1.

    Equal masses of oxygen and ozone are present in a container at 298 K. The ratio of their partial pressures (PO2:PO3P_{O_2} : P_{O_3}) is:

    A

    1:1

    B

    2:3

    C

    3:2

    D

    4:3

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Mole Concept
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Mole Concept, Partial Pressures, Dalton's Law

    Related Questions

    1.

    Which of the following has the maximum number of electrons

    A

    O⁻²

    B

    Na⁺

    C

    F⁻

    D

    All the given species have same number of electrons

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Mole Concept
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :moles, molar mass, number of electrons, ions

    2.

    The total number of electrons in 18 ml of water (density = 1/gml

    A

    6.023  imes  10256.023\,\, imes \,\,{10^{^{25}}}

    B

    6.023  imes  10246.023\,\, imes \,\,{10^{^{24}}}

    C

    6.023  imes 18  imes  10236.023\,\, imes \,18\,\, imes \,\,{10^{^{23}}}

    D

    6.023  imes  10236.023\,\, imes \,\,{10^{^{23}}}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Mole Concept
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :moles, molar mass, Avogadro's number, number of electrons per molecule

    3.

    Oxygen and the oxide ion have the

    A

    Same proton number

    B

    Same electronic configuration

    C

    Same electron number

    D

    Same size

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Mole Concept
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :atomic structure, ions, protons, electrons

    4.

    Oxygen and the oxide ion have the

    A

    Same proton number

    B

    Same electronic configuration

    C

    Same electron number

    D

    Same size

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Mole Concept
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :atomic structure, ions, protons, electrons

    5.

    The isoelectronic species among the following are:I)CH3+;II)NH2+;III)NH4+;IV)NH3I){\rm{CH}}_3^ + ;{\rm{II)NH}}_2^ + ;{\rm{III)NH}}_4^ + ;{\rm{IV)N}}{{\rm{H}}_3}

    A

    I,II,IIII,{\rm{ }}II,{\rm{ }}III

    B

    II,III,IVII,{\rm{ }}III,{\rm{ }}IV

    C

    I,II,IVI,{\rm{ }}II,{\rm{ }}IV

    D

    II,III,{\rm{ }}I

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Mole Concept
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :isoelectronic species, counting electrons, atomic number

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