Eduprobe
Question:
The catalytic activity of transition metals and their compounds is ascribed mainly to: their ability to adopt variable oxidation states, their unfilled d-orbitals, their chemical reactivity, their magnetic behaviour
their unfilled d-orbitals
their magnetic behaviour
their ability of adopt variable oxidation states
their chemical reactivity
Solution:
The catalytic activity of transition metals and their compounds is ascribed mainly due to their ability to adopt variable oxidation states. Examples: +5V2O5, +3V2O3 2SO2+O2 + V2O5 → 2SO3