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D and F Block Elements question

2012 · Q60
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D and F Block Elements question

2012 · Q60

NEETChemistryD and F Block ElementsMCQ+4 / −1
The catalytic activity of transition metals and their compounds is ascribed mainly to
  1. A
    their magnetic behaviour
  2. B
    their unfilled ddd-orbitals
  3. C
    their ability to adopt variable oxidation states
  4. D
    their chemical reactivity
View written solutionFree

Correct answer: 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.

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