MCQ
Catalytic activity of transition elements and their compounds is due to their _______.
- ASmall size.
- BVacant d-orbitals.
- CHigher densities.
- DColour.
Explanation:
The catalytic activity of transition elements is ascribed to their ability to adopt multiple oxidation states and to form complexes.
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(Given : $R =0.083\, L\, bar \,K ^{-1} \,mol ^{-1}$ )