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d-block elements can act as catalysts du...

d-block elements can act as catalysts due to their ability to

A

Exhibit variable oxidation states

B

Coloured ion formation

C

Paramagnetic nature

D

Alloy formation

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The correct Answer is:
A
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AAKASH SERIES-REVISION EXERCISE -d-BLOCK ELEMENTS
  1. Cu^(+2) can oxidise the halide

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  2. In aqueous solution the following undergoes disproportination reaction

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  3. d-block elements can act as catalysts due to their ability to

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  4. Incorrect statement reagarding interstial hydrides is

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  5. The properties of Zr and Hf are similar because :

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  6. The stability of particular oxidation state of a metal in aqueous solu...

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  7. Which among FeO and Fe2O3 is more basic?

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  8. Which of the following properties would you not expect copper to exhib...

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  9. Identify the incorrect statement among the following

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  10. The complex K3[Fe(CN)6] should have a spin only magnetic moment of

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  11. The pair of the compounds in which both the metals are in the highest ...

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  12. In which of the following complexes the metal ion is in zero oxidation...

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  13. Which of the following is diamagnetic?

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  14. Which one of the following sets correctly represents the increase in t...

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  15. In the complex [Ni(H2O)2 (NH3)4]^(2+) the number of unpaired electron...

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  16. Heat of atomization of zinc is lowest among 3d block elements due to

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  17. The positive standard reduction potential of Cu^(+2)/ Cu electrode is ...

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  18. The observed and calculated E^0 values for M^(+2)/M are same for

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  19. When a large amount of KMnO4 is added to concentrated H2SO4, an explos...

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  20. Reaction of KMnO4 in neutral or very weakly acidic solution can be rep...

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