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The pair of compounds having metals in t...

The pair of compounds having metals in their highest oxidation state is.

A

`MnO_2,FeCl_3`

B

`MnO_4^(-), CrO_2Cl_2`

C

`[Fe(CN)_6]^(3-),[Co(CN)_6]^(3-)`

D

`[NiCl_4]^(2-),[CoCl_4]^(-)`

Text Solution

Verified by Experts

The correct Answer is:
B
`MnO_4^(-) (+7) and CrO_2Cl_2(+6)` have highest oxidation states.
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MODERN PUBLICATION-REDOX REACTIONS -COMPETITION FILE (Objective Questions) (B. MULTIPLE CHOICE QUESTIONS)
  1. Assuming complete ionization, same moles of which of the following com...

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  2. For the redox reaction MnO(4)^(ө)+C(2)O(4)^(2-)+H^(o+)rarrMn^(2+)+CO...

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  3. The correct structure of tribromooctaoxide.

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  4. Which of the following reactions are disproportionation reactions? ...

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  5. Consider the following E^o values : E^o Fe^(3+)//FE^(2+)o = + 0.77 ...

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  6. In a cell that utilizes the reactions. Zn(s) + 2H^(+) (aq) rightarro...

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  7. aK(2)Cr(2)O(7)+bKCl+cH(2)SO(4)rarrxCrO(2)Cl(2)+yKHSO(4)+zH(2)O The a...

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  8. What products are expected from the desproprtionation reactin of hypoc...

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  9. What is the oxidation number of carbonyl carbon in methanal ?

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  10. The reaction 3ClO^(-)(aq)rarrClO(3)^(-)(aq)+2Cl^(-)(aq) is an example ...

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  11. How many electrons are involved during the oxidation reaction of KMnO4...

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  12. For redox reaction {:(xMnO(4)^(-)+yH(2)C(2)O(4)+ZH^(+)),(" ...

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  13. Iodine reacts with concentrateed HNO3 to yield Y along with other prod...

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  14. The correct order of the oxidation states of nitrogen in NO, N(2)O, N...

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  15. In order to oxidise a mixture of one mole of each of FeC2O4,Fe2(C2O4)3...

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  16. In the reaction of oxalate with permanganate in acidic medium, the num...

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  17. For the electrochemical cell, M|M^(+) ||X^(-)|X, E(M^(+)//M)^(@) = 0.4...

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  18. Standard electrode potential data are used for understanding the stabi...

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  19. The pair of compounds having metals in their highest oxidation state i...

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  20. Which ordering of compounds is according to the decreasing order of th...

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