The catalytic activity of transition metals and their compounds is ascribed mainly to:
A
their unfilled d-orbitals
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B
their ability of adopt variable oxidation states
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C
their chemical reactivity
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D
their magnetic behaviour
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Solution
The correct option is A their ability of adopt variable oxidation states Transition metals show variable oxidation states, due to which they can perform as a catalyst.
For example: Contact process, i.e., manufacturing of sulphuric acid.