1.

    Which of the following is NOT a characteristic of N2O5N_2O_5?

    A

    It is an acidic oxide.

    B

    It exists as a brown gas at room temperature.

    C

    It forms HNO3HNO_3 when dissolved in water.

    D

    In solid state, it exists as NO2+NO3−NO_2^+NO_3^-.

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Classification Of Elements
    🎯Topic:Nitrogen Family [Group-15]
    🎓 Ncert Level:Remembering
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :p-block elements, nitrogen oxides, chemical properties

    Related Questions

    1.

    Considering elements in the third period, which forms the largest ion to achieve a stable octet?

    A

    Na

    B

    Mg

    C

    Al

    D

    S

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Classification Of Elements
    🎯Topic:Nitrogen Family [Group-15]
    PYQ YEAR: 2023
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Periodic Trends, Ionic Radius, Noble Gas Configuration

    2.

    Urea reacts with water to form A{\rm{A}} which will decompose to form B{\rm{B}}. B{\rm{B}} when passed through Cu2+ (aq){\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}\,{\rm{(aq)}}, deep blue colour solution C{\rm{C}} is formed. What is the formula of C{\rm{C}} from the following ?

    A

    Cu SO4{\rm{Cu}}\,{\rm{S}}{{\rm{O}}_4}

    B

    [Cu (NH3)4]2+{{\rm{[Cu}}\,{{\rm{(N}}{{\rm{H}}_3})_4}]^{2 + }}

    C

    Cu (OH)2{\rm{Cu}}\,{{\rm{(OH)}}_2}

    D

    Cu CO3. Cu (OH)2{\rm{Cu}}\,{\rm{C}}{{\rm{O}}_3}.\,{\rm{Cu}}\,{{\rm{(OH)}}_{\rm{2}}}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Classification Of Elements
    🎯Topic:Nitrogen Family [Group-15]
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Reaction of urea with water, Decomposition of ammonium carbonate, Complex formation with copper(II) ions, Coordination chemistry

    3.

    Strongest reducing agent among the following is

    A

    NH3N{H_3}

    B

    BiH3Bi{H_3}

    C

    AsH3As{H_3}

    D

    PH3P{H_3}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Classification Of Elements
    🎯Topic:Nitrogen Family [Group-15]
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :reducing agent, electronegativity, bond strength, periodic trends

    4.

    What is the oxidation state of nitrogen in each of the following compounds, arranged in descending order?  N2O, NO2, N2O3, N2O5\ N_2O, \ NO_2, \ N_2O_3, \ N_2O_5

    A

    N2O5, NO2, N2O3, N2O

    B

    N2O, N2O3, NO2, N2O5

    C

    NO2, N2O5, N2O3, N2O

    D

    N2O5, N2O3, NO2, N2O

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Classification Of Elements
    🎯Topic:Nitrogen Family [Group-15]
    PYQ YEAR: 2018
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Oxidation State, Nitrogen Oxides

    5.

    The anhydride of HNO3{\rm{HN}}{{\rm{O}}_3} is:

    A

    P2O5{{\rm{P}}_2}{{\rm{O}}_5}

    B

    N2O3{{\rm{N}}_2}{{\rm{O}}_3}

    C

    NO{\rm{NO}}

    D

    N2O5{{\rm{N}}_2}{{\rm{O}}_5}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Classification Of Elements
    🎯Topic:Nitrogen Family [Group-15]
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Anhydride, Chemical Formula, Nitric Acid

    6.

    Urea reacts with water to form X which decomposes to form Y. When Y is passed through Cu2+(aq)Cu^{2+}(aq), a deep blue colour solution Z is formed. What is the formula of Z?

    A

    [Cu(NH3)4]2+[Cu(NH_3)_4]^{2+}

    B

    [Cu(H2O)4]2+[Cu(H_2O)_4]^{2+}

    C

    [Cu(NH3)2(H2O)2]2+[Cu(NH_3)_2(H_2O)_2]^{2+}

    D

    [Cu(CN)4]2−[Cu(CN)_4]^{2-}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Classification Of Elements
    🎯Topic:Nitrogen Family [Group-15]
    PYQ YEAR: 2020
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :p-Block Elements, Coordination Compounds

    7.

    Which element of Group 15 shows the greatest metallic character?

    A

    Nitrogen

    B

    Phosphorus

    C

    Arsenic

    D

    Bismuth

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Classification Of Elements
    🎯Topic:Nitrogen Family [Group-15]
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Group 15, Metallic Character

    8.

    The inert pair effect is most pronounced in which element of Group 15?

    A

    Nitrogen

    B

    Phosphorus

    C

    Arsenic

    D

    Bismuth

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Classification Of Elements
    🎯Topic:Nitrogen Family [Group-15]
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Inert Pair Effect, Group 15 Elements

    9.

    Identify the INCORRECT statement regarding PCl5PCl_5:

    A

    Phosphorus undergoes sp3dsp^3d hybridization.

    B

    The shape of PCl5PCl_5 is trigonal bipyramidal.

    C

    Axial P-Cl bonds are longer than equatorial P-Cl bonds.

    D

    All P-Cl bonds have equal bond lengths.

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Classification Of Elements
    🎯Topic:Nitrogen Family [Group-15]
    PYQ YEAR: 2019
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Chemical Bonding and Molecular Structure

    10.

    Stability of hydrides generally increases with:

    A

    Increase in bond angle

    B

    Decrease in bond angle

    C

    Decrease in resonance

    D

    None of these

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Classification Of Elements
    🎯Topic:Nitrogen Family [Group-15]
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Molecular Geometry, Bond Angle, Stability of Hydrides

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