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Which of the following metals exhibits m...

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

A

Fe

B

Zn

C

Cr

D

Both (a) and (x c )

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The correct Answer is:
D
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NIKITA PUBLICATION-D-AND F-BLOCK ELEMENTS-MULTIPLE CHOICE QUESTIONS
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  2. maximum number of variable oxidation state in a transition series are ...

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

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

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  5. The density of Sc is

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

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

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  8. Paramagnetism is exhibited by molecules which

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  9. Which one of the following is transition element ?

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  10. Which of the following is a colourless ion?

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  11. If a compund absorbs orange colour from the white light, then the obse...

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  12. The atomic radii of transition elements in a period are.

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  13. Which of the following d-block elements has d^(10) configuration ?

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  14. The ore cromite contsins FeO and

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  15. An atom with atomic number 21 belongs to the category of

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  16. The highest magnetic moments is shown by the transition metal ion wit...

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  17. Which of the following pair of ions have the same number of unpaired e...

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  18. A transition element X has a configuration [Ar] 3d^(4) in its + 3 oxi...

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  19. The maximum number of transition metal elements that can be accommodat...

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