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Which of the following contains maximum ...

Which of the following contains maximum number of unpaired electrons?

A

`Mn^(2+)`

B

`Co^(3+)`

C

`Co^(2+)`

D

`Fe^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
A

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MTG GUIDE-THE d-AND f- BLOCK ELEMENTS-NEET CAFE (TOPICWISE PRACTICE QUESTIONS)
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  2. Choose the correct statement for transition element.

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  3. Which of the following contains maximum number of unpaired electrons?

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  4. Which of the following compounds is not coloured?

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  5. Which one of the following ionic species will impart colour to an aque...

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  6. Zinc and mercury do not show variable valency like d-block elements be...

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  7. Which of the following is colourless in water?

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  9. In the ground state, an element has 13 electrons in its "M shell". The...

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  10. The ionic radii of group-12 metals Zn, Cd and Hg are smaller than thos...

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  11. A non-copper alloy is

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  12. Which one of the following transition metal ions has the lowest densit...

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  13. The last electron in d-block elements goes to

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  15. Elements which generally exhibit multiple oxidation states and whose i...

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  16. Which of the following substances has least ionic character?

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  18. Transition metals are often paramagnetic owing to

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  19. Which of the following is not an element?

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