1.

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

Answer»

their ability to ADOPT variable oxidation STATES
their chemical reactivity
their magnetic behaviour
their unfilled d-orbitals

Solution :The catalytic activity of transitiion metals and their compounds is ASCRIBED mainly to their ability to adopt variable oxidation states DUE to which theyeasily absorb and re-emit wide rangeof energies to provide the NECESSARY activation energy.Also,because of the variable oxidation states, they easily combine with one of the reactantsto form an intermediate which reacts with the secondreactant to formthe final products.


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