The tendency of $ 3d-$ metal ions to form stable complexes is due to their

  • A

    Variable oxidation state

  • B

    Very low ionization energies

  • C

    High charge/size ratio and vacant $ d-$ orbitals

  • D

    $(b) $ and $(c) $ both

Similar Questions

The $\mathrm{E}^{\circ}$ value for the $\mathrm{Mn}^{3 *} / \mathrm{Mn}^{2+}$ couple is more positive than that of $\mathrm{Cr}^{3+} / \mathrm{Cr}^{2+}$ or $\mathrm{Fe}^{3+} / \mathrm{Fe}^{2 *}$ due to change of

  • [NEET 2024]

The trivalent ion having largest size in following is

The set of correct statements is:

$(i)$ Manganese exhibits $+7$ oxidation state in its oxide.

$(ii)$ Ruthenium and Osmium exhibit $+8$ oxidation in their oxides.

$(iii)$ $Sc$ shows $+4$ oxidation state which is oxidizing in nature.

$(iv)$ $Cr$ shows oxidising nature in $+6$ oxidation state.

  • [JEE MAIN 2023]

Transition metals are not characterized by

An acidified manganate solution undergoes disproportionation reaction. The spin-only magnetic moment value of the product having manganese in higher oxidation state is $....\,B.M.$ (Nearest integer)

  • [JEE MAIN 2022]