The dand fblock elements - Result Question 13
####13. The catalytic activity of transition metals and their compounds is ascribed mainly to : [2012 M]
(a) their magnetic behaviour
(b) their unfilled $d$-orbitals
(c) their ability to adopt variable oxidation state
(d) their chemical reactivity
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Solution:
- (c) The transition metals and their compounds are used as catalysts because of the variable oxidation states. Due to this, they easily absorb and re-emit wide range of energy to provide the necessary activation energy.
