    Octahydral, sp3d2s{p^3}{d^2}

    C

    trigonal bipyramidal, sp3ds{p^3}d

    D

    planar triangle, sp3d3s{p^3}{d^3}

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Classification Of Elements
    🎯Topic:Inert Gases [Group-18]
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :VSEPR theory, hybridization, molecular geometry

    6.

    Which of the following is NOT a characteristic of inert gases?

    A

    Colorless and odorless

    B

    Exist as monatomic gases

    C

    Form diatomic molecules

    D

    Low boiling points

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Classification Of Elements
    🎯Topic:Inert Gases [Group-18]
    πŸŽ“ Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚑ Time Required :0.5 mins
    πŸ”„Ncert Concepts :Inert gases, Diatomic molecules, Monatomic gases

    7.

    Inert gases are generally:

    A

    Highly reactive

    B

    Moderately reactive

    C

    Unreactive

    D

    Radioactive

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Classification Of Elements
    🎯Topic:Inert Gases [Group-18]
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚑ Time Required :0.5 mins
    πŸ”„Ncert Concepts :Inert gases, Chemical reactivity

    8.

    Despite their general inertness, some noble gases can form compounds. Which noble gas is MOST likely to form a compound?

    A

    Helium

    B

    Neon

    C

    Xenon

    D

    Argon

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Classification Of Elements
    🎯Topic:Inert Gases [Group-18]
    PYQ YEAR: 2021
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :noble gases, reactivity, trends in reactivity, atomic size

    9.

    Which inert gas is most abundant in Earth's atmosphere?

    A

    Helium

    B

    Neon

    C

    Argon

    D

    Krypton

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Classification Of Elements
    🎯Topic:Inert Gases [Group-18]
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚑ Time Required :0.5 mins
    πŸ”„Ncert Concepts :Inert gases, Atmosphere, Abundance

    10.

    Which inert gas is used in cryogenics due to its extremely low boiling point?

    A

    Helium

    B

    Neon

    C

    Argon

    D

    Krypton

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Classification Of Elements
    🎯Topic:Inert Gases [Group-18]
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :0.5 mins
    πŸ”„Ncert Concepts :Inert gases, Cryogenics, Boiling point

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