• Zigya Logo

    Book Store

    Download books and chapters from book store.
    Currently only available for.
    CBSE

    Subject

    Chemistry
    zigya logo

    NEET Chemistry : The d-And-f-Block Elements

    Multiple Choice Questions

    51.

    Which one is colourless ?

    • Co2+

    • Ni2+

    • Fe3+

    • Cu+

    Answer
    • 52.

    Lanthanides and actinides are also called :

    • short periods

    • inner-transition elements

    • long periods

    • main transition elements

    Answer
    • 53.

    Colour imparted by Co(II) compounds to glass is

    • green

    • brown

    • violet

    • blue

    Answer
    • 54.

    In first transition series, which element show maximum oxidation states :

    • Co

    • Mn

    • Cr

    • Fe

    Answer
    • 55.

    In presence of acidic medium, KMnO4 converts H2S into

    • Mn only

    • MnS only

    • MnS + S

    • S only

    Answer
    • 56.

    The reaction between metallic silver and aqueous NaCN forming a soluble complex occurs in the presence of :

    • nitrogen

    • oxygen

    • helium

    • chlorine

    Answer
    • 57.

    Enrichment of U235 is done by

    • IF7

    • CIF3

    • IF3

    • ClF5

    Answer
    • 58.

    Which is not true statement ?

    • Ions of d-block elements are coloured due to d-d transition

    • Ions of f-block elements are coloured due to f-f transition

    • [Sc(H2O)6]3+ , [Ti(H2O)6]4+ are coloured complexes

    • Cu+ is colourless ion

    Answer
    • 59.

    The most paramagenetic is :

    • Cr3+

    • Co2+

    • Mn2+

    • Fe2+

    Answer
    • 60.

    The diamagnetic species is

    • [Ni(CN)4]2-

    • [Ni(Cl)4]2-

    • [CoCl]2-

    • [CoF6]3-

    Answer
    • 1.png
    curious learner
    Do a good deed today
    Refer a friend to Zigya
    Share It
    Share it