1.

    Arrange the following oxides in increasing order of basic character: extV2extO3ext{V}_2ext{O}_3, extV2extO4ext{V}_2ext{O}_4, extV2extO5ext{V}_2ext{O}_5.

    A

    extV2extO3<extV2extO4<extV2extO5ext{V}_2ext{O}_3 < ext{V}_2ext{O}_4 < ext{V}_2ext{O}_5

    B

    extV2extO5<extV2extO4<extV2extO3ext{V}_2ext{O}_5 < ext{V}_2ext{O}_4 < ext{V}_2ext{O}_3

    C

    extV2extO4<extV2extO3<extV2extO5ext{V}_2ext{O}_4 < ext{V}_2ext{O}_3 < ext{V}_2ext{O}_5

    D

    extV2extO5<extV2extO3<extV2extO4ext{V}_2ext{O}_5 < ext{V}_2ext{O}_3 < ext{V}_2ext{O}_4

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    PYQ YEAR: 2023
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :d-block elements, transition metal oxides, oxidation states, acidic and basic character

    Related Questions

    1.

    The compound insoluable in water is

    A

    Mercurous nitrate

    B

    Mercurous chloride

    C

    Mercuric nitrate

    D

    Mercurous perchlorate

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Solubility rules, Ionic compounds

    2.

    The pair of metals which dissolve in NaOH(aqaq.) is:

    A

    Al, Cu

    B

    Zn, Cd

    C

    Pb, Sn

    D

    Zn, Al

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Amphoteric metals, Reactions with bases

    3.

    Copper sulphate is commercially made from copper scrap by:

    A

    Dissolving in hot concentrated sulphuric acid

    B

    Action of dilute sulphuric acid and air

    C

    Heating with sodium sulphate

    D

    Heating with sulphur

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Chemical reactions, Copper chemistry, Industrial processes

    4.

    In the first transition series, the differentiating electron enters:

    A

    5dd-orbital

    B

    4dd-orbital

    C

    3dd-orbital

    D

    2dd-orbital

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :electronic configuration, transition metals, d-orbitals

    5.

    All the metals form oxides of the type MOMO except

    A

    Copper

    B

    Barium

    C

    Silver

    D

    Lead

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Oxidation states of metals, chemical formulas of oxides

    6.

    The element present in red blood cells of human blood is:

    A

    Fe

    B

    Ra

    C

    Co

    D

    All of these

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Human biology, red blood cells, elements

    7.

    Which concept is NOT explained by Mendel's laws?

    A

    Dominance and recessiveness

    B

    Segregation of alleles

    C

    Independent assortment

    D

    Polygenic inheritance

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    PYQ YEAR: 2022
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Mendelian Inheritance, Polygenic Inheritance

    8.

    Ruby copper is:

    A

    Cu2O{\rm{C}}{{\rm{u}}_2}{\rm{O}}

    B

    Cu(OH)2{\rm{Cu}}{\left( {{\rm{OH}}} \right)_2}

    C

    CuCl2{\rm{CuC}}{{\rm{l}}_2}

    D

    Cu2Cl2{\rm{C}}{{\rm{u}}_2}{\rm{C}}{{\rm{l}}_2}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Chemical nomenclature, copper compounds

    9.

    Magnetic moment of Cr2+C{r^{2 + }} ion is

    A

    4.9 BM

    B

    2.82 BM

    C

    3.87 BM

    D

    5.9 BM

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :electronic configuration, Hund's rule, magnetic moment calculation

    10.

    Cadmipone is a mixture of:

    A

    CdS and BaSO4{\rm{BaS}}{{\rm{O}}_4}

    B

    CaSO4{\rm{CaS}}{{\rm{O}}_4} and BaS

    C

    CaS and ZnSO4{\rm{ZnS}}{{\rm{O}}_4}

    D

    CaSO4{\rm{CaS}}{{\rm{O}}_4} and ZnS

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:d- and f-Block Elements
    🎯Topic:Characteristic Properties
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Chemical composition, Inorganic compounds

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