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The catalytic activity of the transition...

The catalytic activity of the transition metals and their compound is ascribed to:

A

their chemical reactivity

B

their unfilled d-orbitals

C

their ability to adopt multiple oxidation states in their complex ion

D

none of these

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The correct Answer is:
C
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NIKITA PUBLICATION-D-AND F-BLOCK ELEMENTS-MULTIPLE CHOICE QUESTIONS
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  2. Transition metal usually exhibit highest oxidation states in their

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  3. The catalytic activity of the transition metals and their compound is ...

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  4. In the ground state, an element has 13 electrons in its 'M' shell. The...

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  5. In the ground state configuration of Co, how many electrons are presen...

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  6. If the colours of salts of transition elements are due to the presence...

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  7. The transition elements are so named because

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  8. The atomic radii of transition series elements

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  9. Which one of the following elements exhibits highest valency ?

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  10. Which one of the following statements is false ?

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  11. Which of the following ions has d^(5) electronic configureation ?

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  12. Which of the following ions is colourless ?

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  13. maximum number of variable oxidation state in a transition series are ...

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  14. Which of the following metals exhibits more than one oxidation state ?

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  15. Which of the following species is expected to be paramagnetic ?

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  16. The density of Sc is

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  17. In first transition series, the melting point of Mn is low because

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  18. Of the ions Zn^(2), Ni^(2 +) and Cr^(3 +) [atomic number of Zn = 30, N...

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  19. Paramagnetism is exhibited by molecules which

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  20. Which one of the following is transition element ?

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