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Which of the following statement is fals...

Which of the following statement is false?

A

of the `d^(4)` species manganese (III) is strongly reducing while `Cr^(2+)` is strongly oxiding

B

Cobalt (II) is stable in aqeous solution but in the presence of complexing reagents it is easily oxidised.

C

The `D^(1)`configuration is very unstable in ions.

D

None of these

Text Solution

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The correct Answer is:
A
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RESONANCE-D BLOCK ELEMENTS-EXERCISE-I PART-II
  1. Maximum oxidation state is shown by:

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  2. The less stable oxidation state of Cr are:

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  3. Which of the following statement is false?

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  4. Whih of the followin statement are correct?

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  5. Which of the following has the maximum number of unpaired d-electron?

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

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  7. A metal ion from the first transition series has a magnitic moment (ca...

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  8. Magnetic moment of Cr^(+2)(Z=24),Mn^(+2)(Z=25) and Fe^(2+) (Z=26) are ...

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  9. The magnetic moment of .25Mn in ionic state is sqrt(15)B.M, then Mn is...

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  10. which of the following group of ion is paramagnetic in nature:

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

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  12. Which one of the ionic species will impart colour to an aqueous soluti...

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

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  14. The yellow colour of chromates changes to orange on acidification due ...

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  15. CuSO(4).5H(2)O is blue in colour because

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  16. whih of the following ions gives(s) coloured aqeous solution?

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  17. The catalytic activity of the transition metals and their compound is ...

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  18. Cementite is:

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  19. which forms interstitial compounds?

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  20. Which of the following statement is/are correct?

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