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Which of the following characteristics o...

Which of the following characteristics of the transition metals is associated with their catalytic activity ?

A

High enthalpy of atomization

B

Paramagnetic behaviour

C

Colour hydrated ions

D

Variable oxidation states

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The correct Answer is:
D
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AAKASH SERIES-D-BLOCK ELEMENTS-OBJECTIVE EXERCISE-3 (PREVIOUS NEET/AIPMT QUESTIONS)
  1. Which of the following characteristics of the transition metals is ass...

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  2. The basic character of the transition metal monoxides follows the orde...

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  3. The correct order of ionic radii of Y^(3+), La^(3+), Eu^(3+) and Lu^(3...

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  4. Among the following series of transition metal ions, the one where all...

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  5. Lanthanoids are

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  6. The number of moles of KMnO4 reduced by one mole of KI in alkaline med...

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  7. Four successive member of the first row tran sition elements are liste...

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  8. The aqueous solution containing which one of the following ion will be...

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  9. More number of oxidation states are exhibited by the actinoids than by...

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  10. In which of thc following pairs are both the ions coloured in aqueous ...

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  11. Copper sulphate dissolves in excess of KCN to give

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  12. Which one of the following ions is the most stable in aqueous solution...

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  13. Identify the incorrect statement among the following

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  14. The correct order of decreasing second ionization enthalpy of Ti(22), ...

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  15. Which one of the elements with the following outer orbital configurati...

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  16. Which of the following ions will exhibit colour in aqueous solutions ?

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  17. Which one of the following ions has electronic configuration [Ar]3d^6 ...

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  18. Which of the following pairs has the same size

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  19. Match List I (substances) with List II (processes) employed in the man...

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  20. Which of the following oxidation states is common for all lanthanides ...

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