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The number of unpaired electrons in Ni^(...

The number of unpaired electrons in `Ni^(2+)` is :

A

Zero

B

2

C

4

D

8

Text Solution

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The correct Answer is:
B
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JMD PUBLICATION-d-And f-BLOCK ELEMENTS-Example
  1. Which of the following is not a d-block element?

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  2. Which metal has lowest melting point? Cs Hg Mn Cu

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  3. The number of unpaired electrons in Ni^(2+) is :

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  4. No. of unpaired electrons in Fe^(2+) ions is :

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  5. The magnetic nature of elements depend on the presence of unpaired e...

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  6. Electronic configuration of a transition element X in +3 oxidation s...

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  7. With respect to aqueous solutions of copper salts, which of the foll...

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  8. Zn, Cd, Hg are sometimes not considered as transition elements. Commen...

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  9. Out of Fe^(2+) and Fe^(3+),Fe^(3+) has more number of unpaired electro...

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  10. Scandium (Z=21) shows oxidation states of +1 and +3.

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  11. Mn (Atomic No.25) metal is with maximum paramagnetic character. Explai...

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  12. In aqueous solutions Cu^+ is less stable than Cu^(2+)

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  13. in 3d-series,zinc (Z=30) has highest enthalpy of atomisation.

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  14. In 3d-series,manganese shows maximum number of oxidation states.

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  15. As Oxidation state of a transition metal increases,the base character ...

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  16. ZnO turns yellow on heating. Why?

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  17. The O.S. of manganese in KMnO4is +7

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  18. What are transition elements ? Which of the d block elements are not r...

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  19. What are transition elements ? Which of the d block elements are not r...

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  20. Give the general electronic configuration of d-block elements.

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