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Among the following, the compound that i...

Among the following, the compound that is both paramagnetic and coloured is :-

A

`K_(20Cr_(2)O_(7)`

B

`(NH_(4))_(2)[TiCl_(6)]`

C

`VOSO_(4)`

D

`K_(3)[Cu(CN)_(4)]`

Text Solution

Verified by Experts

The correct Answer is:
C
`VOSO_(4)`is paramagnetic as well as coloured compound.
The oxidation state of vanadium in `VOSO_(4) is +4`.
`V[Z=23]=[Ar]3d^(3)4s^(2)`
`V^(4+)[Z=23][Ar]3d^(1)4s^(0)`
it has one unpaired electron. Hence, it is paramagnetic in nature.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-D - AND F-BLOCK ELEMENTS-Exercise 2 (Miscellaneous Problems)
  1. Within each transition series, the oxidation states

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  2. Which one of the following reactions will occure on heating AgNO(3) ab...

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  3. Among the following, the compound that is both paramagnetic and colour...

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  4. Number of electrons in 3d-orbital of V^(2+),Cr^(2+),Mn^(2+) and Fe^(2+...

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  5. A soild, A which has photographic effect reacts with the solution of a...

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  6. Amongst [TiE(6)]^(2-), [CoF(6)]^(3-), Cu(2)Cl(2) and [NiCl(4)]^(2-) [A...

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  7. At pH=4,CrO(4)^(2-) exists as

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  8. When Kl (excess) is added to (I)CuSO(4) , (II) HgCl(2) (III) Pb(N...

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  9. In which of the following complexes the metal ion is in zero oxidation...

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  10. Consider the followinh reaction of permaganate ions. (I)10I^(-)+2Mn...

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  11. Which of the following statement (s) is/are correct when a mixture of ...

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  12. When KMnO(4) solution is added to hot oxalic acid solution, the decolo...

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  13. What happen when a solution of potassium chromate is treated with an e...

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  14. When SO(2) is passed through an acidified K(2)Kr(2)O(7) solution, the ...

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  15. The catalytic of the transition metals and their compounds is describe...

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  16. Select the correct order of oxidising power in acidic medium.

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  17. Magnetic moment of maganese in (NH(4))(2) MnBr(2) is

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  18. Pick out the correct statements from the following. (I) Cobalt (III...

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  19. Which pair of compounds is expected to show similar colour in aqueous ...

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  20. Match the following columns.

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