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The cation containing maximum number of ...

The cation containing maximum number of unpaired electrons is

A

Fe(II)

B

Fe(III)

C

Co(II)

D

Ni(II)

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The correct Answer is:
B
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RESONANCE-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -National Standard Examination In chemistry
  1. Paramagnetism is not exhibited by

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  2. Articles made of copper or bronze slowly tarnish in air and turn green...

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  3. The cation containing maximum number of unpaired electrons is

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  4. Chromium has the lowest oxidation state in

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  5. Which of the following statements concerning transition elements is fa...

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  6. The magnetic moment of MnSO(4).4H(2)O is:

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  7. Which two of the following reactions are possible? (i) FeCl(3)+SnCl(...

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  8. Europium forms stable Eu^(2+) ions because

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  9. Which of these ion is expected to be coloured in aqueous solution? [...

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  10. How many unpaired electrons are in a Fe^(2+) ion in the ground state?

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  11. In which of the following transition metal ion complexes, the colour i...

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  12. The compound with the lowest oxidation state of iron is:

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  13. The aqua ion which will be almost colorless is-

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  14. MnO(4)^(-) is of intense pink colour, though Mn is in(+7) oxidation st...

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  15. The product formed when chlorine gas is passed over hot iron is-

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

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  17. The compound in which Mn has oxidation state off +3 is

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  18. Lanthanide contraction is caused due to -

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  19. Which of the following ion is colourless?

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  20. The lanthanide compound which is used as a most powerful liquid laser ...

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