The catalytic activity of transition metals and their compounds is ascribed mainly to

  • [AIPMT 2012]
  • A

    their magnetic behaviour

  • B

    their unfilled $d-$ orbitals

  • C

    their ability to adopt variable oxidation states

  • D

    their chemical reactivity

Similar Questions

Which of the following pairs of elements might form an alloy

Ammonia is a Lewis base. It forms complexes with cations. Which one of the following cations does not form complex with ammonia

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]

$Fe,$ $Co$ and $Ni$ have valuable catalytic properties in process involving

The colorless species is