1.

    Philosopher’s wool when heated with BaO at 1100∘^\circ C gives the compound :

    A

    BaZnO2{\rm{BaZn}}{{\rm{O}}_2}

    B

    Ba+ZnO2{\rm{Ba}} + {\rm{Zn}}{{\rm{O}}_2}

    C

    BaCdO2{\rm{BaCd}}{{\rm{O}}_2}

    D

    BaO2+Zn{\rm{Ba}}{{\rm{O}}_2} + {\rm{Zn}}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Hard
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Chemical reactions, Metal oxides, Nomenclature

    Related Questions

    1.

    Which of following ions has electronic configuration [Ar]3d6\left[ {Ar} \right]3{d^6}

    A

    Ni3+N{i^{3 + }}

    B

    Mn3+M{n^{3 + }}

    C

    Fe3+F{e^{3 + }}

    D

    CO3+C{O^{3 + }}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :electronic configuration, transition metal ions, orbital filling

    2.

    Which of the following elements is alloyed with copper to form brass?

    A

    Bismuth

    B

    Zinc

    C

    Lead

    D

    Antimony

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Alloys, Brass, Composition of materials

    3.

    Which one of the following exist in the oxidation state other than +3?

    A

    B

    B

    Al

    C

    Ce

    D

    Ga

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :oxidation states, transition metals, periodic table trends

    4.

    Lightest transition element is:

    A

    Fe

    B

    Sc

    C

    Os

    D

    Co

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Periodic Table, Transition Metals, Atomic Weight

    5.

    Among the following the coloured compound is

    A

    CuCl{\rm{CuCl}}

    B

    K3[Cu(CN)4]{{\rm{K}}_3}\left[ {{\rm{Cu}}{{\left( {{\rm{CN}}} \right)}_4}} \right]

    C

    CuF2{\rm{Cu}}{{\rm{F}}_2}

    D

    [Cu(CH3CN)4]BF4\left[ {{\rm{Cu}}{{\left( {{\rm{C}}{{\rm{H}}_3}{\rm{CN}}} \right)}_4}} \right]{\rm{B}}{{\rm{F}}_4}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Transition metal chemistry, Color of coordination compounds, d-d transitions

    6.

    The radius of La3+{\rm{L}}{{\rm{a}}^{3 + }} (Atomic number of La = 57) is 1.06 Å. Which one of the following given values will be closest to the radius of Lu3+{\rm{L}}{{\rm{u}}^{3 + }}?(Atomic number of Lu=71)

    A

    1.60 Å

    B

    1.40 Å

    C

    1.06 Å

    D

    0.85 Å

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Lanthanide Contraction, Atomic Radius, Ionic Radius

    7.

    Which of the following pairs of lanthanide ions are diamagnetic?

    A

    Ce4+, Yb2+

    B

    Gd3+, Tb4+

    C

    Eu2+, Lu3+

    D

    Ce4+, Eu2+

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    PYQ YEAR: 2024
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Lanthanides, Magnetism, Electronic Configuration

    8.

    In general, the transition elements exhibit their highest oxidation states in their compounds with elements like:

    A

    C

    B

    S

    C

    S and P

    D

    F and O

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Transition Metals, Oxidation States, Electronegativity

    9.

    The aqueous solution containing which one of the following ions will be colourless?

    A

    Fe2+F{e^{2 + }}

    B

    Zn2+Z{n^{2 + }}

    C

    Ni2+N{i^{2 + }}

    D

    V3+{V^{3 + }}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Transition metal chemistry, d-orbital splitting, electronic configuration, color of ions

    10.

    Rusting of iron in moist air involves:

    A

    Loss of electrons by Fe

    B

    Gain of electrons by Fe

    C

    Neither gain nor loss of electrons

    D

    Hydration of Fe

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Oxidation, Reduction, Redox reaction

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