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Which of the following will not act as o...

Which of the following will not act as oxidising agents?

A

`CrO_(3)`

B

`MoO_(3)`

C

`WO_(3)`

D

`CrO_(4)^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
B, C
A species can act as oxidising agent only when metal is present in high oxidation state but lower oxidation state show stability. As higher oxidations states of W and Mo are more stable, therefore they will not act as oxidising agents.
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NCERT EXEMPLAR-D AND F-BLOCK ELEMENTS-D And F-Block Elements
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  2. Transition elements form binary compounds with halogens. Which of the ...

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  3. Which of the following will not act as oxidising agents?

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  4. Although +3 is the characteristic oxidation state for lanthanoids but ...

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  5. Why does copper not replace hydrogen from acids?

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  6. Why E^(-) values for Mn, Ni and Zn are more negative than expected?

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  7. Why first ionisation enthalpy of Cr is lower than that of Zn?

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  8. Transition elements show high melting points. Why?

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  9. When Cu^(2+) ion is treated with KI, a white precipitate is formed. Ex...

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  10. Out of Cu(2)Cl(2) and CuCl(2), which is more stable and why?

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  11. When a brown compound of manganese (A) is treated with HCl it gives a ...

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  12. Although fluorine is more electronegative than oxygen, but the ability...

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  13. Although Cr^(3+) and Co^(2+) ions have same number of unpaired electro...

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  14. Ionisation enthalpies of Ce, Pr and Nd are higher than Th, Pa and U. W...

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  15. Although Zr belongs to 4d and Hf belongs to 5d transition series but i...

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  16. Cerium shows oxidation state of +4 because

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  17. Explain why does colour of KMnO(4) disappear when oxalic acid is added...

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  18. When orange solution containing Cr(2)O(7)^(2-) ion is treated with an ...

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  19. A solution of KMnO(4) on reduction yields either a colourless solution...

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  20. The second and third rows of transition elements resemble each other m...

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