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Among the following, identify the specie...

Among the following, identify the species with an atom in `+6` oxidation state.

A

`[MnO_(4)]^(-)`

B

`[Cr(CN)_(6)]^(3-)`

C

`Cr_(2)O_(3)`

D

`CrO_(2)Cl_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
`CrO_(2)Cl_(2)`
Let O. No. of Cr=x
`thereforex+2(-2)+2(-1)=0`
x-4-2=0
x-4-2=0
`thereforex=+6`
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DISHA PUBLICATION-REDOX REACTIONS-EXERCISE-2 : CONCEPT APPLICATOR
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  2. In which of the following is the highest oxidation state not possible?

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  3. Oxidation state of nitrogen is incorrectly given for:

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  4. For the reaction M^(x+)+MnO(4)^(ө)rarrMO(3)^(ө)+Mn^(2+)+(1//2)O(2) ...

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  5. Arrange the following in the order of their decreasing electrode poten...

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  6. Equivalent mass of oxidizing agent in the reaction, SO(2)+2H(2)S rar...

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  7. An unknown oxidising agent contains the element Y in + 5 state. If it ...

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  8. For the red ox reaction : Cr2O(7)^(2-) +I^(-) +H^(+) rarr Cr^(3+) + ...

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  9. The oxidation states of the most electronegative element in the produc...

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  10. In which of the following pairs, there is greatest difference in the o...

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  11. The correct decreasing order ofoxidation number ofoxygen in compounds ...

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  12. When KMnO(4) acts as an oxidising agnet and ultimetely from MnO(4)^(2-...

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  13. The oxidation state of iodine in H(4)IO(6)^(-) is:

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  14. The reaction in which hydrogen peroxide acts as a reducting agent is .

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  15. The atomic number of an element is 22. The highest oxidation state exh...

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  16. Consider the following statements Reaction KIO(3) + 5Kl + 6HCl = 3...

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  17. The number of mole of KMnO(4) that will be needed to react completely ...

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  18. Which of the following is not a redox reaction ?

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  19. Which of the following reactions is not a redox reaction?

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  20. Equivalent weight of MnO(4)^(ɵ) in acidic neutral and basic media are ...

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  21. If equal volumes of 1 M KMnO(4) and 1M K(2)Cr(2)O(7) solutions are all...

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