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Which of the following has the maximum n...

Which of the following has the maximum number of unpaired d electrons ?

A

Zn

B

`Fe^(2+)`

C

`Ni^(3+)`

D

`Cu^+`

Text Solution

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The correct Answer is:
B
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MOTION-D-BLOCK ELEMENTS -Exercise III
  1. Assertion: KMnO(4) is purple in colour due to charge transfer . Reas...

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  2. Assertion : K(2)CrO(4) has yellow colour due to charge transfer. Rea...

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  3. Statement-1: The highest oxidation state of chromium in its compound i...

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  4. Assertion : CrO(3) reacts with HCl to form chromyl chloride gas Reas...

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  5. Statement-1: Zinc does nt show characteristic properties of transition...

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  6. Assertion: Tungsten has very high melting point. Reason: Tungsten is...

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  7. Statement-1: Equivalent mass of KMnO(4) is equal to one-third of its m...

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  8. Assertion: Ce^(4+) is used as an oxidising agent in volumetric analysi...

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  9. Statement-1: Promethium is a man mae element. Statement-2: It is rad...

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  10. Statement-1: Cu^(+) ion is colourless. Statement-2: Four water molec...

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  11. Among d-block elements, the most abundant element belongs to the :

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  12. The 3d-metal ion are generally paramagnetic in nature because

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  13. Green vitriol is formed by :

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  14. Which one of the following forms with an excess of CN^(-) (Cyanide) a ...

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  15. Of the following outer lectronic configurations fo atoms the highest o...

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

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  17. Which of the following has the maximum number of unpaired d electrons ...

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  18. The colour of transition metal ion is attributed to:

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  19. The property, which is not characteristic of transition metals:

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  20. The correct order of ionisation energy is :

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