1.

    Which of the following pair of gases contain the same number of molecules?

    A

    16gO2,14gN216{\rm{g}}{{\rm{O}}_2},14{\rm{g}}{{\rm{N}}_2}

    B

    8gO2,22gN28{\rm{g}}{{\rm{O}}_2},22{\rm{g}}{{\rm{N}}_2}

    C

    28gN2,22gCO228{\rm{g}}{{\rm{N}}_2},22{\rm{g C}}{{\rm{O}}_2}

    D

    32gO2,32gN232{\rm{g}}{{\rm{O}}_2},32{\rm{g}}{{\rm{N}}_2}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Mole Concept
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :moles, molar mass, Avogadro's number

    Related Questions

    1.

    A mixture of 2.3  g{\rm{2}}{\rm{.3}}\,\,{\rm{g}} formic acid and 4.5  g{\rm{4}}{\rm{.5}}\,\,{\rm{g}} oxalic acid is treated with conc. H2 So4{{\rm{H}}_{{\rm{2}}\,}}{\rm{S}}{{\rm{o}}_{\rm{4}}} . The evolved gaseous mixture is passed through KOH{\rm{KOH}} pellets weight (in g) of the remaining product at STP will be

    A

    1.4 g

    B

    2.8 g

    C

    4.4 g

    D

    3.2 g

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Mole Concept
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Stoichiometry, Chemical Reactions, Molar Mass, Gas Laws, Acid-Base Reaction

    2.

    Which of the following statement is correct

    A

    28 g CO contains 12 g carbon and 16 g oxygen

    B

    One mole of CO reacts completely with half mole of O2{O_2} to form CO2C{O_2}

    C

    N2{N_2} and CO have same molar mass

    D

    All of these

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Mole Concept
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Molar mass, Stoichiometry, Chemical Reactions

    3.

    26 mL26\,{\rm{mL}} of CO2{\rm{C}}{{\rm{O}}_2} are passed over hot coke. The maximum volume of CO formed is :

    A

    15 mL15\,{\rm{mL}}

    B

    10 mL10\,{\rm{mL}}

    C

    32 mL32\,{\rm{mL}}

    D

    52 mL52\,{\rm{mL}}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Mole Concept
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :stoichiometry, gas volumes, chemical reactions

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