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The oxoanion in which the oxidation stat...

The oxoanion in which the oxidation state of the central atom is same as its group number in the periodic table is:

A

`SO_(4)^(2-)`

B

`VO_(2)^(-)`

C

`MnO_(4)^(2-)`

D

`Cr_(2)O_7^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
D
`Cr_(2)O_(7)^(2)` oxidation state and group number is 6.
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DISHA PUBLICATION-THE D- AND F- BLOCK ELEMENTS -EXERCISE - 1 CONCEPT BUILDER (TOPIC 2 : COMPOUNDS OF TRANSITION METALS)
  1. The aqueous solution of transition metal salt changes colour from pink...

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  2. Which of the comparison Zn, Cd, Hg is/are incorrect? (I) ZnCl(2) is ...

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  3. The oxoanion in which the oxidation state of the central atom is same ...

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  4. When an aqueous solution of copper (II) sulphate is saturated with amm...

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  5. When concentrated HCI is added to an aqueous solution of CoCl(2...

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  6. Colourless solutions of the following four salts are placed separately...

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  7. The correct statements of the following

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

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  9. K(2)Cr(2)O(7) on heating with aqueous NaOH gives

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  10. What would happen when a solution of potassium chromate is treated wit...

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  11. The oxidation state of chromium in the final product formed by the rea...

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  12. The final products formed on the addition of KI to copper sulphate sol...

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  13. KMnO(4) (acidic / alkaline ) is not decolurised by

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  14. Acidified K(2)Cr(2)O(7) solution turns green when NasO(3) is added to ...

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  15. KMnO4 can be prepared fromK2MnO4 as per the reaction: The reaction ...

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  16. The pair of compounds that can exist together is:

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  17. In acidic medium, H(2)O(2) changes Cr(2)O(7)^(-2) to CrO(5) which has ...

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  18. The reaction of aqueous KMnO(4) with H(2)O(2) i acidic conditions give...

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  19. Which of the following processes does not involve oxidation of iron ?

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  20. Assuming complete ionization , same moles of which of the following co...

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